@article {filipova-marinova_paleoclimate_2024,
	title = {Paleoclimate changes and ecosystem responses of the Bulgarian Black Sea zone during the last 26000 years},
	journal = {Nature Conservation},
	volume = {55},
	year = {2024},
	note = {Publisher: Pensoft Publishers},
	month = {05/2024},
	pages = {201{\textendash}248},
	abstract = {Multi-proxy analysis (spore-pollen, dinoflagellate cysts, other non-pollen palynomorphs (NPPs), radiocarbon dating and lithology) was performed on marine sediments from three new cores retrieved during the two cruise expeditions on board the Research Vessel {\textquotedblleft}Akademik{\textquotedblright} in 2009 and 2011. The Varna transect comprises three cores extending from the outer shelf, continental slope and deep-water zone. The record spans the last 26000 years (all ages obtained in this study are given in calendar years BP (cal. yrs BP)). The pollen record reveals the spreading of steppe vegetation dominated by Artemisia and Chenopodiaceae, suggesting cold and dry environments during the Late Pleniglacial {\textendash} Oldest Dryas (25903{\textendash}15612 cal. yrs BP). Stands of Pinus and Quercus reflect warming/humidity increase during the melting pulses (19.2{\textendash}14.5 cal. ka BP) and the Late Glacial interstadials B{\o}lling and Aller{\o}d. The Younger Dryas (13257{\textendash}11788 cal. yrs BP) coldest and driest environments are clearly demonstrated by the maximum relative abundance of Artemisia and Chenopodiaceae. During the Early Holocene (Preboreal and Boreal chronozones, 11788{\textendash}8004 cal. yrs BP), Quercus appeared as a pioneer species and, along with other temperate deciduous arboreal taxa, formed open deciduous forests as a response to the increased temperature. The rapid expansion of these taxa indicates that they survived in Glacial refugia in the coastal mountains. During the Atlantic chronozone (8004{\textendash}5483 cal. yrs BP), optimal climate conditions (high humidity and increased mean annual temperatures) stimulated the establishment of species-rich mixed temperate deciduous forests. During the Subboreal chronozone (5483{\textendash}2837 cal. yrs BP), Carpinus betulus and Fagus expanded simultaneously and became more important components of mixed oak forests and probably also formed separate communities. During the Subatlantic chronozone (2837 cal. yrs BP to pre-industrial time), climate-driven changes (an increase of humidity and a cooling of the climate) appear to be the main drivers of the specific vegetation succession expressed by increased abundance of Alnus, Fraxinus excelsior and Salix along with lianas, suggesting formation of flooded riparian forests (so called {\textquoteleft}Longoz{\textquoteright}) lining the river valleys along the Black Sea coast. The first indicators of farming and other human activities have been recorded since 7074 cal. yrs BP. The dinoflagellate cyst (dinocyst) assemblages have been analysed to assess the changes in the Black Sea environment over the last 26000 years in terms of fluctuation in paleoproduction and surface water conditions related to changes in climate, freshwater input and Mediterranean water intrusion. Two major dinocyst assemblages were distinguished: one dominated by stenohaline freshwater/brackish-water species and a successive one dominated by euryhaline marine species. The changes in the composition of the assemblages occurred at 7668 cal. yrs BP. The abrupt decrease of stenohaline freshwater/brackish-water species Pyxidinopsis psilata and Spiniferites cruciformis was followed upwards by a gradual increase in euryhaline marine species, such as Lingulodinium machaerophorum, Spiniferites belerius, S. bentorii and acritarch Cymatiosphaera globulosa. The first occurrence of euryhaline marine species took place synchronously with the onset of sapropel deposition. Modern marine conditions were established after 6417 cal yrs BP when an abundance of Mediterranean-related species, such as Operculodinium centrocarpum and Spiniferites mirabilis, along with other heterotrophic species, occurred. After the stable cold and dry environment during the Last Glacial Maximum, the phytoplankton record of core AKAD 11-17 shows that Pediastrum boryanum var. boryanum has a cyclical abundance associated with the deposition of four red-brown clay layers between 19.2 and 14.5 cal. ka BP. This event is associated with the major melting phase of European Ice drained by the Danube and Dnieper Rivers in response to climate warming observed after the end of the Last Glacial Maximum. During the Early Holocene, P. psilata, characterised by a preference to warmer temperatures, demonstrates its ecological optimum for growth concerning SST reaching maximum relative abundance of 94\% between 11072 and 8638 cal. yrs BP. This maximum was interrupted by an abrupt significant short-term decrease in the relative abundance of P. psilata centred between 8500 and 8300 cal. yrs BP reflecting cold conditions similar to those of Younger Dryas. This finding, also confirmed by the rapid significant decrease of arboreal pollen, particularly of Quercus in the same studied core, is considered a regional expression of the well-known {\textquoteleft}8.2 ka cold event{\textquoteright} which is commonly linked to a meltwater-related perturbation of the Atlantic Meridional Overturning Circulation (AMOC) and associated collapse of oceanic northward heat transport. Our fossil pollen and dinocyst data confirm that the high amplitude temperature anomaly associated with {\textquoteleft}the 8.2 ka cold event{\textquoteright} may have also occurred in south-eastern Europe, at lower latitudes of the western Black Sea coastal area, most probably due to atmospheric transition and/or river discharge.},
	issn = {1314-3301},
	doi = {10.3897/natureconservation.55.121842},
	url = {https://natureconservation.pensoft.net/article/121842/},
	author = {Filipova-Marinova, Mariana and Pavlov, Danail and Slavova, Krasimira}
}
@article {hernandez_puzzling_2024,
	title = {Puzzling parrotfishes: Radiocarbon age validation and updated longevity estimates for western Atlantic species in support of sustainable fisheries management},
	journal = {PLOS ONE},
	volume = {19},
	number = {5},
	year = {2024},
	note = {Publisher: Public Library of Science},
	month = {05/2024},
	pages = {e0302854},
	abstract = {For management efforts to succeed in Caribbean fisheries, local fishers must support and be willing to comply with fishing regulations. This is more likely when fishers are included in a stock assessment process that utilizes robust scientific evidence, collected in collaboration with fishers, to evaluate the health of fish stocks. Caribbean parrotfishes are important contributors to coral reef ecosystem health while also contributing to local fisheries. Scientifically robust stock assessments require regional species-specific information on age-based key life history parameters, derived from fish age estimates. Evaluation of the accuracy of age estimation methods for fish species is a critical initial step in managing species for long-term sustainable harvest. The current study resulted from a collaborative research program between fish biologists and local fishers investigating age, growth, and reproductive biology of the seven parrotfish species landed in U.S. Caribbean fisheries; specifically, we validated age estimation for stoplight parrotfish Sparisoma viride and queen parrotfish Scarus vetula. This is the first study to directly validate age estimation for any parrotfish species through analysis of Δ14C from eye lens cores. Our age estimation validation results show that enumeration of opaque zones from thin sections of sagittal otoliths for a Sparisoma and a Scarus species provides accurate age estimates. The oldest stoplight parrotfish and queen parrotfish in the Δ14C age estimation validation series were 14 y and 16 y; while the oldest stoplight parrotfish and queen parrotfish we aged to-date using the Δ14C validated age estimation method were 20 y and 21 y, respectively. Fish longevity (maximum age attained/life span) is a key life history parameter used for estimation of natural mortality, survivorship, and lifetime reproductive output. Past reviews on parrotfishes from the Pacific and Atlantic concluded that most Caribbean/western Atlantic parrotfish species are relatively short-lived with estimated maximum ages ranging from 3{\textendash}9 y. However, information from our collaborative research in the U.S. Caribbean combined with recently published age estimates for Brazilian parrotfish species indicate that many western Atlantic parrotfishes are relatively long-lived with several species attaining maximum ages in excess of 20 y.},
	keywords = {Caribbean, coral reefs, Eye lens, Fish biology, Fisheries, Marine fish, Otolith, Spawning},
	issn = {1932-6203},
	doi = {10.1371/journal.pone.0302854},
	url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302854},
	author = {Hernandez, Jesus M. Rivera and Shervette, Virginia R.}
}
@article {liu_pre-aged_2023,
	title = {Pre-aged terrigenous organic carbon biases ocean ventilation-age reconstructions in the North Atlantic},
	journal = {Nature Communications},
	volume = {14},
	number = {1},
	year = {2023},
	note = {Number: 1 Publisher: Nature Publishing Group},
	month = {06/2023},
	abstract = {Changes in ocean ventilation have been pivotal in regulating carbon sequestration and release on centennial to millennial timescales. However, paleoceanographic reconstructions documenting changes in deep-ocean ventilation using 14C dating, may bear multidimensional explanations, obfuscating the roles of ocean ventilation played on climate evolution. Here, we show that previously inferred poorly ventilated conditions in the North Atlantic were linked to enhanced pre-aged organic carbon (OC) input during Heinrich Stadial 1 (HS1). The 14C age of sedimentary OC was approximately 13,345 {\textpm} 692 years older than the coeval foraminifera in the central North Atlantic during HS1, which is coupled to a ventilation age of 5,169 {\textpm} 660 years. Old OC was mainly of terrigenous origin and exported to the North Atlantic by ice-rafting. Remineralization of old terrigenous OC in the ocean may have contributed to, at least in part, the anomalously old ventilation ages reported for the high-latitude North Atlantic during HS1.},
	keywords = {Carbon cycle, Marine chemistry, Palaeoceanography},
	issn = {2041-1723},
	doi = {10.1038/s41467-023-39490-6},
	url = {https://www.nature.com/articles/s41467-023-39490-6},
	author = {Liu, Jingyu and Wang, Yipeng and Jaccard, Samuel L. and Wang, Nan and Gong, Xun and Fang, Nianqiao and Bao, Rui}
}
@article {2961,
	title = {Persistence of old soil carbon under changing climate: The role of mineral-organic matter interactions},
	journal = {Chemical Geology},
	volume = {587},
	year = {2022},
	month = {Jan-01-2022},
	pages = {120629},
	abstract = {Globally, soils store between 1500 and 2800 Pg of organic carbon (OC). The physical and chemical stability of these terrestrial soil carbon stores under plausible climate change scenarios is unclear. Soil organic carbon (SOC), especially in volcanic soils, is stabilized through mineral matrix interactions. How susceptible are these mineral-organic matter interactions to environmental change? Here we present a study of SOC age along a climate gradient of andisols from Kohala volcano on the Island of Hawai{\textquoteright}i. We measure carbon isotope composition (14C/12C, 13C/12C) in bulk samples and extracted biomarkers for 4{\textendash}8 horizons of 15 soil profiles to understand variability in SOC age and persistence across incremental differences in mean annual precipitation. Bulk OC in the subsoil has radiocarbon fraction modern (Fm) values as low as 0.28 to 0.16 (~10,160 to ~14,630 conventional radiocarbon years). Coexisting plant-derived long chain fatty acids (LCFAs) are older, over 22,500 yrs. (Fm = 0.060), implying that these are among the most stable compounds in the soil, while corresponding shorter-chain (C16) fatty acids are much younger, consistent with an origin from active microbial communities assimilating young OC percolating from surface horizons. There is significant Fe loss at higher mean annual precipitation (MAP) (>2200 mm yr-1) sites associated with episodic soil saturation and microbial Fe reduction. \%OC is higher at these sites, consistent with the expectation that saturated conditions promote SOC storage. However, in these higher MAP sites iron depletion is associated with much younger bulk SOC and LCFAs 14C ages (~2900 14C years) than at equivalent sample depths in sites that retain most Fe (~14,200 14C years). The remaining mineral matrix consists primarily of Si, Al, and Ti as SRO minerals. The data imply that modest increases in precipitation resulting from environmental change at locations near a potential saturation or redox threshold could result in destabilization of Fe-SOC complexes, rendering previously stabilized carbon available for rapid degradation, potentially irreversibly decreasing the size of the old SOC reservoir. The destabilization of an old, persistent Fe-SOC reservoir can decrease SOC storage and ultimately increase the amount of CO2 released to the atmosphere.},
	issn = {00092541},
	doi = {10.1016/j.chemgeo.2021.120629},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0009254121005726},
	author = {Grant, Katherine E. and Galy, Valier V. and Haghipour, Negar and Eglinton, Timothy I. and Derry, Louis A.}
}
@article {2927,
	title = {Permafrost Organic Carbon Turnover and Export Into a High-Arctic Fjord: A Case Study From Svalbard Using Compound-specific C-14 Analysis},
	journal = {Journal of Geophysical Research: Biogeosciences},
	volume = {126},
	year = {2021},
	month = {Jan-03-2021},
	issn = {2169-8953},
	doi = {10.1029/2020JG006008},
	url = {https://apps.webofknowledge.com/InboundService.do?product=WOS\&Func=Frame\&DestFail=http\%3A\%2F\%2Fwww.webofknowledge.com\&SrcApp=search\&SrcAuth=Alerting\&SID=8FcXJjl9GsiAmhuIO65\&customersID=Alerting\&mode=FullRecord\&IsProductCode=Yes\&AlertId=ab9062f8-b111-4f95-},
	author = {Kusch, Stephanie and Rethemeyer, Janet and Ransby, Daniela and Mollenhauer, Gesine}
}
@article {2936,
	title = {Planktic foraminiferal changes in the western Mediterranean Anthropocene},
	journal = {Global and Planetary Change},
	volume = {204},
	year = {2021},
	month = {Jan-09-2021},
	pages = {103549},
	issn = {09218181},
	doi = {10.1016/j.gloplacha.2021.103549},
	url = {https://www.webofscience.com/wos/woscc/full-record/WOS:000687257000005?AlertId=ab9062f8-b111-4f95-a2b8-66e7afac0471\&SID=7DFRqn1B6A3SRDPNEE8},
	author = {Pallacks, Sven and Ziveri, Patrizia and Martrat, Bel{\'e}n and Mortyn, P. Graham and Grelaud, Michael and Schiebel, Ralf and Incarbona, Alessandro and Garcia-Orellana, Jordi and Anglada-Ortiz, Griselda}
}
@article {3003,
	title = {Plastic Formulation is an Emerging Control of Its Photochemical Fate in the Ocean},
	journal = {Environmental Science \& Technology},
	volume = {55},
	year = {2021},
	month = {09/2021},
	pages = {12383 - 12392},
	abstract = {Sunlight exposure is a control of long-term plastic fate in the environment that converts plastic into oxygenated products spanning the polymer, dissolved, and gas phases. However, our understanding of how plastic formulation influences the amount and composition of these photoproducts remains incomplete. Here, we characterized the initial formulations and resulting dissolved photoproducts of four single-use consumer polyethylene (PE) bags from major retailers and one pure PE film. Consumer PE bags contained 15{\textendash}36\% inorganic additives, primarily calcium carbonate (13{\textendash}34\%) and titanium dioxide (TiO2; 1{\textendash}2\%). Sunlight exposure consistently increased production of dissolved organic carbon (DOC) relative to leaching in the dark (3- to 80-fold). All consumer PE bags produced more DOC during sunlight exposure than the pure PE (1.2- to 2.0-fold). The DOC leached after sunlight exposure increasingly reflected the 13C and 14C isotopic composition of the plastic. Ultrahigh resolution Fourier transform ion cyclotron resonance mass spectrometry revealed that sunlight exposure substantially increased the number of DOC formulas detected (1.1- to 50-fold). TiO2-containing bags photochemically degraded into the most compositionally similar DOC, with 68{\textendash}94\% of photoproduced formulas in common with at least one other TiO2-containing bag. Conversely, only 28\% of photoproduced formulas from the pure PE were detected in photoproduced DOC from the consumer PE. Overall, these findings suggest that plastic formulation, especially TiO2, plays a determining role in the amount and composition of DOC generated by sunlight. Consequently, studies on pure, unweathered polymers may not accurately represent the fates and impacts of the plastics entering the ocean.},
	isbn = {0013-936X},
	doi = {10.1021/acs.est.1c02272},
	url = {https://doi.org/10.1021/acs.est.1c02272},
	author = {Walsh, Anna N. and Reddy, Christopher M. and Niles, Sydney F. and McKenna, Amy M. and Hansel, Colleen M. and Ward, Collin P.}
}
@article {2928,
	title = {The Preservation of Climate-Driven Landslide Dams in Western Oregon},
	journal = {Journal of Geophysical Research: Earth Surface},
	volume = {126},
	year = {2021},
	month = {Jan-04-2021},
	abstract = {Bedrock landsliding, including the formation of landslide dams, is a predominant geomorphic process in steep landscapes. Clarifying the importance of hydrologic and seismic mechanisms for triggering deep-seated landslides remains an ongoing effort, and formulation of geomorphic metrics that predict dam preservation is crucial for quantifying secondary landslide hazards. Here, we identify >200 landslide-dammed lakes in western Oregon and utilize dendrochronology and enhanced C-14 dating ("wiggle matching") of "ghost forests" to establish slope failure timing at 20 sites. Our dated landslide dataset reveals bedrock landsliding has been common since the last Cascadia Subduction Zone earthquake in January 1700 AD. Our study does not reveal landslides that date to 1700 AD. Rather, we observe temporal clustering of at least four landslides in the winter of 1889/1890 AD, coincident with a series of atmospheric rivers that generated one of the largest regionally recorded floods. We use topographic and field analyses to assess the relation between dam preservation and topographic characteristics of the impounded valleys. In contrast to previous studies, we do not observe systematic scaling between dam size and upstream drainage area, though dam stability indices for our sites correspond with "stable" dams elsewhere. Notably, we observe that dams are preferentially preserved at drainage areas of similar to 1.5 to 13 km(2) and valley widths of similar to 25 to 80 m, which may reflect the reduced downstream influence of debris flows and the accumulation of mature conifer trees upstream from landslide-dammed lake outlets. We suggest that wood accumulation upstream of landslide dams tempers large stream discharges, thus inhibiting dam incision.},
	issn = {2169-9003},
	doi = {10.1029/2020JF005908},
	url = {https://apps.webofknowledge.com/InboundService.do?product=WOS\&Func=Frame\&DestFail=http\%3A\%2F\%2Fwww.webofknowledge.com\&SrcApp=search\&SrcAuth=Alerting\&SID=8CKLYC3GhfgHnhOJ3m1\&customersID=Alerting\&mode=FullRecord\&IsProductCode=Yes\&AlertId=4d48b20a-7d27-4fa2-},
	author = {Struble, William T. and Roering, Joshua J. and Burns, William J. and Calhoun, Nancy C. and Wetherell, Logan R. and Black, Bryan A.}
}
@article {2858,
	title = {Paleoenvironmental context for the Late Pleistocene appearance of Didymosphenia in a North American alpine lake},
	journal = {Aquatic Sciences},
	volume = {82},
	year = {2020},
	month = {Jan-01-2020},
	abstract = {The nuisance species Didymosphenia geminata is thought to have been spread by humans across North and South America and New Zealand. This diatom is of interest for its ability to form thick benthic mats in streams, altering ecosystem properties. Little is known, however, about its historic distribution and the parameters that are associated with its growth in absence of human influence. Although it is considered to be native to Arctic regions, its status at lower latitudes is uncertain. We measured the concentration of D. geminata cells in a sediment core from Beauty Lake, WY, a record that dates back to the Late Pleistocene. From approximately 11,233{\textendash}8750 years before present (ybp), a Didymosphenia maximum persisted, with peak concentrations of 3774{\textpm}20 valves/mg dry sediment (9985 ybp). The period corresponded to low flux of Al, Fe, and P within the sediments, supporting the importance of low P in controlling distribution. Furthermore, we demonstrate that D. geminata arrived in Beauty Lake shortly after deglaciation of the watershed. This species arrived without the aid of human introduction, implying an inherent ability for dispersal. We also examined the sediment record of nearby Yellowstone Lake, WY for the presence of D. geminata during the same time interval, but cells were not detected. The Yellowstone caldera is composed of rhyolite, a rock rich in silica (Si) and modest amounts of P. We conclude that both watersheds were exposed to the potential colonization by D. geminata, but just as the North Island of New Zealand has not been able to support this diatom because of P concentrations exceeding a threshold, the Yellowstone watershed is not able to support it either.},
	issn = {1015-1621},
	doi = {10.1007/s00027-019-0681-9},
	url = {http://link.springer.com/10.1007/s00027-019-0681-9},
	author = {Spaulding, Sarah A. and Stone, Jeffery R. and Norton, Stephen A. and Nurse, Andrea and Saros, Jasmine E.}
}
@article {2832,
	title = {Permafrost Hydrology Drives the Assimilation of Old Carbon by Stream Food Webs in the Arctic},
	journal = {Ecosystems},
	volume = {23},
	year = {2020},
	month = {Jan-03-2020},
	pages = {435 - 453},
	abstract = {Permafrost thaw in the Arctic is mobilizing old carbon (C) from soils to aquatic ecosystems and the atmosphere. Little is known, however, about the assimilation of old C by aquatic food webs in Arctic watersheds. Here, we used C isotopes (δ13C, Δ14C) to quantify C assimilation by biota across 12 streams in arctic Alaska. Streams spanned watersheds with varying permafrost hydrology, from ice-poor bedrock to ice-rich loess (that is, yedoma). We measured isotopic content of (1) C sources including dissolved organic C (DOC), dissolved inorganic C (DIC), and soil C, and (2) stream biota, including benthic biofilm and macroinvertebrates, and resident fish species (Arctic Grayling (Thymallus arcticus) and Dolly Varden (Salvelinus malma)). Findings document the assimilation of old C by stream biota, with depleted Δ14C values observed at multiple trophic levels, including benthic biofilm (14C ages = 5255 to 265 years before present (y BP)), macroinvertebrates (4490 y BP to modern), and fish (3195 y BP to modern). Mixing model results indicate that DOC and DIC contribute to benthic biofilm composition, with relative contributions differing across streams draining ice-poor and ice-rich terrain. DOC originates primarily from old terrestrial C sources, including deep peat horizons (39{\textendash}47\%; 530 y BP) and near-surface permafrost (12{\textendash}19\%; 5490 y BP). DOC also accounts for approximately half of fish isotopic composition. Analyses suggest that as the contribution of old C to fish increases, fish growth and nutritional status decline. We anticipate increases in old DOC delivery to streams under projected warming, which may further alter food web function in Arctic watersheds.},
	issn = {1432-9840},
	doi = {10.1007/s10021-019-00413-6},
	url = {https://link.springer.com/article/10.1007\%2Fs10021-019-00413-6},
	author = {O{\textquoteright}Donnell, Jonathan A. and Carey, Michael P. and Koch, Joshua C. and Xu, Xiaomei and Poulin, Brett A. and Walker, Jennifer and Zimmerman, Christian E.}
}
@article {2903,
	title = {Provenance of terrigenous sediments in the central Bay of Bengal and its relationship to climate changes since 25 ka},
	journal = {Progress in Earth and Planetary Science},
	volume = {7},
	year = {2020},
	month = {Jan-12-2020},
	abstract = {Lithogenic grain-size, geochemical elements of core sediments from the central Bay of Bengal (BoB) were analyzed to identify sediment provenance and explore the regional {\textquotedblleft}source-sink{\textquotedblright} processes since 25 ka. Based on the geochemical compositions of core BoB-88, relative contributions of three end-member sources (Himalayan, Myanmar, Indian Peninsula) were calculated and support the general understanding that Himalayan sources were dominant since the last glacial period, which could reach 70\% on average in our study. However, sediments from the Indian Peninsula and Myanmar also contributed nonnegligible materials to the central BoB since 25 ka, especially the former shows an obvious increase since 7.5 ka, which was neglected in the previous studies. To trace the sedimentary processes of different provenance terrigenous materials and reveal their response to climate changes, four typical stages with obvious provenance percent variation, including the Last Glacial Maximum period (LGM), Heinrich 1 (H1), Early Holocene Climate Optimum (EHCO), and mid-late Holocene period, were highlighted and discussed. Sea-level change played a dominant role in the glacial-interglacial scale by controlling the transition of deposition center between the shelf/subaquatic delta and the Bengal Fan, especially for sediment from the Himalayan source, exerting influence on contributions from different provenance end-members between the Holocene and the last glacial period. The opposite directions of the southwest and northeast monsoon current in the BoB have a significant influence on the transfer of the Indian Peninsula and Myanmar materials to the studied core, which led to an increase of up to 11\% than the average of the Indian Peninsula and a decrease of up to 9\% than the average of the Myanmar source during the Holocene. The balance between sea level (limited transport to the deep sea) and ISM (improved erosion production and output to the BoB) during the mid-late Holocene period maintained the stability of Himalayan source percent. Due to the control of the ISM variations, the Himalayan source showed a decrease of up to 20\% and 21\% than average during the LGM and H1 period, respectively, and an increase of up to 14\% than average during the EHCO. The Myanmar source exhibited fluctuations around the average value during the LGM period, but an obvious increase of up to 21\% during the H1 period and a decrease up to 8\% during the EHCO, while the Indian Peninsula source percent showed little variations during the LGM and H1, but a decrease of up to 6\% during the EHCO. Obvious 1/4 processional and millennial periodic changes (5.0 kyr and 1.1 kyr) of contribution proportions from three end-members provide additional evidences for the climate control on the regional source-sink processes and proved the controlled mechanisms of the orbital parameters and possible influence from the solar activity on millennial scales.},
	doi = {10.1186/s40645-020-00328-0},
	url = {https://progearthplanetsci.springeropen.com/articles/10.1186/s40645-020-00328-0},
	author = {Li, Jingrui and Liu, Shengfa and Shi, Xuefa and Chen, Min-Te and Zhang, Hui and Zhu, Aimei and Cui, Jingjing and Khokiattiwong, Somkiat and Kornkanitnan, Narumol}
}
@article {2701,
	title = {Pacific climate influences on ocean conditions and extreme shell growth events in the Northwestern Atlantic (Gulf of Maine)},
	journal = {Climate Dynamics},
	volume = {52},
	year = {2019},
	month = {Jan-06-2019},
	pages = {6339 - 6356},
	abstract = {The Gulf of Maine is undergoing rapid environmental and ecological changes, yet our spatial and temporal understanding of the climatic and hydrographic variability in this region, including extreme events, is limited and biased to recent decades. In this study, we utilize a highly replicated, multi-century master shell growth chronology derived from the annual increments formed in the shells of the long-lived bivalve Arctica islandica collected in 38 m from the central coastal region in the Gulf of Maine. Our results indicate that shell growth is highly synchronous and inversely related to local seawater temperatures. Using composite analyses of extreme shell growth events from CE 1900 to 2013, we extend our understanding of the factors driving oceanic variability and shell growth in the Northwestern Atlantic back to CE 1761. We suggest that extreme shell growth events are primarily controlled by Gulf of Maine sea surface temperature (SST) and stratification conditions, which in turn appear to be largely influenced by SST patterns in the Pacific Ocean through their influence on mid-latitude atmospheric circulation patterns and the location of the eddy-driven jet. The large-scale jet dynamics during these extreme years manifest as precipitation and moisture transport anomalies and regional SST conditions in the Gulf of Maine that either enhance or inhibit shell growth. Pacific climate variability is thus an important, yet understudied, influence on Gulf of Maine ocean conditions.},
	issn = {0930-7575},
	doi = {10.1007/s00382-018-4513-8},
	url = {https://link.springer.com/article/10.1007/s00382-018-4513-8},
	author = {Wanamaker, Alan D. and Griffin, Shelly M. and Ummenhofer, Caroline C. and Whitney, Nina M. and Black, Bryan and Parfitt, Rhys and Lower-Spies, Erin E. and Introne, Douglas and Kreutz, Karl J.}
}
@article {2911,
	title = {Paleoseismic Investigation of the Levan and Fayette Segments of the Wasatch Fault Zone, Juab and Sanpete Counties, Utah},
	year = {2019},
	month = {12/2019},
	institution = {Utah Geological Survey},
	url = {https://geodata.geology.utah.gov/pages/view.php?ref=62721},
	author = {McDonald, Greg N. and Hiscock, Adam I. and Hylland, Micheal D.}
}
@article {2641,
	title = {Petrocarbon evolution: Ramped pyrolysis/oxidation and isotopic studies of contaminated oil sediments from the Deepwater Horizon oil spill in the Gulf of Mexico},
	journal = {PLOS ONE},
	volume = {14},
	year = {2019},
	month = {Apr-02-2021},
	pages = {e0212433},
	abstract = {Hydrocarbons released during the Deepwater Horizon (DWH) oil spill weathered due to exposure to oxygen, light, and microbes. During weathering, the hydrocarbons{\textquoteright} reactivity and lability was altered, but it remained identifiable as "petrocarbon" due to its retention of the distinctive isotope signatures (C-14 and C-13) of petroleum. Relative to the initial estimates of the quantity of oil-residue deposited in Gulf sediments based on 2010-2011 data, the overall coverage and quantity of the fossil carbon on the seafloor has been attenuated. To analyze recovery of oil contaminated deep-sea sediments in the northern Gulf of Mexico we tracked the carbon isotopic composition (C-13 and C-14, radiocarbon) of bulk sedimentary organic carbon through time at 4 sites. Using ramped pyrolysis/oxidation, we determined the thermochemical stability of sediment organic matter at 5 sites, two of these in time series. There were clear differences between crude oil (which decomposed at a lower temperature during ramped oxidation), natural hydrocarbon seep sediment (decomposing at a higher temperature; Delta C-14 = -189 parts per thousand) and our control site (decomposing at a moderate temperature; Delta C-14 = -189 parts per thousand), in both the stability (ability to withstand ramped temperatures in oxic conditions) and carbon isotope signatures. We observed recovery toward our control site bulk Delta C-14 composition at sites further from the wellhead in similar to 4 years, whereas sites in closer proximity had longer recovery times. The thermographs also indicated temporal changes in the composition of contaminated sediment, with shifts towards higher temperature CO2 evolution over time at a site near the wellhead, and loss of higher temperature CO2 peaks at a more distant site.},
	keywords = {C-14 ANALYSES; MARINE SNOW, degradation, fractionation, organic-matter, POLYCYCLIC AROMATIC-HYDROCARBONS; MICROBIAL COMMUNITY RESPONSE, radiocarbon, STABLE CARBON, surface sediments},
	doi = {10.1371/journal.pone.0212433},
	url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212433},
	author = {Rogers, Kelsey L. and Bosman, Samantha H. and Lardie-Gaylord, Mary and McNichol, Ann and Rosenheim, Brad E. and Montoya, Joseph P. and Chanton, Jeffrey P.},
	editor = {Cooper, Lee W.}
}
@article {2618,
	title = {Paleoceanography of northeastern Fram Strait since the last glacial maximum: Palynological evidence of large amplitude changes},
	journal = {Quaternary Science Reviews},
	volume = {195},
	year = {2018},
	month = {Jan-09-2018},
	pages = {133 - 152},
	abstract = {Sea-surface conditions in northeastern Fram Strait since the last glacial maximum (LGM) were reconstructed from cores MSM5/5-712-2 and PS2863/1-2 based on palynological assemblages, ecological preferences of dinocysts and application of the modern analog technique. Dinocyst in LGM sediments are sparse, but their assemblages reflect mild summer conditions. Given the regional context and evidence from other tracers, the dinocyst assemblages of the LGM could relate to regional fluxes of dinocysts during exceptional mild summers. From 19 to 14.7 ka, dinocyst data suggest very cold conditions with extensive sea-ice cover, while abundant reworked palynomorphs indicate intense glacial erosion. An abrupt transition at 14.7-14.5 ka was marked by a peak in summer temperatures coinciding with a rapidly deposited sediment layer related to a regional meltwater plume event in western Svalbard. From 14.7 to 12.6 ka, large seasonal temperature contrasts with mild summers and cold winters together with low salinity indicate continuous melting of the
Svalbard Barents Sea ice sheet fostered by warm climate. At 12.6 ka, the regional onset of the Younger Dryas was marked by cooling and increased salinity. On a regional scale, the 12.6-12 ka interval corresponds to an important transition involving enhanced circulation of Arctic waters around Svalbard and establishment of coastal fronts along its northern and western margins. Modern-like oceanic conditions with relatively high salinity and low seasonal temperature contrast developed at about 7.6 ka. Since then, a slight cooling is observed, especially in winter. This study offers a comprehensive picture of the deglacial phases in eastern Fram Strait with unique data on the sea surface salinity, which controls surface water stratification and plays an important role in ocean circulation. (C) 2018 Elsevier Ltd. All rights reserved.
},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2018.06.030},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0277379117303979https://api.elsevier.com/content/article/PII:S0277379117303979?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0277379117303979?httpAccept=text/plain},
	author = {Falardeau, Jade and de Vernal, Anne and Spielhagen, Robert F.}
}
@article {2855,
	title = {Paleomagnetism and rock magnetism from sediments along a continental shelf-to-slope transect in the NW Barents Sea: Implications for geomagnetic and depositional changes during the past 15 thousand years},
	journal = {Global and Planetary Change},
	volume = {160},
	year = {2018},
	month = {Jan-01-2018},
	pages = {10 - 27},
	abstract = {Paleomagnetic and rock magnetic data were measured on glaciomarine silty-clay successions along an E-W sediment-core transect across the continental shelf and slope of the Kveithola paleo-ice stream system (south of Svalbard, north-western Barents Sea), representing a stratigraphic interval spanning the last deglaciation and the Holocene.

The records indicate that magnetite is the main magnetic mineral and that magnetic minerals are distinctly less abundant on the shelf than at the continental slope. The paleomagnetic properties allow for the reconstruction of a well-defined characteristic remanent magnetization (ChRM) throughout the sedimentary successions. The stratigraphic trends of rock magnetic and paleomagnetic parameters are used for a shelf-slope core correlation and sediment facies analysis is applied for depositional processes reconstruction. The new paleomagnetic records compare to the PSV and RPI variation predicted for the core sites by a simulation using the global geomagnetic field variation models SHA.DIF.14k and CALS7K.2 and closest PSV and RPI regional stack curves. The elaborated dataset, corroborated by available 14C ages, provides a fundamental chronological framework to constrain the coupling of shelf-slope sedimentary processes and environmental changes in the NW Barents Sea region during and after deglaciation.},
	keywords = {Barents Sea, Kveithola glacial trough, Paleomagnetism, Rock magnetism},
	issn = {09218181},
	doi = {10.1016/j.gloplacha.2017.11.007},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0921818117303077},
	author = {Caricchi, C. and Lucchi, R.G. and Sagnotti, L. and Macr{\`I}, P. and Morigi, C. and Melis, R. and Caffau, M. and Rebesco, M. and Hanebuth, T.J.J.}
}
@article {2621,
	title = {Paleoseismic Results from the Alpine Site, Wasatch Fault Zone: Timing and Displacement Data for Six Holocene Earthquakes at the Salt Lake City{\textendash}Provo Segment Boundary},
	journal = {Bulletin of the Seismological Society of America},
	year = {2018},
	month = {Feb-10-2018},
	abstract = {To improve the characterization of Holocene earthquakes on the Wasatch fault zone (WFZ), we conducted light detection and ranging (lidar)-based neotectonic mapping and excavated a paleoseismic trench across an 8-m-high fault scarp near Alpine, Utah, located <1  km south of the boundary between the Salt Lake City and Provo segments (SLCS and PS). We document evidence for six paleoearthquakes (AL6{\textendash}AL1) from scarp-derived colluvial wedges and crosscutting relations. A ground-penetrating radar survey across the scarp resolved fault-zone width, but not paleoearthquake stratigraphy. Bayesian (OxCal) modeling of 13 radiocarbon and 13 optically stimulated luminescence ages indicates that six earthquakes occurred \~{}6.2{\textendash}0.4  ka. Interseismic recurrence ranges from 0.2 to 1.8 ky (mean 1.2 ky). We estimate 6.5{\textpm}0.7  m of cumulative vertical tectonic displacement across the >=14-m-wide fault zone used near-field observations of scarp-derived colluvial-wedge thicknesses, antithetic faulting, and graben backtilting. This is similar to our independent estimate of 6.5{\textpm}0.5  m using far-field observations of the offset ground surface and correlation of alluvial-fan stratigraphy across the WFZ. These results suggest that colluvial-wedge thickness at the Alpine site approximates one-half the original west-facing fault scarp height. Per-event vertical displacements range from 0.8 to 1.2 m (mean 1.1 m), which we use to estimate surface rupture lengths that may exceed 50 km from earthquakes as large as moment magnitude (Mw) \~{}7.0. The late Holocene average vertical slip rate is 0.9  mm/yr (0.7{\textendash}1.2  mm/yr range). Earthquake frequency has increased in the past \~{}1  ky, whereas displacement per event has been similar for the past \~{}6  ky, suggesting that strain accumulation is not the sole factor that controls the frequency and size of earthquakes at the SLCS{\textendash}PS segment boundary. These findings can be used for a more nuanced characterization of earthquakes at the SLCS{\textendash}PS boundary and improve earthquake hazard assessments along the Wasatch Front.},
	issn = {0037-1106},
	doi = {10.1785/0120160358},
	url = {https://pubs.geoscienceworld.org/ssa/bssa/article/556954/Paleoseismic-Results-from-the-Alpine-Site-Wasatch},
	author = {Bennett, S. E. K. and DuRoss, C. B. and Gold, R. D. and Briggs, R. W. and Personius, S. F. and Reitman, N. G. and Devore, J. R. and Hiscock, A. I. and Mahan, S. A. and Gray, H. J. and Gunnarson, S. and Stephenson, W. J. and Pettinger, E. and Odum, J. K.}
}
@book {2733,
	title = {The Potential Impact of Hydrocarbons on Mussels in Port au Port Bay, Newfoundland},
	volume = {81},
	year = {2018},
	pages = {1 - 22},
	publisher = {Elsevier},
	organization = {Elsevier},
	abstract = {Since 2012, the scallop fishery in Port au Port Bay, Newfoundland, Canada has experienced a drastic decline, while no decline was observed in adjacent St. George{\textquoteright}s Bay. Local fishermen have raised concerns about an abandoned oil exploration well in the Port au Port Bay. This study investigated the potential impact of petroleum hydrocarbons on sediments and blue mussels [Mytilus edulis] (a proxy organism for scallops) in the area. Sediments from both bays were characterized for their hydrocarbons and compared to potential petroleum hydrocarbon sources. Mussels were analysed for health indices and their 14C content. The results showed that the concentration of hydrocarbons found in the sediments of the fishing ground was within the range of unpolluted marine sediments and that the hydrocarbons present were likely from a mixture of sources. The health indices of the mussels in Port au Port Bay were similar to the health indices of mussels in St. George{\textquoteright}s Bay and the 14C content of the mussels from both bays was modern. These data suggest that the Port au Port fishing ground was not solely contaminated from crude oil leaking from an oil exploration well, that the mussels were not contaminated with petroleum hydrocarbons, and that Port au Port mussels were just as healthy as the mussels of St. George{\textquoteright}s Bay. Therefore, whatever caused the scallop decline was most likely scallop- and bay-specific. During this study a fast and efficient method for extracting petroleum hydrocarbons from sediment using accelerated solvent extraction with integrated silica gel was developed.},
	keywords = {Health indices, Hydrocarbon contamination, Mussels, Petroleum, Scallops},
	isbn = {9780128151051},
	issn = {00652881},
	doi = {10.1016/bs.amb.2018.09.003},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S006528811830018Xhttps://api.elsevier.com/content/article/PII:S006528811830018X?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S006528811830018X?httpAccept=text/plain},
	author = {Cook, Melissa C. and May, Adam and Kohl, Lucas and Van Biesen, Geert and Parrish, Christopher C. and Morrill, Penny L.}
}
@article {2686,
	title = {Pronounced summer warming in northwest Greenland during the Holocene and Last Interglacial},
	journal = {Proceedings of the National Academy of Sciences},
	volume = {115},
	year = {2018},
	month = {Jul-06-2019},
	pages = {6357 - 6362},
	abstract = {Projections of future rates of mass loss from the Greenland Ice Sheet are highly uncertain because its sensitivity to warming is unclear. Geologic reconstructions of Quaternary interglacials can illustrate how the ice sheet responded during past warm periods, providing insights into ice sheet behavior and important tests for data-model comparisons. However, paleoclimate records from Greenland are limited: Early Holocene peak warmth has been quantified at only a few sites, and terrestrial sedimentary records of prior interglacials are exceptionally rare due to glacial erosion during the last glacial period. Here, we discuss findings from a lacustrine archive that records both the Holocene and the Last Interglacial (LIG) from Greenland, allowing for direct comparison between two interglacials. Sedimentary chironomid assemblages indicate peak July temperatures 4.0 to 7.0 {\textdegree}C warmer than modern during the Early Holocene maximum in summer insolation. Chaoborus and chironomids in LIG sediments indicate July temperatures at least 5.5 to 8.5 {\textdegree}C warmer than modern. These estimates indicate pronounced warming in northwest Greenland during both interglacials. This helps explain dramatic ice sheet thinning at Camp Century in northwest Greenland during the Early Holocene and, for the LIG, aligns with controversial estimates of Eemian warming from ice core data retrieved in northern Greenland. Converging geologic evidence for strong LIG warming is challenging to reconcile with inferred Greenland Ice Sheet extent during the LIG, and the two appear incompatible in many models of ice sheet evolution. An increase in LIG snowfall could help resolve this problem, pointing to the need for hydroclimate reconstructions from the region.},
	issn = {0027-8424},
	doi = {10.1073/pnas.1720420115},
	url = {http://www.pnas.org/lookup/doi/10.1073/pnas.1720420115https://syndication.highwire.org/content/doi/10.1073/pnas.1720420115http://www.pnas.org/syndication/doi/10.1073/pnas.1720420115},
	author = {McFarlin, Jamie M. and Axford, Yarrow and Osburn, Magdalena R. and Kelly, Meredith A. and Osterberg, Erich C. and Farnsworth, Lauren B.}
}
@article {2598,
	title = {Paleohydrology of China Lake basin and the context of early human occupation in the northwestern Mojave Desert, USA},
	journal = {Quaternary Science Reviews},
	volume = {167},
	year = {2017},
	month = {Jan-07-2017},
	pages = {112 - 139},
	abstract = {Considerable prior research has focused on the interconnected pluvial basins of Owens Lake and Searles Lake, resulting in a long record of paleohydrological change in the lower Owens River system. However, the published record is poorly resolved or contradictory for the period encompassing the terminal Pleistocene (22,000 to 11,600 cal BP) and early Holocene (11,600-8200 cal BP). This has resulted in conflicting interpretations about the timing of lacustrine high stands within the intermediate basin of China Lake, which harbors one of the most extensive records of early human occupation in the western Great Basin and California. Here, we report a broad range of radiocarbon-dated paleoenvironmental evidence, including lacustrine deposits and shoreline features, tufa outcrops, and mollusk, ostracode, and fish bone assemblages, as well as spring and other groundwater-related deposits (a.k.a. "black mats") from throughout China Lake basin, its outlet, and inflow drainages. Based on 98 radiocarbon dates, we develop independent evidence for five significant lake-level oscillations between 18,000 and 13,000 cal BP, and document the persistence of groundwater-fed wetlands from the beginning of the Younger Dryas through the early Holocene (12,900-8200 cal BP); including the transition from ground-water fed lake to freshwater marsh between about 13,000 and 12,600 cal BP. Results of this study support and refine existing evidence that shows rapid, high-amplitude oscillations in the water balance of the Owens River system during the terminal Pleistocene, and suggest widespread human use of China Lake basin began during the Younger Dryas.},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2017.04.023},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S027737911630676Xhttp://api.elsevier.com/content/article/PII:S027737911630676X?httpAccept=text/xmlhttp://api.elsevier.com/content/article/PII:S027737911630676X?httpAccept=text/plain},
	author = {Rosenthal, Jeffrey S. and Meyer, Jack and Palacios-Fest, Manuel R. and Young, D. Craig and Ugan, Andrew and Byrd, Brian F. and Gobalet, Ken and Giacomo, Jason}
}
@article {2880,
	title = {The perfect storm: climate change and ancient Maya response in the Puuc Hills region of Yucat{\'a}nAbstract},
	journal = {Antiquity},
	volume = {91},
	year = {2017},
	month = {Jan-04-2017},
	pages = {490 - 509},
	abstract = {Climatic fluctuation is often cited as a major factor in the collapse of Maya civilisation during the Terminal Classic Period (e.g. Luzzadder-Beach et al. 2016). Evidence of how people dealt or failed to deal with it has only recently become a more widespread focus for archaeologists. Investigations at Xcoch in the Puuc Hills show the various ways in which resident populations sought to manage water stores when faced with a climate prone to drought and other meteorological extremes. The study also presents results from the analysis of nearby speleothem laminae, which indicate that severe episodes of flooding and droughts may have contributed to a collapse in the population around AD 850.},
	keywords = {drought, flooding, Maya, M{\'e}xico, speleothem, Xcoch, Yucat{\'a}n},
	issn = {0003-598X},
	doi = {10.15184/aqy.2016.266},
	url = {https://www.cambridge.org/core/product/identifier/S0003598X16002660/type/journal_article},
	author = {Smyth, Michael P. and Dunning, Nicholas P. and Weaver, Eric M. and van Beynen, Philip and Zapata, David Orteg{\'o}n}
}
@article {2698,
	title = {Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14C Ramped Pyrolysis and Lignin Biomarkers},
	journal = {Geophysical Research Letters},
	volume = {44},
	year = {2017},
	month = {Apr-11-2019},
	pages = {11,491 - 11,500},
	abstract = {The deposition of terrestrial-derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well constrained. Here we utilized a combination of ramped pyrolysis-oxidation radiocarbon analysis (RPO 14C) along with lignin biomarkers, to track the linkages between soils and river and delta sediments. Surface and deep soils showed distinct RPO thermographs which may be related to degradation and organo-mineral interaction. Soil material in the bed load of the river channel was mostly derived from deep old permafrost. Both surface and deep soils were transported and deposited to the coast. Hydrodynamic sorting and barrier island protection played important roles in terrestrial-derived permafrost POC deposition near the coast. On a large scale, ice processes (e.g., ice gauging and strudel scour) and ocean currents controlled the transport and distribution of permafrost POC on the Beaufort Shelf.},
	keywords = {Arctic, carbon cycling, Colville River, Lignin, permafrost, pyrolysis},
	issn = {0094-8276},
	doi = {10.1002/grl.v44.2210.1002/2017GL075543},
	url = {https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075543},
	author = {Zhang, Xiaowen and Bianchi, Thomas S. and Cui, Xingqian and Rosenheim, Brad E. and Ping, Chien-Lu and Hanna, Andrea J. M. and Kanevskiy, Mikhail and Schreiner, Kathryn M. and Allison, Mead A.}
}
@article {Zhao201730,
	title = {Pleistocene iceberg dynamics on the west Svalbard margin: Evidence from bathymetric and sub-bottom profiler data},
	journal = {Quaternary Science Reviews},
	volume = {161},
	year = {2017},
	pages = {30 - 44},
	abstract = {Abstract Large icebergs leave evidence of their drift via ploughing of the seabed, thereby providing a geological record of episodes of calving from thick ice sheets. We interpret large-scale curvilinear depressions on the western Svalbard margin as ploughmarks produced by the keels of icebergs that grounded on the seafloor as they drifted through this area. Iceberg ploughmarks were identified at modern water depths between 300~m and 1000~m and in two distinct stratigraphic units. Combining data from sediment cores with seismic stratigraphy from sub-bottom profiler data suggests that the ploughmarks developed in two phases: (1) during Marine Isotope Stage (MIS) 6; and (2) during \{MIS\} 2, indicating the presence of large drifting icebergs on the western Svalbard margin during both the Late Saalian and Late Weichselian glaciations. Sediment-core data along the western Svalbard margin indicate a sharp increase in mass-transported sediments dated at 23.7~{\textpm}~0.2 ka, consistent with the \{MIS\} 2 age of the younger iceberg-ploughed surface. The ploughmarks are oriented in two main directions: SW-NE and S-N. S-N oriented ploughmarks, which shallow to the north, indicate iceberg drift from the south with a SW{\textendash}NE component marking the zone of splitting of the West Spitsbergen Current (WSC) into the Yermak Slope Current (YSC) and North Spitsbergen Current (NSC). Large \{MIS\} 6 and \{MIS\} 2 icebergs most likely had an Arctic Ocean source. We suggest that these icebergs probably left the Arctic Ocean southward through Fram Strait and circulated within the Norwegian-Greenland Sea before being transported northwards along the Svalbard margin by the WSC. An additional likely source of icebergs to the western Svalbard margin during \{MIS\} 2 was the ice-sheet terminating in the western Barents Sea, from which icebergs drifted northward.},
	keywords = {Pleistocene},
	issn = {0277-3791},
	doi = {http://doi.org/10.1016/j.quascirev.2017.01.019},
	url = {http://www.sciencedirect.com/science/article/pii/S0277379117300860},
	author = {Fang Zhao and Timothy A. Minshull and Anya J. Crocker and Julian A. Dowdeswell and Shiguo Wu and Simon M. Soryal}
}
@article {2862,
	title = {A probabilistic method of assessing carbon accumulation rate at Imnavait Creek Peatland, Arctic Long Term Ecological Research Station, Alaska},
	journal = {Journal of Quaternary Science},
	volume = {32},
	year = {2017},
	month = {Jan-07-2017},
	pages = {579 - 586},
	abstract = {Arctic peatlands are an important part of the global carbon cycle, accumulating atmospheric carbon as organic matter since the Late glacial. Current methods for understanding the changing efficiency of the peatland carbon sink rely on peatlands with an undisturbed stratigraphy. Here we present a method of estimating primary carbon accumulation rate from a site where permafrost processes have either vertically or horizontally translocated nearby carbon-rich sediment out of stratigraphic order. Briefly, our new algorithm estimates the probability of the age of deposition of a random increment of sediment in the core. The method assumes that if sediment age is measured at even depth increments, dates are more likely to occur during intervals of higher accumulation rate and vice versa. Multiplying estimated sedimentation rate by measured carbon density yields carbon accumulation rate. We perform this analysis at the Imnavait Creek Peatland, near the Arctic Long Term Ecological Research network site at Toolik Lake, Alaska. Using classical radiocarbon age modeling, we find unreasonably high rates of carbon accumulation at various Holocene intervals. With our new method, we find accumulation rate changes that are in improved agreement within the context of other sites throughout Alaska and the rest of the Circum-Arctic region.},
	keywords = {carbon accumulation, Imnavait, peatlands, permafrost, radiocarbon, Toolik LTER},
	doi = {10.1002/jqs.2952},
	url = {https://onlinelibrary.wiley.com/doi/10.1002/jqs.2952},
	author = {Nichols, Jonathan E. and Peteet, Dorothy M. and Frolking, Steve and Karavias, John}
}
@book {2837,
	title = {Proceedings of the International Ocean Discovery ProgramExpedition 357 methods},
	year = {2017},
	publisher = {International Ocean Discovery Program},
	organization = {International Ocean Discovery Program},
	doi = {10.14379/iodp.proc.357.102.2017},
	url = {http://publications.iodp.org/proceedings/357/357title.html},
	author = {Fr{\"u}h-Green, G.L. and Orcutt, B.N. and Green, S.L. and Cotterill, C. and Morgan, S. and Akizawa, N. and Bayrakci, G. and Behrmann, J.-H. and Boschi, C. and Brazleton, W.J. and Cannat, M. and Dunkel, K.G. and Escartin, J. and Harris, M. and Herrero-Bervera, E. and Hesse, K. and John, B.E. and Lang, S.Q. and Lilley, M.D. and Liu, H.-Q. and Mayhew, L.E. and McCaig, A.M. and Menez, B. and Morono, Y. and Qu{\'e}m{\'e}neur, M. and Roum{\'e}jon, S. and Sandaruwan Ratnayake, A. and Schrenk, M.O. and Schwarzenbach, E.M. and Twing, K.I. and Weis, D. and Whattham, S.A. and Williams, M. and Zhao, R.},
	editor = {Fr{\"u}h-Green, G.L. and Orcutt, B.N. and Green, S.L. and Cotterill, C.}
}
@article {Carbonara2016136,
	title = {Palaeoclimatic changes in Kveithola, Svalbard, during the Late Pleistocene deglaciation and Holocene: Evidences from microfossil and sedimentary records},
	journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},
	volume = {463},
	year = {2016},
	pages = {136 - 149},
	abstract = {Abstract Climate changes are reflected in the Arctic ecosystem history over different timescales. We use a multi proxy-based approach for palaeoenvironmental and palaeoclimatic reconstructions, conducted on sediment cores, compared with summer insolation and Greenland ice core δ18O data in order to establish a framework for climate changes from Late Pleistocene to late Holocene. Our dataset includes the results compiled from a sediment core, collected on the middle slope of the Kveithola Trough Mouth Fan (South of Svalbard) during the \{CORIBAR\} cruise (2013). The studied core presents remarkable lithological and magnetic susceptibility similarities with cores recovered in the same area during the \{SVAIS\} (2007) and the OGS-EGLACOM cruise (2008), allowing the construction of the age model. The results indicate that during the last 14.5 cal ky \{BP\} advances and retreats of the Svalbard Barents Sea Ice Sheet were strictly linked to the interplay of Atlantic and Arctic water inflows to the study area. During the deglaciation, from the Last Glacial Maximum to the onset of the Holocene, the climate underwent a series of abrupt changes including the B{\o}lling-Aller{\o}d warm interstadial and the Younger Dryas cold event. During the early Holocene, the investigated area was dominated by enhanced warm Atlantic water inflow, which was concomitant with summer insolation increase, characterizing the Holocene Thermal Maximum. Conversely, the late Holocene was governed by deteriorating climatic conditions, with predominant Arctic/Polar water inflow on the surface water masses off Western Svalbard, possibly associated with summer insolation decline due to orbital forcing.},
	keywords = {Clay minerals},
	issn = {0031-0182},
	doi = {http://doi.org/10.1016/j.palaeo.2016.10.003},
	url = {http://www.sciencedirect.com/science/article/pii/S0031018216305533},
	author = {Katia Carbonara and Karin Mezgec and Gabriella Varagona and Maria Elena Musco and Renata Giulia Lucchi and Giuliana Villa and Caterina Morigi and Romana Melis and Mauro Caffau}
}
@article {Mason20161,
	title = {Parent material influence on soil response to vegetation change, Southeastern Minnesota, U.S.A.},
	journal = {Geoderma},
	volume = {275},
	year = {2016},
	pages = {1 - 17},
	abstract = {Abstract Soil morphology changes dramatically across the former transition from forest to grassland in the Midwestern U.S.A. That vegetation boundary shifted as a result of Holocene climatic change and fire suppression following Euroamerican settlement, but the timescale of soil response to those vegetation changes and the factors that influence it are poorly known. On steep colluvial slopes of southeastern Minnesota, Mollisols with thick, dark A horizons typically associated with grassland are found today under deciduous forest. Soils with much thinner and/or lighter-colored A horizons occur immediately up- and downslope of the forest-covered Mollisols. Most of the soils with thick A horizons are not in topographic settings found to favor organic matter accumulation in other landscapes. Principal component analysis highlights important axes of textural and mineralogical variation among horizons of these soils, often related to parent material properties. Soils with and without thick A horizons are separated along one principal component heavily loaded by high pH, reflecting the presence of dolomite fragments in the hillslope sediment that soils with thick, dark A horizons formed in. Stable C isotope analysis reveals that the Mollisols with thick, dark A horizons under forest had C input from vegetation with abundant \{C4\} grasses in the past. Public land survey data also indicate replacement of grassland or savanna by forest since 1854 on colluvial slopes where forest-covered Mollisols occur today. We propose that the soils with thick, dark A horizons under forest today reflect a lagged response to vegetation change, from grassland or savanna to closed forest. Their thick A horizons and some C4-derived organic matter may be preserved because dolomite weathering releases abundant Ca++ and Mg++ that favor aggregation and organic matter stabilization. Soils with thin A horizons just up- or downslope may also have formed partly under grasses, but have responded more quickly and/or more substantially to vegetation change.},
	keywords = {Parent material},
	issn = {0016-7061},
	doi = {http://doi.org/10.1016/j.geoderma.2016.04.004},
	url = {http://www.sciencedirect.com/science/article/pii/S0016706116301513},
	author = {Joseph A. Mason and Peter M. Jacobs and Kristine E. Gruley and Paul Reyerson and Paul R. Hanson}
}
@article {Toledo201650,
	title = {Plankton biochronology for the last 772,000 years from the western South Atlantic Ocean},
	journal = {Marine Micropaleontology},
	volume = {127},
	year = {2016},
	pages = {50 - 62},
	abstract = {Abstract Calcareous microfossils have potential in the biostratigraphy of Pleistocene sediments and a clear relationship with paleoceanographic studies. Conversely, there are few quantitative biostratigraphic studies of chronologically-tuned events or sections in the western South Atlantic. In order to improve the stratigraphical framework for South Atlantic paleoceanographic studies, the present work attempts to review the last 772,000 years by carrying out a quantitative analysis of the calcareous nannofossil and planktonic foraminiferal assemblages by comparing them with a high resolution marine isotopic record (δ18O). This work is based on the analysis of two piston cores obtained from the continental slope of the Santos Basin in the Santos Drift, southeastern Brazilian Continental Margin. Twelve Pleistocene calcareous nannofossil events and twenty planktonic foraminifera events calibrated with oxygen isotopes and correlated with literature stratigraphies are discussed. This is the first calcareous plankton biochronology study for the last 772 kyr in the western South Atlantic Ocean. More studies in this region will help to establish a more precise biochronology for these calcareous microfossils. This study also presents six new biostratigraphic events of isotopically-caibrated planktonic foraminifera which can be used as markers in the western South Atlantic.},
	keywords = {Biochronology},
	issn = {0377-8398},
	doi = {http://doi.org/10.1016/j.marmicro.2016.07.002},
	url = {http://www.sciencedirect.com/science/article/pii/S0377839816300561},
	author = {Felipe A.L. Toledo and Juliana P. Quadros and Edmundo Camillo Jr. and Ana Cl{\'a}udia A. Santarosa and Jos{\'e}-Abel Flores and Karen B. Costa}
}
@article {Pendea201651,
	title = {Prehistoric human responses to volcanic tephra fall events in the Ust-Kamchatsk region, Kamchatka Peninsula (Kamchatsky Krai, Russian Federation) during the middle to late Holocene (6000{\textendash}500~cal~BP)},
	journal = {Quaternary International},
	volume = {394},
	year = {2016},
	note = {Volcanic Activity and Human Society},
	pages = {51 - 68},
	abstract = {Abstract Prehistoric peoples in Kamchatka coped with recurrent volcanic tephra fall events during the middle to late Holocene. Recent data collected by the International Collaborative Circumpolar Archaeological Project (ICAAP) between 2009 and 2011 explores the long-term relationships between drastic landscape change and concomitant human response. A combination of new archaeological, paleoenvironmental and tephrochronological data demonstrate how the major Ksudach 1750~cal~BP (KS1) eruption accelerated settlement relocation from the interior to the paleo-coastline.},
	keywords = {Tephra},
	issn = {1040-6182},
	doi = {http://doi.org/10.1016/j.quaint.2015.07.033},
	url = {http://www.sciencedirect.com/science/article/pii/S1040618215007090},
	author = {I. Florin Pendea and Hans Harmsen and Dustin Keeler and Ezra B.W. Zubrow and Gregory Korosec and Erika Ruhl and Irina Ponkratova and Eva Hulse}
}
@article {2452,
	title = {PALEO-STORM INDICATORS WITHIN SASYK LIMAN BAYMOUTH BARRIER, UKRAINE},
	journal = {Geology Bulletin},
	volume = {29},
	year = {2015},
	pages = {53-59},
	abstract = {Sedimentary sequences along continental and insular margins serve as archives of coastal erosion by storms and tsunamis. In areas where overwash is limited or precluded by barrier width and height, such as prograded beach-ridge plains (strandplains), geomorphological (scarps) and lithological (heavy-mineral concentrations) indicators provide the only means of assessing the extent and timing of erosional events. This research presents geological evidence of buried erosional scarps along the Black Sea coast of southwestern Ukraine. A distinct paleo-scarp imaged in shore-normal georadar profile and the associated heavy-mineral horizon (magnetic susceptibility >1,700 SI) indicate a storm event that impacted the shoreline of Sasyk Liman baymouth barrier in historical times. Optical dating offers a more reliable chronology of erosional events, whereas radiocarbon-dated reworked early Holocene shells aid in determining the sources of bioclastic material.},
	keywords = {georadar, heavy-mineral concentration, magnetic susceptibility},
	issn = {2078-6425},
	author = {Buynevich, I.V. and Kadurin, S.V.}
}
@article {11,
	title = {Palynological reconstruction of environmental changes in coastal wetlands of the Florida Everglades since the mid-Holocene},
	journal = {Quaternary Research},
	volume = {83},
	year = {2015},
	pages = {449-458},
	abstract = {Palynological, loss-on-ignition, and X-ray fluorescence data from a 5.25 m sediment core from a mangrove forest at the mouth of the Shark River Estuary in the southwestern Everglades National Park, Florida were used to reconstruct changes occurring in coastal wetlands since the mid-Holocene. This multi-proxy record contains the longest paleoecological history to date in the southwestern Everglades. The Shark River Estuary basin was formed ~ 5700 cal yr BP in response to increasing precipitation. Initial wetlands were frequently-burned short-hydroperiod prairies, which transitioned into long-hydroperiod prairies with sloughs in which peat deposits began to accumulate continuously about 5250 cal yr BP. Our data suggest that mangrove communities started to appear after ~ 3800 cal yr BP; declines in the abundance of charcoal suggested gradual replacement of fire-dominated wetlands by mangrove forest over the following 2650 yr. By ~ 1150 cal yr BP, a dense Rhizophora mangle dominated mangrove forest had formed at the mouth of the Shark River. The mangrove-dominated coastal ecosystem here was established at least 2000 yr later than has been previously estimated.},
	issn = {0033-5894},
	doi = {10.1016/j.yqres.2015.03.005},
	url = {http://www.sciencedirect.com/science/article/pii/S0033589415000290},
	author = {Yao, Qiang and Liu, Kam-biu and Platt, William J. and Rivera-Monroy, Victor H.}
}
@article {30,
	title = {A post-glacial relative sea-level curve from Fiordland, New Zealand},
	journal = {Global and Planetary Change},
	volume = {131},
	year = {2015},
	pages = {104-114},
	abstract = {The modern fjords of southwest New Zealand were previously stranded lakes isolated from the Tasman Sea by bedrock and moraine sills following the retreat of glaciers at the Last Glacial Maximum. The isolated lake basins were subsequently inundated with sea water when sea-level rise overtopped the sills. A record of the lacustrine-to-marine environmental transition is preserved in the fjord basin sediments and is identified in two New Zealand fjords with high-resolution seismic data and paleoenvironmental analysis of sediment cores. Seismic data are used to constrain the maximum sill depth and microfossil assemblages are used to track the lacustrine-to-marine transition. Chronology is based on fourteen radiocarbon ages. A relative sea-level curve for Fiordland, New Zealand is constructed based on sill depths and age constraints on the marine incursion. The sea-level curve allows insights into estimated uplift rates for Fiordland during the Holocene. From a lowstand of at least 107 mbsl 14,750 yr ago, these data reveal a stepwise transgression. Meltwater Pulse 1b is identified between 12,400 and 11,400 yr ago, with a second acceleration in sea-level rise observed 9700 yr ago. This record contributes a new sea-level curve for a mid-latitude (45{\textdegree}S) Southern Hemisphere location as well as new evidence for Meltwater Pulse 1b.},
	issn = {0921-8181},
	doi = {10.1016/j.gloplacha.2015.05.010},
	url = {http://www.sciencedirect.com/science/article/pii/S0921818115001071},
	author = {Dlabola, E. K. and Wilson, G. S. and Gorman, A. R. and Riesselman, C. R. and Moy, C. M.}
}
@article {2456,
	title = {Particle sorting during sediment redistribution processes and the effect on <sup>230</sup>               Th-normalized mass accumulation rates},
	journal = {Geophysical Research Letters},
	volume = {41},
	year = {2014},
	month = {Apr-08-2015},
	pages = {5547 - 5554},
	abstract = {The 230Th method of determining mass accumulation rates (MARs) assumes that little to no fractionation occurs during sediment redistribution processes at the seafloor. We examine 230Th inventories in radiocarbon-dated multicore sediments from paired winnowed and focused sites at Cocos and Carnegie Ridges, Panama Basin. Radiocarbon-derived sand MARs, which likely represent the vertical rain of particles poorly transported by bottom currents, are similar at each of the paired sites but are different using 230Th normalization. 230Th-normalized MARs are about 60\% lower at focused sites and likely underestimate vertical MARs, while the reverse is true for winnowed sites. We hypothesize that size fractionation occurs most frequently at lower current velocities, resulting in the coarse fraction being left behind and primarily the fine 230Th-rich grains being transported downslope. 230Th-normalization works well for recording fine-grained (detrital and opal), but not coarse-grained (carbonate), fluxes in regions that have undergone sediment redistribution.},
	doi = {10.1002/2014GL060477},
	url = {http://doi.wiley.com/10.1002/2014GL060477https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002\%2F2014GL060477},
	author = {Marcantonio, Franco and Lyle, Mitchell and Ibrahim, Rami}
}
@article { ISI:000359186200001,
	title = {Phylogeny and phylogeography of functional genes shared among seven terrestrial subsurface metagenomes reveal N-cycling and microbial evolutionary relationships},
	journal = {FRONTIERS IN MICROBIOLOGY},
	volume = {5},
	year = {2014},
	month = {OCT 31},
	type = {Article},
	abstract = {Comparative studies on community phylogenetics and phylogeography of microorganisms living in extreme environments are rare. Terrestrial subsurface habitats are valuable for studying microbial biogeographical patterns due to their isolation and the restricted dispersal mechanisms. Since the taxonomic identity of a microorganism does not always correspond well with its functional role in a particular community, the use of taxonomic assignments or patterns may give limited inference on how microbial functions are affected by historical, geographical and environmental factors. With seven metagenomic libraries generated from fracture water samples collected from five South African mines, this study was carried out to (1) screen for ubiquitous functions or pathways of biogeochemical cycling of CH4, S, and N; (2) to characterize the biodiversity represented by the common functional genes; (3) to investigate the subsurface biogeography as revealed by this subset of genes; and (4) to explore the possibility of using metagenomic data for evolutionary study. The ubiquitous functional genes are NarV, NPD, PAPS reductase, NifH, NifD, NifK, NifE, and NifN genes. Although these eight common functional genes were taxonomically and phylogenetically diverse and distinct from each other, the dissimilarity between samples did not correlate strongly with geographical or environmental parameters or residence time of the water. Por genes homologous to those of Thermodesulfovibrio yellowstonii detected in all metagenomes were deep lineages of Nitrospirae, suggesting that subsurface habitats have preserved ancestral genetic signatures that inform the study of the origin and evolution of prokaryotes.},
	keywords = {evolution, functional genes, N-cycle, phylogenetics, phylogeny, phylogeography, terrestrial subsurface},
	issn = {1664-302X},
	doi = {10.3389/fmicb.2014.00531},
	author = {Lau, Maggie C. Y. and Cameron, Connor and Magnabosco, Cara and Brown, C. Titus and Schilkey, Faye and Grim, Sharon and Hendrickson, Sarah and Pullin, Michael and Lollar, Barbara Sherwood and Van Heerden, Esta and Kieft, Thomas L. and Onstott, Tullis C.}
}
@article {49,
	title = {Pore-water chemistry of sediment cores off Mahanadi Basin, Bay of Bengal: Possible link to deep seated methane hydrate deposit},
	journal = {Marine and Petroleum Geology},
	volume = {49},
	year = {2014},
	pages = {162-175},
	abstract = {Organoclastic degradation and anaerobic oxidation of methane (AOM) are known to influence sulfate, methane and bicarbonate concentrations of sediment pore-waters. In this work we have analyzed the pore-fluid composition of three piston cores (36{\textendash}39 m long) collected from water depths ranging from 1429 to 1691 m. We attribute the observed linear sulfate concentration profiles and (ΔCa + ΔAlk)/ΔSO42- ratios dominantly to anaerobic oxidation of methane (AOM) induced sulfate consumption. The gas rich layers just below the base of hydrate stability zone (BGHSZ) is the possible source of the enhanced diffusive flux of biogenic methane ( δ 13 C CH 4 ranging from -99.7 to -106.3{\textperthousand} VPDB). Occurrences of disseminated gas hydrate in the Mahanadi Basin within the hydrate stability zone (210{\textendash}220 m thick) supports the link between linear sulfate profile, high rate of AOM and hydrate occurrence.},
	issn = {0264-8172},
	doi = {10.1016/j.marpetgeo.2013.10.011},
	url = {http://www.sciencedirect.com/science/article/pii/S0264817213002638},
	author = {Mazumdar, A. and Peketi, A. and Joao, H. M. and Dewangan, P. and Ramprasad, T.}
}
@article {66,
	title = {Pre-aged plant waxes in tropical lake sediments and their influence on the chronology of molecular paleoclimate proxy records},
	journal = {Geochimica et Cosmochimica Acta},
	volume = {141},
	year = {2014},
	pages = {346-364},
	abstract = {Sedimentary records of plant-wax hydrogen (δDwax) and carbon (δ13Cwax) stable isotopes are increasingly applied to infer past climate change. Compound-specific radiocarbon analyses, however, indicate that long time lags can occur between the synthesis of plant waxes and their subsequent deposition in marginal marine sediments. The influence of these time lags on interpretations of plant-wax stable isotope records is presently unconstrained, and it is unclear whether such time lags also affect lacustrine sediments. We present compound-specific radiocarbon (14Cwax) data for n-alkanoic acid plant waxes (n-C26 to n-C30) from: 1) a sediment core from Lake Chichancanab, Yucatan Peninsula, Mexico, 2) soils in the Lake Chichancanab catchment, and 3) surface sediments from three other lakes in southeastern Mexico and northern Guatemala. 14Cwax ages in the surface sediments are consistently older than modern, and may be negatively correlated with mean annual precipitation and positively correlated with lake catchment area. 14Cwax ages in soils surrounding Lake Chichancanab increase with soil depth, consistent with deep, subsoil horizons being the primary source of lacustrine aged plant waxes, which are likely delivered to lake sediments through subsurface transport. Plant waxes in the Lake Chichancanab core are 350 to 1200 years older than corresponding ages of bulk sediment deposition, determined by 14C dates on terrestrial plant macrofossils in the core. A δDwax time series is in closer agreement with other regional proxy hydroclimate records when a plant-wax 14C age model is applied, as opposed to the macrofossil-based core chronology. Inverse modeling of plant-wax age distribution parameters suggests that plant waxes in the Lake Chichancanab sediment core derive predominantly from millennial-age soil carbon pools that exhibit relatively little age variance (< 200 years). Our findings demonstrate that high-temporal-resolution climate records inferred from stable isotope measures on plant waxes in lacustrine sediments may suffer from possible chronologic distortions as a consequence of long residence times of plant waxes in soils. They also underscore the importance of direct radiocarbon dating of these organic molecules.},
	issn = {0016-7037},
	doi = {10.1016/j.gca.2014.06.030},
	url = {http://www.sciencedirect.com/science/article/pii/S0016703714004451},
	author = {Douglas, Peter M. J. and Pagani, Mark and Eglinton, Tim E. and Brenner, Mark and Hodell, David A. and Curtis, Jason H. and Ma, Keith and Breckenridge, Andy}
}
@article { ISI:000348452800012,
	title = {Preferential burial of permafrost-derived organic carbon in Siberian-Arctic shelf waters},
	journal = {JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS},
	volume = {119},
	number = {{12}},
	year = {2014},
	month = {DEC},
	pages = {8410-8421},
	type = {Article},
	abstract = {The rapidly changing East Siberian Arctic Shelf (ESAS) receives large amounts of terrestrial organic carbon (OC) from coastal erosion and Russian-Arctic rivers. Climate warming increases thawing of coastal Ice Complex Deposits (ICD) and can change both the amount of released OC, as well as its propensity to be converted to greenhouse gases (fueling further global warming) or to be buried in coastal sediments. This study aimed to unravel the susceptibility to degradation, and transport and dispersal patterns of OC delivered to the ESAS. Bulk and molecular radiocarbon analyses on surface particulate matter (PM), sinking PM and underlying surface sediments illustrate the active release of old OC from coastal permafrost. Molecular tracers for recalcitrant soil OC showed ages of 3.4-13 C-14-ky in surface PM and 5.5-18 C-14-ky in surface sediments. The age difference of these markers between surface PM and surface sediments is larger (i) in regions with low OC accumulation rates, suggesting a weaker exchange between water column and sediments, and (ii) with increasing distance from the Lena River, suggesting preferential settling of fluvially derived old OC nearshore. A dual-carbon end-member mixing model showed that (i) contemporary terrestrial OC is dispersed mainly by horizontal transport while being subject to active degradation, (ii) marine OC is most affected by vertical transport and also actively degraded in the water column, and (iii) OC from ICD settles rapidly and dominates surface sediments. Preferential burial of ICD-OC released into ESAS coastal waters might therefore lower the suggested carbon cycle climate feedback from thawing ICD permafrost.},
	keywords = {biomarkers, carbon, permafrost, radiocarbon},
	issn = {2169-9275},
	doi = {10.1002/2014JC010261},
	author = {Vonk, Jorien E. and Semiletov, Igor P. and Dudarev, Oleg V. and Eglinton, Timothy I. and Andersson, August and Shakhova, Natalia and Charkin, Alexander and Heim, Birgit and Gustafsson, {\"O}rjan}
}
@article {83,
	title = {Paleoclimate changes of the last 1000 yr on the eastern Qinghai{\textendash}Tibetan Plateau recorded by elemental, isotopic, and molecular organic matter proxies in sediment from glacial Lake Ximencuo},
	journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},
	volume = {379{\textendash}380},
	year = {2013},
	note = {id: 2310},
	pages = {39-53},
	abstract = {Total organic carbon (Corg) and nitrogen (Ntot) concentrations and isotope compositions and n-alkane and n-alkan-ol molecular biomarker compositions were measured in two parallel sediment cores from Lake Ximencuo, a typical glacial lake on the eastern Qinghai{\textendash}Tibetan Plateau (QTP), to reconstruct local climatic variations during the past 1000 yr. Concentrations of Corg and Ntot vary similarly with changes in precipitation recorded by tree rings in Dulan, northeastern QTP, indicating their close relation to precipitation. Carbon Preference Index (CPI) values of C22{\textendash}C33 n-alkanes and C22{\textendash}C28 n-alkan-1-ols and Average Chain Length (ACL) values of C27{\textendash}C33 n-alkanes generally negatively correlate with δ13Corg and δ15Ntot and also vary comparably with the oxygen isotope temperature record from the Dunde ice core, northeastern QTP. These patterns indicate that high CPI values and negative shifts of the δ13Corg and δ15Ntot correspond to warmer conditions that favor the growth of vascular land plants and that lower values and positive shifts correspond to cooler conditions in the Lake Ximencuo locality. This observation contradicts previous interpretations from peat and modern soil studies that conclude that the CPI indices were controlled by microbial degradation under different climate conditions. Here we propose that the changes of organic matter sources under different climate regimes, combined with physiological adjustments of vascular plants to different air temperatures, might yield different CPI responses to climate changes in glacial plateau lakes. Air temperature and precipitation increases and decreases reconstructed in this 1000-yr study were generally independent of each other, but they both occurred at centennial or multi-centennial scales. The interaction between subtropical (Asian Monsoon) and mid-latitude (Westerly) atmospheric circulation systems probably dominated the local precipitation variations in the Lake Ximencuo catchment, whereas solar insolation, volcanism and greenhouse gas variations were likely responsible for the air temperature changes that are recorded in the lake sediments and that are consistent with regional temperature variations in the eastern QTP.},
	issn = {0031-0182},
	doi = {10.1016/j.palaeo.2013.03.023},
	url = {http://www.sciencedirect.com/science/article/pii/S0031018213001648},
	author = {Pu, Yang and Nace, Trevor and Meyers, Philip A. and Zhang, Hucai and Wang, Yongli and Zhang, Chuanlun L. and Shao, Xiaohua}
}
@article {2545,
	title = {Persistent export of 231Pa from the deep central Arctic Ocean over the past 35,000 years},
	journal = {Nature},
	volume = {497},
	year = {2013},
	month = {May-05-2015},
	pages = {603 - 606},
	abstract = {The Arctic Ocean has an important role in Earth{\textquoteright}s climate, both through surface processes1 such as sea-ice formation and transport, and through the production and export of waters at depth that contribute to the global thermohaline circulation2, 3. Deciphering the deep Arctic Ocean{\textquoteright}s palaeo-oceanographic history is a crucial part of understanding its role in climatic change. Here we show that sedimentary ratios of the radionuclides thorium-230 (230Th) and protactinium-231 (231Pa), which are produced in sea water and removed by particle scavenging on timescales of decades to centuries, respectively4, record consistent evidence for the export of 231Pa from the deep Arctic and may indicate continuous deep-water exchange between the Arctic and Atlantic oceans throughout the past 35,000 years. Seven well-dated box-core records provide a comprehensive overview of 231Pa and 230Th burial in Arctic sediments during glacial, deglacial and interglacial conditions. Sedimentary 231Pa/230Th ratios decrease nearly linearly with increasing water depth above the core sites, indicating efficient particle scavenging in the upper water column and greater influence of removal by lateral transport at depth. Although the measured 230Th burial is in balance with its production in Arctic sea water, integrated depth profiles for all time intervals reveal a deficit in 231Pa burial that can be balanced only by lateral export in the water column. Because no enhanced sink for 231Pa has yet been found in the Arctic, our records suggest that deep-water exchange through the Fram strait may export 231Pa. Such export may have continued for the past 35,000 years, suggesting a century-scale replacement time for deep waters in the Arctic Ocean since the most recent glaciation and a persistent contribution of Arctic waters to the global ocean circulation.},
	keywords = {Marine chemistry, Palaeoceanography, Palaeoclimate},
	issn = {0028-0836},
	doi = {10.1038/nature12145},
	url = {http://www.nature.com/doifinder/10.1038/nature12145},
	author = {Hoffmann, Sharon S. and McManus, Jerry F. and Curry, William B. and Brown-Leger, L. Susan}
}
@article { ISI:000320699900006,
	title = {Pleistocene sequence stratigraphy of the shallow continental shelf, offshore New Jersey: Constraints of Integrated Ocean Drilling Program Leg 313 core holes},
	journal = {GEOSPHERE},
	volume = {9},
	number = {{1}},
	year = {2013},
	month = {FEB},
	pages = {74-95},
	type = {Article},
	abstract = {We used cores and logs from Integrated Ocean Drilling Program (IODP) Expedition 313 to generate biostratigraphic, lithofacies, biofacies, and geochemical data that constrain the ages and paleoenvironments of Pleistocene sequences. We integrate sequence stratigraphy on cores with new seismic stratigraphic data to interpret the Pleistocene history of the Hudson shelf valley and paleoenvironmental and sea-level changes on the inner to middle continental shelf. Improved age control compared to previous studies is provided by integrated calcareous nannofossil biostratigraphy, Sr isotopic stratigraphy, and amino acid racemization. We recognize four upper Pleistocene-Holocene sequences: sequence uP1 is correlated with Marine Isotope Chrons (MIC; {\textquoteleft}{\textquoteleft}chron{{\textquoteright}{\textquoteright}} is the correct stratigraphic term for a time unit, not {\textquoteleft}{\textquoteleft}stage{{\textquoteright}{\textquoteright}}) 7 or 5e, sequence uP2 with MIC 5c, sequence uP3 with MIC 5a, and sequence uP4 with the latest Pleistocene to Holocene (MIC 1-2). However, within our age resolution it is possible that sequences uP2 and uP3 correlate with MIC 4-3c and 3a, respectively, as suggested by previous studies. Lower Pleistocene sequences lP1 and lP2 likely correlate with peak interglacials (e. g., MIC 31 and MIC 45 or 47, respectively). Thus, we suggest that preservation of sequences occurs only during peak eustatic events (e. g., MIC 45 or 47, MIC 31, and MIC 5), unless they are preserved in eroded valleys. The architecture of the Pleistocene deposits at Sites M27 and M29 is one of thin remnants of highstand and transgressive systems tracts, with lowstand deposits only preserved in the thalwegs of incised valleys. Incised valleys at the bases of sequences uP3 (IODP Site M27) and uP2 (IODP Site M29) document more southward courses of the paleo-Hudson valley, compared to the more southeastward course of the MIC 1-2 paleo-Hudson valley. The patchy distribution of Pleistocene sequences beneath the New Jersey inner-middle continental shelf is due to low accommodation during an interval of large eustatic changes; this predicts that sequences in such settings will be discontinuous, patchy, and difficult to correlate, consistent with previous studies in Virginia and North Carolina.},
	issn = {1553-040X},
	doi = {10.1130/GES00795.1},
	author = {Miller, Kenneth G. and Sugarman, Peter J. and Browning, James V. and Sheridan, Robert E. and Kulhanek, Denise K. and Monteverde, Donald H. and Wehmiller, John F. and Lombardi, Christopher and Feigenson, Mark D.}
}
@article { ISI:000327814700020,
	title = {Prominent bacterial heterotrophy and sources of C-13-depleted fatty acids to the interior Canada Basin},
	journal = {BIOGEOSCIENCES},
	volume = {10},
	number = {{11}},
	year = {2013},
	pages = {7065-7080},
	type = {Article},
	abstract = {In recent decades, the Canada Basin of the Arctic Ocean has experienced rapidly decreasing summer sea ice coverage and freshening of surface waters. It is unclear how these changes translate to deeper waters, particularly as our baseline understanding of organic carbon cycling in the deep basin is quite limited. In this study, we describe full-depth profiles of the abundance, distribution and carbon isotopic composition of fatty acids from suspended particulate matter at a seasonally ice-free station and a semi-permanently ice-covered station. Fatty acids, along with suspended particulate organic carbon (POC), are more concentrated and C-13-enriched under ice cover than in ice-free waters. But this influence, apparent at 50 m depth, does not propagate downward below 150m depth, likely due to the weak biological pump in the central Canada Basin. Branched fatty acids have delta C-13 values that are similar to suspended POC at all depths and are more C-13-enriched than even-numbered saturated fatty acids at depths above 3000 m. These are likely to be produced in situ by heterotrophic bacteria incorporating organic carbon that is isotopically similar to total suspended POC. Below surface waters, there is also the suggestion of a source of saturated even-numbered fatty acids which could represent contributions from laterally advected organic carbon and/or from chemoautotrophic bacteria. At 3000 m depth and below, a greater relative abundance of long-chain (C20-24), branched and unsaturated fatty acids is consistent with a stronger influence of re-suspended sedimentary organic carbon. At these deep depths, two individual fatty acids (C-12 and iso-C-17) are significantly depleted in C-13, allowing for the possibility that methane oxidizing bacteria contribute fatty acids, either directly to suspended particulate matter or to shallow sediments that are subsequently mobilized and incorporated into suspended particulate matter within the deep basin.},
	issn = {1726-4170},
	doi = {10.5194/bg-10-7065-2013},
	author = {Shah, S. R. and Griffith, D. R. and Galy, V. and McNichol, A. P. and Eglinton, T. I.}
}
@article {125,
	title = {Pacific cod (Gadus macrocephalus) as a paleothermometer: otolith oxygen isotope reconstruction},
	journal = {Journal of Archaeological Science},
	volume = {39},
	year = {2012},
	note = {id: 2303},
	pages = {3277-3283},
	abstract = {Stable isotope studies are increasingly important for understanding past environmental and cultural developments along the North Pacific Rim. In this paper, we present methods for using Pacific cod (Gadus macrocephalus) otoliths as a paleothermometer using a case study from Kodiak Island, Alaska. The results of this study indicate that Pacific cod otoliths record variable paleoenvironmental conditions during the Little Ice Age. The broad distribution of Pacific cod and success in using the otoliths as a paleothermometer makes this method widely applicable to researchers working throughout the northern Pacific Rim.},
	issn = {0305-4403},
	doi = {10.1016/j.jas.2012.05.009},
	url = {http://www.sciencedirect.com/science/article/pii/S0305440312002087},
	author = {West, Catherine F. and Wischniowski, Stephen and Johnston, Christopher}
}
@article {151,
	title = {Paleoenvironmental changes on the northeastern and southwestern Black Sea shelves during the Holocene},
	journal = {Quaternary International},
	volume = {261},
	year = {2012},
	note = {id: 2123},
	pages = {91-104},
	abstract = {Four paleoceanographic events are distinguished during the Holocene based on changes in macro- and microfossil assemblages studied from three sediment cores (Ak 521, 522, 2571) from the outer northeast shelf and from core MAR02-45 situated on the southwest shelf of the Black Sea, west to the Bosphorus. The lithology and fossils were previously studied from cores Ak 521 and Ak 522 and MAR02-45. However, high resolution ostracod analyses from the AMS-14C dated core, Ak 2571, allowed for a revision of the taxonomy and paleoecological interpretation of this microfaunal group on the NE shelf. Downcore changes in the relative abundance of the polyhaline ostracods are found to be contemporaneous in all three cores from the NE shelf. As a result, centennial-millennial scale fluctuations of the bottom-water salinity are resolved in the area. A broader scale examination of paleoenvironmental changes between the NE and SW shelves is also made and the surface to bottom salinity gradient is discussed. An uncalibrated radiocarbon based chronology is used throughout this paper to facilitate comparison with the regional chronostratigraphy of marine transgression and regressions in the Black Sea. The calibrated ages corrected for the changes in reservoir age through the Holocene are also provided. The first paleoceanographic event is associated with the pulse of Mediterranean water previously established at about 9.8{\textendash}9.3 ka BP. This event is clearly observed in the SW region but not on the NE shelf due to a hiatus in the longest core, Ak 521. The second event is represented on both the NE and SW shelves as a replacement of brackish benthic fauna and surface phytoplankton with marine ones between 8.4 and 6.9 ka BP, indicating a gradual increase in salinity. The third event is marked by opposing trends in surface and bottom-water salinity changes. On the NE shelf, bottom-water salinity rose to modern values by \~{} 6.5 ka BP and then decreased within the interval \~{}6.4{\textendash}5.3 ka BP as recorded by the ostracod assemblages. On the SW shelf, surface-water salinity reached modern values by 5.6 ka BP and remained constant until present day as inferred from the dinoflagellate cyst assemblages. The fourth event is marked by a recurring increase in bottom-water salinity to modern values indicated by the polyhaline ostracod assemblages at \~{} 5.3 ka BP in the NE region, after which only minor salinity fluctuations are observed.},
	issn = {1040-6182},
	doi = {10.1016/j.quaint.2011.11.015},
	url = {http://www.sciencedirect.com/science/article/pii/S1040618211006550},
	author = {Ivanova, Elena V. and Murdmaa, Ivar O. and Karpuk, Maria S. and Schornikov, Eugene I. and Marret, Fabienne and Cronin, Thomas M. and Buynevich, Ilya V. and Platonova, Elena A.}
}
@article { ISI:000306950700015,
	title = {Paleoseismic and geomorphologic evidence of recent tectonic activity of the Pozohondo Fault (Betic Cordillera, SE Spain)},
	journal = {JOURNAL OF IBERIAN GEOLOGY},
	volume = {38},
	number = {{1, SI}},
	year = {2012},
	pages = {239-251},
	type = {Article},
	abstract = {Instrumental and historical seismicity in the Albacete province (External Prebetic Zone) has been scarcely recorded. However, major strike-slip faults showing NW-SE trending provide geomorphologic and paleoseismic evidence of recent tectonic activity (Late Pleistocene to Present). Moreover, these faults are consistently well oriented under the present stress tensor and therefore, they can trigger earthquakes of magnitude greater than M6, according to the lengths of surface ruptures and active segments recognized in fieldwork. Present landscape nearby the village of Hellin (SE of Albacete) is determined by the recent activity of the Pozohondo Fault (FPH), a NW-SE right-lateral fault with 90 km in length. In this study, we have calculated the Late Quaternary tectonic slip-rate of the FPH from geomorphological, sedimentological, archaeoseimological, and paleoseismological approaches. All of these data suggest that the FPH runs with a minimum slip-rate of 0.1 mm/yr during the last 100 kyrs (Upper Pleistocene-Holocene). In addition, we have recognized the last two major paleoearthquakes associated to this fault. Magnitudes of these paleoearthquakes were gretarer than M6 and their recurrence intervals ranged from 6600 to 8600 yrs for the seismic cycle of FPH. The last earthquake was dated between the 1st and 6th centuries, though two earthquakes could be interpreted in this wide time interval, one at the FPH and other from a far field source. Results obtained here, suggest an increasing of the tectonic activity of the Pozohondo Fault during the last 10,000 yrs.},
	keywords = {Geomorphology, Paleoseismology, Prebetic, Quaternary, SE Spain},
	issn = {1698-6180},
	doi = {10.5209/rev_JIGE.2012.v38.n1.39216},
	author = {Rodriguez-Pascua, M. A. and Perez-Lopez, R. and Garduno-Monroy, V. H. and Giner-Robles, J. L. and Silva, P. G. and Perucha-Atienza, M. A. and Hernandez-Madrigal, V. M. and Bischoff, J.}
}
@article {162,
	title = {Photochemical reactivity of ancient marine dissolved organic carbon},
	journal = {Geophysical Research Letters},
	volume = {39},
	year = {2012},
	note = {id: 2249; PT: J; TC: 0; UT: WOS:000309136800001},
	pages = {L18602-L18602},
	abstract = {Marine dissolved organic carbon (DOC) is the largest reservoir of reduced carbon in seawater and persists up to 4,000-6,000 conventional radiocarbon (C-14) years on average. Photochemical degradation has been suggested as a geochemical sink for these long-lived molecules, yet there have been no studies relating photochemical lability to the C-14-ages of surface DOC. We observed apparent second order (2 degrees) kinetics with respect to DOC and a strong trend from Delta C-14-enriched to depleted values during exhaustive photomineralization of surface marine DOC with high energy UV light. Geochemically, these results suggest that surface DOC is an isotopically-heterogeneous mixture of molecules for which photochemical lability and C-14 ages are correlated. Photochemical mineralization may therefore be an important control on the persistence of C-14-depleted DOC in the ocean. Citation: Beaupre, S. R., and E. R. M. Druffel (2012), Photochemical reactivity of ancient marine dissolved organic carbon, Geophys. Res. Lett., 39, L18602, doi:10.1029/2012GL052974.},
	issn = {0094-8276},
	doi = {10.1029/2012GL052974},
	author = {Beaupr{\'e}, Steven R. and Druffel, Ellen R. M.}
}
@article {139,
	title = {Postglacial (after 18 ka) deep-sea sedimentation along the Hikurangi subduction margin (New Zealand): Characterisation, timing and origin of turbidites},
	journal = {Marine Geology},
	volume = {295{\textendash}298},
	year = {2012},
	note = {id: 2142},
	pages = {51-76},
	abstract = {Recent sedimentation along the Hikurangi subduction margin off northeastern New Zealand is investigated using a series of piston cores collected between 2003 and 2008. The active Hikurangi Margin lies along the Pacific{\textendash}Australia subduction plate boundary and contains a diverse range of geomorphologic settings. Slope basin stratigraphy is thick and complex, resulting from sustained high rates of sedimentation from adjacent muddy rivers throughout the Quaternary. Turbidites deposited since c. 18 ka in the Poverty, Ruatoria and Matakaoa re-entrants are central to this study in that they provide a detailed record of the past climatic conditions and tectonic activity. Here, alternating hemipelagite, turbidite, debrite and tephra layers reflect distinctive depositional modes of marine sedimentation, turbidity current, debris flow and volcanic eruption, respectively. Turbidites dominate the record, ranging in lithofacies from muddy to sandy turbidites, and include some basal-reverse graded turbidites inferred to be derived from hyperpycnal flows. Stacked turbidites are common and indicate multiple gravity-flows over short time periods. The chronology of turbidites is determined by collating an extremely dense set of radiocarbon ages and dated tephra, which facilitate sedimentation rate calculation and identification of the origin of turbidites. Sedimentation rates range from 285 cm/ka during late glacial time (18.5{\textendash}17 ka) to 15 to 109 cm/ka during postglacial time (17{\textendash}0 ka). Turbidite deposition is controlled by: (1) the emplacement of slope avalanches reorganising sediment pathways; (2) the postglacial marine transgression leading to a five-fold reduction in sediment supply to the slope due to disconnection of river mouths from the shelf edge, and (3) the Holocene/Pleistocene boundary climate warming resulting in a drastic decrease in the average turbidite grain-size. Flood-induced turbidites are scarce: nine hyperpycnites are recognised since 18 ka and the youngest is correlated to the largest ENSO-related storm event recorded onland (Lake Tutira). Other turbidites contain a benthic foraminiferal assemblage which is strictly reworked from the upper slope and which relates to large earthquakes over the last c. 7 ka. They yield a shorter return time (270{\textendash}430 years) than the published coastal records for large earthquakes (c. 670 years), but the offshore record is likely to be more complete. The deep-sea sedimentation along the New Zealand active margin illustrates the complex interaction of tectonic and climate in turbidite generation. Climate warming and glacio-eustatic fluctuations are well recorded at a millennial timescale (18 ka), while tectonic deformation and earthquakes appear predominant in fostering turbidite production at a centennial timescale (270{\textendash}430 years).},
	issn = {0025-3227},
	doi = {10.1016/j.margeo.2011.11.002},
	url = {http://www.sciencedirect.com/science/article/pii/S0025322711002507},
	author = {Pouderoux, Hugo and Proust, Jean-No{\"e}l and Lamarche, Geoffroy and Orpin, Alan and Neil, Helen}
}
@article {144,
	title = {Pre-Columbian fire regimes in lowland tropical rainforests of southeastern Peru},
	journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},
	volume = {342{\textendash}343},
	year = {2012},
	note = {id: 2307},
	pages = {73-83},
	abstract = {We document the fire history of the forests of a well-studied ecological research station (Los Amigos) in western Amazonia through soil charcoal analysis, and compare results with data from a nearby lake district known to have supported pre-Columbian human populations. We present novel methods of soil charcoal analysis that improve on its current limitations by accounting for variability in post-fire charcoal deposition, problematic age{\textendash}depth relationships, and the presence of weathered or regionally-deposited charcoal particles that allow statistical comparisons of fire history characteristics between regions. The fire histories indicate that the research station experienced less intensive historical fire and pre-Columbian disturbance than the lake district. Dated charcoal particles indicated that while soil depth could not be used to predict fire age, fragments below 20 cm depth were generally older than 500 years. Frequent fires have not occurred in either region during the last 1000 years, but fire events in both regions were significantly synchronous from 1000 to 4000 cal. yr BP. The sampling design and methods that provide an ecologically and statistically valid avenue for comparing fire history characteristics between regions can be modified to suit other ecosystems. The results presented here establish confidence that the patterns and processes of the lowland tropical rainforests studied at Los Amigos are not affected by intense or recurrent historical fires. These data also suggest that forests of Madre de Dios, Peru are not post-successional remnants of a {\textquoteleft}cultural parkland{\textquoteright}, as suggested by some Amazonian archeologists.},
	issn = {0031-0182},
	doi = {10.1016/j.palaeo.2012.05.004},
	url = {http://www.sciencedirect.com/science/article/pii/S0031018212002556},
	author = {McMichael, C. H. and Correa-Metrio, A. and Bush, M. B.}
}
@article {194,
	title = {Paleoecology of mangroves along the Sibun River, Belize},
	journal = {Quaternary Research},
	volume = {76},
	year = {2011},
	note = {id: 2099},
	pages = {220-228},
	abstract = {This study examines a sediment core (SR-63) from a mangrove ecosystem along the Sibun River in Belize, which is subject to both changes in sea-level and in the characteristics of the river{\textquoteright}s drainage basin. Radiocarbon dates from the core show a decreased sedimentation rate from ~ 6 ka to 1 cal ka BP and a marked change in lithology from primarily mangrove peat to fluvial-derived material at ~ 2.5 cal ka BP. Changes in the sedimentation rates observed in mangrove ecosystems offshore have previously been attributed to changes in relative sea-level and the rate of sea-level rise. Pollen analyses show a decreased abundance of Rhizophora (red mangrove) pollen and an increased abundance of Avicennia (black mangrove) pollen and non-mangrove pollen coeval with the decreased sedimentation rates. Elemental ratios ([N:C]a) and stable isotope analyses (δ15N and δ13C) show that changes in the composition of the organic material are also coeval with the change in lithology. The decrease in sedimentation rate at the site of core SR-63 and at offshore sites supports the idea that regional changes in hydrology occurred during the Holocene in Belize, influencing both mainland and offshore mangrove ecosystems.},
	issn = {0033-5894},
	doi = {10.1016/j.yqres.2011.06.001},
	url = {http://www.sciencedirect.com/science/article/pii/S003358941100069X},
	author = {Monacci, Natalie M. and Meier-Gr{\"u}nhagen, Ursula and Finney, Bruce P. and Behling, Hermann and Wooller, Matthew J.}
}
@article {176,
	title = {Past ocean temperatures and coupled U/Th and (super 14) C measurements from deep-sea corals},
	journal = {Mineralogical Magazine},
	volume = {75},
	year = {2011},
	note = {id: 2212; Source type: scholarlyjournals; Object type: Article; Copyright: GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland; CSAUnique: 610523-50; AccNum: 610523-50; ISSN: 0026-461X; ElecISSN: 1471-8022; CODEN: MNLMBB; Peer Reviewed: true},
	pages = {2003},
	abstract = {Deep-sea corals are a unique archive in paleoceanography. They have large banded skeletons that allow for high resolution records and have a high uranium content allowing for accurate calendar ages independent of radiocarbon age measurements. One problem with using deep-sea corals for long records is that it is difficult to date a large numbers of corals accurately and precisely. Unlike sediment cores, fossil fields of corals have no inherent stratigraphy and each individual coral must be separately dated. Here we present the results of {\textquoteright}reconnaissance radiocarbon age analyses{\textquoteright} made at NOSAMS on 519 Desmophyllum dianthus (D. dianthus) collected from the New England Seamounts and South of Tasmania. We will also present the results of 80 more deep-sea corals measured on the Gas-Source AMS also at NOSAMS in WHOI. We find that the coral populations respond to rapid climate change events and are sensitive to climatically driven changes in thermohaline circulation, productivity, [O (sub 2) ] and [CO (sub 3) (super 2-) ]. Once dated however, their use as a paleoceanographic archive is complicated by the isotope and trace-metal disequilibria in their skeletons relative to co-existing seawater. However two tracers that overcome these vital effects are paired U-series and radiocarbon dates and clumped isotope measurements. Here we will present preliminary data of YD and H1 corals from the New England Seamounts collected from 1000-2600m of water depth in the North Atlantic where all three tracers are measured in the same corals. We find that the temperature profile of the ocean during both the YD and H1 coral population is constant with depth. The average potential temperature of the Younger Dryas profile is 1.6 + or - 0.5 degrees C while the average potential temperature of the Heinrich 1 profile is 3.1+ or -0.9 degrees C. If one outlier in the H1 profile is removed the average temperature becomes 2.3+ or -0.5 degrees C. We will discuss implications for salinity gradients in the water column during these time periods as well changes in the circulation of the ocean.},
	issn = {0026-461X, 0026-461X},
	url = {http://minmag.geoscienceworld.org/content/75/3/1979},
	author = {Thiagarajan, Nivedita and Adkins, Jess and Eiler, John}
}
@article {227,
	title = {Pb isotopic variability in the modern-Pleistocene Indus River system measured by ion microprobe in detrital K-feldspar grains},
	journal = {Geochimica et Cosmochimica Acta},
	volume = {75},
	year = {2011},
	note = {id: 2171},
	pages = {4771-4795},
	abstract = {The western Himalaya, Karakoram and Tibet are known to be heterogeneous with regard to Pb isotope compositions in K-feldspars, which allows this system to be used as a sediment provenance tool. We used secondary ion mass spectrometry to measure the isotopic character of silt and sand-sized grains from the modern Sutlej and Chenab Rivers, together with Thar Desert sands, in order to constrain their origin. The rivers show a clear Himalayan provenance, contrasting with grains from the Indus Suture Zone, but with overlap to known Karakoram compositions. The desert dunes commonly show 207Pb/204Pb and 206Pb/204Pb values that are much higher than those seen in the rivers, most consistent with erosion from Nanga Parbat. This implies at least some origin from the trunk Indus, probably reworked by summer monsoon winds from the SW, a hypothesis supported by bulk Nd and U{\textendash}Pb zircon dating. Further data collected from Holocene and Pleistocene sands shows that filled and abandoned channels on the western edge of the Thar Desert were sourced from Himalayan rivers before and at 6{\textendash}8 ka, but that after that time the proportion of high isotopic ratio grains rose, indicating increased contribution from the Thar Desert dunes prior to \~{}4.5 ka when flow ceased entirely. This may be linked to climatic drying, northward expansion of the Thar Desert, or changes in drainage style including regional capture, channel abandonment, or active local Thar tributaries. Our data further show a Himalayan river channel east of the present Indus, close to the delta, in the Nara River valley during the middle Holocene. While this cannot be distinguished from the Indus it is not heavily contaminated by reworking from the desert. The Pb system shows some use as a provenance tool, but is not effective at demonstrating whether these Nara sediments represent a Ghaggar-Hakra stream independent from the Indus. Our study highlights an important role for eolian reworking of floodplain sediments in arid rivers such as the Indus.},
	issn = {0016-7037},
	doi = {10.1016/j.gca.2011.05.039},
	url = {http://www.sciencedirect.com/science/article/pii/S0016703711003164},
	author = {Alizai, Anwar and Clift, Peter D. and Giosan, Liviu and VanLaningham, Sam and Hinton, Richard and Tabrez, Ali R. and Danish, Muhammad}
}
@inbook {691,
	title = {Pontic-Baltic pathways for invasive aquatic species: geoarchaeological implications},
	booktitle = {Geology and Geoarchaeology of the Black Sea Region: Beyond the Flood Hypothesis},
	year = {2011},
	note = {id: 2122},
	pages = {189-196},
	publisher = {Geological Society of America},
	organization = {Geological Society of America},
	abstract = {An accurate chronology for the exchange of aquatic species between water basins is important for paleoenvironmental reconstruction on both regional and continental scales. During the early Holocene, the range of zebra mussels, Dreissena polymorpha, was limited to the Black, Azov, Caspian, and Aral Seas, as well as the estuaries and lower and middle reaches of the Pontic-Caspian rivers. We present new findings that challenge the currently held view that this species migrated into the Baltic Sea watershed during the early 1800s through the canals joining the tributaries of rivers that drain into the Black and Baltic Sea basins. Geological investigations along the southeast Baltic Sea coast (Curonian and Vistula spits and lagoons) have uncovered shells of D. polymorpha that yielded radiocarbon ages older than 1000 radiocarbon yr B.P. We propose two scenarios to explain the new radiocarbon dates for D. polymorpha. The first scenario involves an anomalously large reservoir effect{\textemdash}as large as 600{\textendash}800 yr{\textemdash}however, several lines of evidence cast doubt upon the validity of such a large reservoir correction. The second scenario that might explain the old zebra mussel ages is the earlier arrival of Dreissena polymorpha into the Baltic region. Natural exchange may have been facilitated by the proximity of the tributaries draining the Pontic and Baltic watersheds. Human-mediated transport is also considered in association with Viking voyages from the Baltic to the Black and Caspian Seas between A.D. 800 and 1000, and the riverine trade exchange during the Lithuanian expansion into the Pontic steppe in subsequent centuries. It is likely that both scenarios played a role, with implications for late Holocene biogeography and paleoecology of the Pontic-Caspian and Baltic basins.},
	issn = {9780813724737},
	doi = {10.1130/2011.2473(12)​},
	author = {Buynevich, I. V. and Damu{\v s}yte, A. and Bitinas, A. and Olenin, S. and Ma{\v z}eika, J. and Petro{\v s}ius, R.},
	editor = {Buynevich, I. V.}
}
@article {181,
	title = {The Posidonia oceanica marine sedimentary record: A Holocene archive of heavy metal pollution},
	journal = {Science of The Total Environment},
	volume = {409},
	year = {2011},
	note = {id: 2098},
	pages = {4831-4840},
	abstract = {The study of a Posidonia oceanica mat (a peat-like marine sediment) core has provided a record of changes in heavy metal abundances (Fe, Mn, Ni, Cr, Cu, Pb, Cd, Zn, As and Al) since the Mid-Holocene (last 4470 yr) in Portlligat Bay (NW Mediterranean). Metal contents were determined in P. oceanica. Both, the concentration records and the results of principal components analysis showed that metal pollution in the studied bay started ca. 2800 yr BP and steadily increased until present. The increase in Fe, Cu, Pb, Cd, Zn and As concentrations since ca. 2800 yr BP and in particular during Greek (ca. 2680{\textendash}2465 cal BP) and Roman (ca. 2150{\textendash}1740 cal BP) times shows an early anthropogenic pollution rise in the bay, which might be associated with large- and short-scale cultural and technological development. In the last ca. 1000 yr the concentrations of heavy metals, mainly derived from anthropogenic activities, have significantly increased (e.g. from ~ 15 to 47 μg g- 1 for Pb, ~ 23 to 95 μg g- 1 for Zn and ~ 8 to 228 μg g- 1 for As). Our study demonstrates for the first time the uniqueness of P. oceanica meadows as long-term archives of abundances, patterns, and trends of heavy metals during the Late Holocene in Mediterranean coastal ecosystems.},
	issn = {0048-9697},
	doi = {10.1016/j.scitotenv.2011.08.001},
	url = {http://www.sciencedirect.com/science/article/pii/S0048969711008242},
	author = {Serrano, O. and Mateo, M. A. and Due{\~n}as-Boh{\'o}rquez, A. and Renom, P. and L{\'o}pez-S{\'a}ez, J. A. and Mart{\'\i}nez Cortizas, A.}
}
@article {223,
	title = {Precipitation as the main driver of Neoglacial fluctuations of Gualas glacier, Northern Patagonian Icefield},
	journal = {Climate of the Past},
	year = {2011},
	note = {id: 2119},
	abstract = {Glaciers are frequently used as indicators of climate change. However, the link between past glacier fluctuations and climate variability is still highly debated. Here, we investigate the mid- to late-Holocene fluctuations of Gualas Glacier, one of the northernmost outlet glaciers of the Northern Patagonian Icefield, using a multi-proxy sedimentological and geochemical analysis of a 15 m long fjord sediment core from Golfo Elefantes, Chile, and historical documents from early Spanish explorers. Our results show that the core can be sub-divided in three main lithological units that were deposited under very different hydrodynamic conditions. Between 5400 and 4180 cal yr BP and after 750 cal yr BP, sedimentation in Golfo Elefantes was characterized by the rapid deposition of fine silt, most likely transported by fluvio-glacial processes. By contrast, the sediment deposited between 4130 and 850 cal yr BP is composed of poorly sorted sand that is free of shells. This interval is particularly marked by high magnetic susceptibility values and Zr concentrations, and likely reflects a major advance of Gualas glacier towards Golfo Elefantes during the Neoglaciation. Several thin silt layers observed in the upper part of the core are interpreted as secondary fluctuations of Gualas glacier during the Little Ice Age, in agreement with historical and dendrochronological data. Our interpretation of the Golfo Elefantes glaciomarine sediment record in terms of fluctuations of Gualas glacier is in excellent agreement with the glacier chronology proposed for the Southern Patagonian Icefield, which is based on terrestrial (moraine) deposits. By comparing our results with independent proxy records of precipitation and sea surface temperature, we demonstrate that the fluctuations of Gualas glacier during the last 5400 yr were mainly driven by changes in precipitation in the Andes.},
	doi = {10.5194/cpd-7-2937-2011},
	author = {Bertrand, S. and Hughen, K. A. and Lamy, F. and Stuut, J. B. W. and Torrejon, F. and Lange, C. B.}
}
@article {212,
	title = {The provenance of vegetation and environmental signatures encoded in vascular plant biomarkers carried by the Ganges{\textendash}Brahmaputra rivers},
	journal = {Earth and Planetary Science Letters},
	volume = {304},
	year = {2011},
	note = {id: 2187},
	pages = {1-12},
	abstract = {Organic matter carried by rivers and deposited in continental and marine sediments contains valuable information on past environmental conditions and their impact on the terrestrial biosphere. In order to use sedimentary records to reconstruct past environmental conditions on the continents, such as vegetation cover and type, or precipitation intensity, we need to understand the provenance of the organic signatures and how they are transferred, and potentially modified, by fluvial transport to the sedimentary reservoir. In particular, we need to understand how environmental conditions are imprinted in the composition of riverine particulate organic carbon. Here we investigate the stable carbon and hydrogen isotopic signatures of vascular plant leaf wax biomarkers in the modern-day Ganges and Brahmaputra river complex, one of the largest fluvial systems on Earth. The distribution of n-alkanes and n-alkanoic acids in Ganges{\textendash}Brahmaputra river sediments suggests that vascular plant inputs are consistently a significant component of the organic carbon pool. Molecular δ13C measurements reveal that C3 vegetation inputs delivered by the Himalayan rivers are partly degraded and replaced by mixed C3/C4 vegetation input in the floodplain. The hydrogen isotopic composition of long-chain (C24+) n-alkanoic acids, in combination with their stable C isotopic composition, provides constraints on the isotopic composition of the environmental water used by higher plants within the drainage basin. Calculated compositions compare well with the depleted δD isotopic ratios of the river water during the summer monsoon, suggesting that H-isotopic compositions of long-chain alkanoic acids are a valuable proxy for the composition of summer monsoon moisture in the Ganges{\textendash}Brahmaputra basin. Detailed studies of the {\textquotedblleft}isotopic anatomy{\textquotedblright} of modern river systems are critical for informed interpretation of marine sedimentary records in river-influenced continental margins.},
	issn = {0012-821X},
	doi = {10.1016/j.epsl.2011.02.003},
	url = {http://www.sciencedirect.com/science/article/pii/S0012821X11000744},
	author = {Galy, Valier and Eglinton, Timothy and France-Lanord, Christian and Sylva, Sean}
}
@article {179,
	title = {Pulleniatina Minimum Events in the Andaman Sea (NE Indian Ocean): Implications for winter monsoon and thermocline changes},
	journal = {Marine Micropaleontology},
	volume = {81},
	year = {2011},
	note = {id: 2159},
	pages = {88-94},
	abstract = {The late Quaternary record of Pulleniatina obliquiloculata was investigated from two well dated sediment cores from the Andaman Sea (NE Indian Ocean) to examine its paleoceanographic significance and the presence of the Pulleniatina Minimum Events (PME) in the western North Pacific. As in the Pacific, our study shows that PMEs exist in the Indian Ocean albeit with a lower intensity. The Holocene PME occurs between 4.5 and 3.0 cal ka BP with a considerable reduction in P. obliquiloculata abundance, and which matches well with the Pacific records influenced by the Kuroshio Current. Additionally, two significant minimum events of P. obliquiloculata are also seen during the Younger Dryas (YD) and late Last Glacial Maximum (LGM, 20{\textendash}18 cal ka BP). Overall, the PMEs of the Andaman Sea are not current driven events like in the western Pacific margin either by the weakening of the Kuroshio Current or reduced winter SSTs. The PMEs of the Andaman Sea are characterised by lower abundances of thermocline species indicating the increased depth of the thermocline (DOT) and reduced winter SSTs mainly during the minimum events of the YD and late LGM. The high SSTs during the Holocene PME make this event a mystery. However, the presence of PMEs in the Andaman Sea suggests that these events are not confined to areas influenced by the Kuroshio Current but may be responding to a broad scale oceanographic{\textendash}climatic process or mechanism which needs to be explored with a detailed study.},
	issn = {0377-8398},
	doi = {10.1016/j.marmicro.2011.09.001},
	url = {http://www.sciencedirect.com/science/article/pii/S0377839811000909},
	author = {Sijinkumar, A. V. and Nath, B. Nagender and Possnert, G. and Aldahan, A.}
}
@article {1835,
	title = {The Passage of the Bomb Radiocarbon Pulse into the Pacific Ocean},
	journal = {Radiocarbon},
	volume = {52},
	year = {2010},
	note = {Sp. Iss. 2696jo
Times Cited:7
Cited References Count:38
},
	month = {2010},
	pages = {1182-1190},
	abstract = {We report and compare radiocarbon observations made on 2 meridional oceanographic sections along 150 degrees W in the South Pacific in 1991 and 2005. The distributions reflect the progressive penetration of nuclear weapons-produced (14)C into the oceanic thermocline. The changes over the 14 yr between occupations are demonstrably large relative to any possible drift in our analytical standardization. The computed difference field based on the gridded data in the upper 1600 m of the section exhibits a significant decrease over time (approaching 40 to 50 parts per thousand in Delta(14)C) in the upper 200-300 m, consistent with the decadal post-bomb decline in atmospheric (14)C levels. A strong positive anomaly (increase with time), centered on the low salinity core of the Antarctic Intermediate Water (AAIW), approaches 50-60 parts per thousand in Delta(14)C, a clear signature of the downstream evolution of the (14)C transient in this water mass. We use this observation to estimate the transit time of AAIW from its "source region" in the southeast South Pacific and to compute the effective reservoir age of this water mass. The 2 sections show small but significant changes in the abyssal (14)C distributions. Between 1991 and 2005, Delta(14)C has increased by 9 parts per thousand below 2000 m north of 55 degrees S. This change is accompanied overall by a modest increase in salinity and dissolved oxygen, as well as a slight decrease in dissolved silica. Such changes are indicative of greater ventilation. Calculation of "phosphate star" also indicates that this may be due to a shift from the Southern Ocean toward North Atlantic Deep Water as the ventilation source of the abyssal South Pacific.},
	keywords = {AMS, antarctic intermediate water, anthropogenic co2, atlantic, c-14 data, carbon, distributions, graphite, south-pacific, tritium},
	isbn = {0033-8222},
	author = {Jenkins, W. J. and Elder, K. L. and McNichol, A. P. and von Reden, K.}
}
@article {513,
	title = {Photosynthetic isotope biosignatures in laminated micro-stromatolitic and non-laminated nodules associated with modern, freshwater microbialites in Pavilion Lake, BC RID B-8520-2011},
	journal = {Chemical Geology},
	volume = {274},
	year = {2010},
	note = {id: 2056; PT: J; UT: WOS:000279094700005},
	pages = {56-67},
	abstract = {The influence of microbial activity on carbonate precipitation was investigated within micro-stromatolitic nodules associated with modem, freshwater microbialites located in Pavilion Lake, B.C. Observed carbonate delta(13)C values enriched by up to +3.6 parts per thousand as compared to predicted abiotic carbonate delta(13)C values from measured dissolved inorganic carbon (mean -1.2 parts per thousand, n=13) were consistent with microbial photosynthetic influence on in situ precipitation within the nodule microenvironment. Estimated carbonate precipitation temperatures within the nodules based on delta(18)O were consistent with recorded summertime temperatures, indicative of precipitation during the period of highest levels of photosynthetic activity. Low delta(13)C values of organic matter within the nodules (-30.6 to 21.1 parts per thousand) and an average inorganic to organic carbon Delta delta(13)C value of 26.8 parts per thousand reflected the preferential uptake of (12)C during non-CO(2) limited photosynthesis, supporting the generation of (13)C-enriched DIC. Microelectrode profiles through the nodules showed oxygen supersaturation of up to similar to 275\%, elevated pH compared to ambient water and a lack of any observable dissolved sulphide, Mn or Fe further indicated that photosynthetic activity was the predominant metabolic process within the nodule during light exposure. Microbial phospholipid fatty acid profiles of the nodule communities were indicative of bacteria rather than eukaryotes and PLFA delta(13)C values were depleted relative to the bulk cell by 2.6-6.6 parts per thousand, consistent with a predominance of photosynthetic microbes. Scanning electron microscopy images of the relationship between carbonate minerals and filaments indicated that carbonate precipitation had occurred in situ due to microbial influences on the geochemistry within the nodule microenvironment rather than due to cell surface effects or trapping and binding. The observation of photosynthetically induced (13)C-enrichment of in situ precipitated carbonate within the nodule microenvironment is thus a biosignature of the activity of these surface communities and is consistent with the hypothesized role of biology in the formation of microbialites. (C) 2010 Elsevier B.V. All rights reserved.},
	issn = {0009-2541},
	doi = {10.1016/j.chemgeo.2010.03.016},
	author = {Brady, A. L. and Slater, G. F. and Omelon, C. R. and Southam, G. and Druschel, G. and Andersen, D. T. and Hawes, I. and Laval, B. and Lim, D. S. S.}
}
@article {314,
	title = {Postglacial changes in El Nino and La Nina behavior},
	journal = {Geology},
	volume = {38},
	year = {2010},
	note = {id: 1985; PT: J; UT: WOS:000273346200011},
	pages = {43-46},
	abstract = {Paleoclimate reconstructions suggest distinctive changes in the Ell Nino-Southern Oscillation (ENSO), the dominant mode of tropical climate variability, over the last glacial cycle and throughout the Holocene. However, to the best of our knowledge, no studies provide parallel reconstructions of warm (El Nino) and cold (La Nina) phase variability, thus precluding distinction between variations in ENSO activity and the mean state of the tropical Pacific. Here we provide the first such records, generated using molecular organic geochemical proxies in a sediment core from the Peru margin region. The opposing influences of El Nino and La Nina on coastal upwelling and phytoplankton community structure produce distinct sedimentary sterol records describing the evolution of each ENSO phase. We document changes in surface ocean productivity on the Peru margin over the past 16 ka that indicate enhanced La Nina-like conditions alone during deglaciation, but concomitant increases in both El Nino and La Nina activity during the past 2 ka. We propose that the preponderance of La Nina-like conditions prior to 11.5 ka reflects the influence of waning glacial boundary conditions. By contrast, warm and cold phase covariability during the late Holocene suggests centennial-scale changes in ENSO activity, rather than the Pacific mean state, driven by tropical insolation.},
	issn = {0091-7613},
	doi = {10.1130/G30366.1},
	author = {Makou, Matthew C. and Eglinton, Timothy I. and Oppo, Delia W. and Hughen, Konrad A.}
}
@article {241,
	title = {The potential of New Zealand kauri (Agathis australis) for testing the synchronicity of abrupt climate change during the Last Glacial Interval (60,000-11,700 years ago)},
	journal = {Quaternary Science Reviews},
	volume = {29},
	year = {2010},
	note = {id: 1982; PT: J; UT: WOS:000285222000001},
	pages = {3677-3682},
	abstract = {The latter part of the Last Glacial Interval (LGI; 60,000 to 11,700 years ago) experienced a range of climatic and environment extremes. To elucidate the mechanisms of these changes requires records of past variability that are precisely dated and correlated on the same absolute timescale. However, despite decades of research, it is still not possible to align most marine and terrestrial records of past change with ice-core records, largely because of ongoing uncertainties over the conversion of pre-Holocene (14)C ages on to a calendar timescale and uncertainties with in ice-core chronologies. As a result, it is equivocal whether climate changes in both hemispheres during the LGI led, lagged or were synchronous with one another. A decadally-resolved radiocarbon calibration is urgently required to test these models of the Earth system. Here we report radiocarbon measurements obtained from subfossil New Zealand kauri (Agathis australis) spanning a collective 3500 years dated between 25,000 and 45,000 years ago. The results are compared to the recently published international calibration curve IntCal09 and to the marine Cariaco Basin datasets. We show that kauri have considerable potential for development of a Southern Hemisphere component of a unified global calibration curve suite, and that tree-ring sequences can be superposed on other radiocarbon records to constrain atmospheric marine offsets and precisely test the synchronicity of abrupt climate change. (C) 2010 Elsevier Ltd. All rights reserved.},
	issn = {0277-3791},
	doi = {10.1016/j.quascirev.2010.08.017},
	author = {Turney, Chris S. M. and Fifield, L. Keith and Hogg, Alan G. and Palmer, Jonathan G. and Hughen, Konrad and Baillie, Mike G. L. and Galbraith, Rex and Ogden, John and Lorrey, Andrew and Tims, Stephen G. and Jones, Richard T.}
}
@article {661,
	title = {Palaeoecological potential of the marine organic deposits of Posidonia oceanica: A case study in the NE Iberian Peninsula},
	journal = {Palaeogeography Palaeoclimatology Palaeoecology},
	volume = {271},
	year = {2009},
	note = {402ksTimes Cited:20Cited References Count:55},
	month = {Jan 15},
	pages = {215-224},
	abstract = {A high-resolution sedimentary sequence sampled from the Portlligat Bay (NE Iberian Peninsula) has been studied in order to assess its palaeoecological potential. This sedimentary sequence is considered a very particular one, as it is a peat-like deposit derived from the accumulation of the belowground dead parts of the marine phanerogam Posidonia oceanica through the last 1600 years. This study represents the first attempt to explore the palaeoecological potential of such deposits from a palynological point of view, and has allowed the reconstruction of the vegetation dynamics and changes, human impact and the palaeoclimatic characteristics, demonstrating the value of these sedimentary records in palaeopalynological studies. (C) 2008 Elsevier B.V. All rights reserved.},
	issn = {0031-0182},
	doi = {10.1016/j.palaeo.2008.10.020},
	author = {L{\'o}pez-S{\'a}ez, J. A. and Lopez-Merino, L. and Mateo, M. A. and Serrano, O. and Perez-Diaz, S. and Serrano, L.}
}
@article {519,
	title = {Palaeoenvironmental changes from pollen record in deep sea core PC-1 from northern Okinawa Trough, East China Sea during the past 24 ka},
	journal = {Chinese Science Bulletin},
	volume = {54},
	year = {2009},
	note = {id: 1931; PT: J; UT: WOS:000271175500023},
	pages = {3739-3748},
	abstract = {A pollen record of core PC-1 from the northern Okinawa Trough, East China Sea (ECS), provides information on vegetation and climate changes since 24 cal. kaBP. A total of 103 samples were palynologically analyzed at 8 cm intervals with a time resolution of 230 a. Four pollen zones are recognized: zone I (812-715 cm, 24.2-21.1 cal. kaBP), zone II (715-451 cm, 21.1-15.2 cal. kaBP), zone III (451-251 cm, 15.2-10.8 cal. kaBP), zone IV (251-0 cm, 10.8-0.3 cal. kaBP), corresponding to Late MIS 3, Last Glacial Maximum (LGM), deglaciation and Holocene, respectively. The LGM is characterized by the dominance of herbs, mainly Artemisia, and high pollen influx, implying an open vegetation on the exposed continental shelf and a cool and dry climate. The deglaciation is a climate warming stage with Pinus percentage increased and Artemisia percentage decreased and a rapid sea-level rise. The Holocene is characterized by predominance of tree pollen with rapid increase in Castanea-Castanopsis indicating the development of mixed evergreen and deciduous broad-leaved forest and a warm, humid climate. Low pollen influx during the Holocene probably implies submergence of the continental shelf and retreat of the pollen source area. The vegetation indicated by pollen assemblage found in this upper zone is consistent with the present vegetation found in Kyushu, Japan. Originating from the humid mountain area of North Luzon of the Philippines, Tasmania and New Zealand, Phyllocladus with sporadic occurrence throughout PC-1 core probably suggests the influence of Palaeo-Kuroshio Current or intense summer monsoon. The observed changes in Pinus and Herbs percentage indicate fluctuations of the sea level, and high Pinus percentage corresponds to high sea level. Spectrum analysis of the pollen percentage record reveals many millennial-scale periodicities, such as periodicities of 6.8, 3.85 2.2, 1.6 ka.},
	issn = {1001-6538},
	doi = {10.1007/s11434-009-0227-y},
	author = {Xu, HongYan and Chang, Fengming and Luo, YunLi and Sun, XiangJun}
}
@article {304,
	title = {Palaeohydrology of Kangerlussuaq (Soendre Stroemfjord), West Greenland during the last similar to 8000 years},
	journal = {Holocene},
	volume = {19},
	year = {2009},
	note = {id: 2218; Source type: scholarlyjournals; Object type: Article; Object type: Feature; CSAUnique: OB-MD-0009349512; AccNum: 9048978; InputCenter: CS0919076; DOI: 10.1177/0959683608096601; ISSN: 0959-6836; ElecISSN: 1477-0911; Peer Reviewed: true},
	pages = {91-104},
	abstract = {Major fluctuations of hydroclimate in West Greenland are recorded in palaeoshoreline terraces that encircle several lakes near Kangerlussuaq, Greenland (67 degree 01{\textquoteright}N, 50 degree 40{\textquoteright}W). Geomorphic and stratigraphic analyses were used to construct a lake-level curve for Hunde S0, a large closed-basin lake in this region. Changes in lake volume associated with lake-level fluctuations were calculated, and a water-balance model was used to determine the primary factors influencing lake volume and the changes in those factors necessary to affect reconstructed lake-level change. Sensitivity tests suggest that mean annual precipitation and the relative proportion of summer versus winter precipitation are the primary climate drivers of lake-level change. Temperature effects are less important unless coupled with changes in one of the other variables. Two pluvial periods occurred centred around 4600 and 2000 cal. yr BP, with mean annual precipitation estimated at 130 mm and 70 mm higher than modern, respectively. In contrast, a low-stand prior to 6070 cal. yr BP with water levels as much as 18 m below modern was a result of summer temperatures similar to 2-3 degree above modern, coupled with a 14 day increase in the length of the ice-off period and a reduction in mean annual precipitation of similar to 80 mm relative to modern.},
	issn = {0959-6836},
	doi = {10.1177/0959683608096601},
	author = {Aebly, F. A. and Fritz, S. C.}
}
@inbook {1402,
	title = {A Paleocoastal Shell Midden at Seal Cave (CA-SMI-604), San Miguel Island, California},
	booktitle = {Proceedings of the Seventh California Islands Symposium},
	year = {2009},
	note = {id: 2075},
	month = {2009},
	pages = {33-42},
	publisher = {Institute for Wildlife Studies},
	organization = {Institute for Wildlife Studies},
	address = {Arcata, CA},
	author = {Erlandson, Jon M. and Braje, Todd J. and Rick, Torben C. and Davis, Troy and Southon, Troy},
	editor = {Damiani, Christine C.}
}
@article {525,
	title = {Paleolimnological records of recent glacier recession in the Rwenzori Mountains, Uganda-D. R. Congo},
	journal = {Journal of Paleolimnology},
	volume = {41},
	year = {2009},
	note = {id: 2048; PT: J; UT: WOS:000262651500002},
	pages = {253-271},
	abstract = {The status of tropical glaciers is enormously important to our understanding of past, present, and future climate change, yet lack of continuous quantitative records of alpine glacier extent on the highest mountains of tropical East Africa prior to the 20th century has left the timing and drivers of recent glacier recession in the region equivocal. Here we investigate recent changes (the last 150-700 years) in lacustrine sedimentation, glacier extent, and biogeochemical processes in the Rwenzori Mountains (Uganda- Democratic Republic of Congo) by comparing sedimentological (organic and siliciclastic component determined by loss-on-ignition; LOI) and organic geochemical profiles (carbon and nitrogen abundance, ratio, and isotopic composition of sedimentary organic matter) from lakes occupying presently glaciated catchments against similar profiles from lakes located in catchments lacking glaciers. The siliciclastic content of sediments in the {\textquoteright}glacial lakes{\textquoteright} significantly decreases towards the present, whereas {\textquoteright}non-glacial lakes{\textquoteright} generally show weak trends in their siliciclastic content over time, demonstrating that changes in the siliciclastic content of glacial lake sediments primarily record fluctuations in glacier extent. Radiometric dating of our sediment cores indicates that prior to their late 19th-century recession Rwenzori glaciers stood at expanded {\textquoteright}Little Ice Age{\textquoteright} positions for several centuries under a regionally dry climate regime, and that recession was underway by 1870 AD, during a regionally wet episode. These findings suggest that the influence of late 19th century reductions in precipitation in triggering Rwenzori glacier recession is weaker than previously thought. Our organic geochemical data indicate that glacier retreat has significantly affected carbon cycling in Afroalpine lakes, but trends in aquatic ecosystem functioning are variable among lakes and require more detailed analysis.},
	issn = {0921-2728},
	doi = {10.1007/s10933-008-9224-4},
	author = {Russell, J. and Eggermont, H. and Taylor, R. and Verschuren, D.}
}
@article {478,
	title = {Partitioning of organic matter in continental margin sediments among density fractions},
	journal = {Marine Chemistry},
	volume = {115},
	year = {2009},
	note = {id: 1844; 521ZI Times Cited:0 Cited References Count:99Y},
	pages = {211-225},
	abstract = {Hydrodynamic processes sort and redistribute organic matter (OM) and minerals on continental margins. Density fractionations were conducted on sediments from diverse margins (Mexico margin, Gulf of Mexico, Mississippi River delta, Eel River margin) to investigate the nature, provenance and age of OM among density fractions. Mass. elemental (C and N), lignin, and surface area distributions, as well as stable carbon and radiocarbon isotopic compositions were measured, The lowest density fractions (2.5 g cm(-3)) were OC-poor (\%OC -200 parts per thousand). Ratios of vanillic acid to vanillin (Ad/Al)v among lignin oxidation products increase with increasing particle density suggesting variable lignin sources or selective degradation of lignin among the different density fractions. (C) 2009 Elsevier B.V. All rights reserved.},
	issn = {0304-4203},
	doi = {10.1016/j.marchem.2009.08.005},
	author = {Wakeham, S. G. and Canuel, E. A. and Lerberg, E. J. and Mason, P. and Sampere, T. P. and Bianchi, T. S.}
}
@article {362,
	title = {Permanent storage of carbon dioxide in geological reservoirs by mineral carbonation},
	journal = {Nature Geoscience},
	volume = {2},
	year = {2009},
	note = {id: 844; 525TO Times Cited:10 Cited References Count:49Y},
	pages = {837-841},
	abstract = {Anthropogenic greenhouse-gas emissions continue to increase rapidly despite efforts aimed at curbing the release of such gases. One potentially long-term solution for offsetting these emissions is the capture and storage of carbon dioxide. In principle, fluid or gaseous carbon dioxide can be injected into the Earth{\textquoteright}s crust and locked up as carbonate minerals through chemical reactions with calcium and magnesium ions supplied by silicate minerals. This process can lead to near-permanent and secure sequestration, but its feasibility depends on the ease and vigour of the reactions. Laboratory studies as well as natural analogues indicate that the rate of carbonate mineral formation is much higher in host rocks that are rich in magnesium-and calcium-bearing minerals. Such rocks include, for example, basalts and magnesium-rich mantle rocks that have been emplaced on the continents. Carbonate mineral precipitation could quickly clog up existing voids, presenting a challenge to this approach. However, field and laboratory observations suggest that the stress induced by rapid precipitation may lead to fracturing and subsequent increase in pore space. Future work should rigorously test the feasibility of this approach by addressing reaction kinetics, the evolution of permeability and field-scale injection methods.},
	issn = {1752-0894},
	doi = {10.1038/Ngeo683},
	author = {Matter, J. M. and Kelemen, P. B.}
}
@article {481,
	title = {Photochemical changes in chemical markers of sedimentary organic matter source and age},
	journal = {Marine Chemistry},
	volume = {113},
	year = {2009},
	note = {id: 793; 425QO Times Cited:0 Cited References Count:40Y},
	pages = {123-128},
	abstract = {Several chemical markers of organic matter source and age are shown to be susceptible to light-induced alteration. To test for the photochemical lability of markers previously employed for sediments from the Louisiana Coastal zone, we subjected sediments under resuspension conditions to Simulated Sunlight, and monitored changes in ON and Br:OC ratios, delta C-13, Delta C-14, and lignin composition. Markers of terrigenous origin (high C:N, lignin) decreased and delta C-13 became enriched in sediments containing primarily terrigencrus organic matter, while a marker of marine organic matter (Br:OC) decreased in samples containing significant contributions from this source. Preferential loss of C-14 from all sediments indicated enhanced photochemical lability of organic matter of relatively recent origin, consistent with the changes in chemical markers. Most, but not all, experimental alterations are consistent with field distributions of these markers. Relatively small experimental changes in the markers in combination with confounding processes in the environment, however. prevent these parallel trends from providing any more than a consistency test for the importance of photochemical reactions in this region. (C) 2009 Elsevier B.V. All rights reserved.},
	issn = {0304-4203},
	doi = {10.1016/j.marchem.2009.01.006},
	author = {Mayer, L. M. and Schick, L. L. and Bianchi, T. S. and Wysocki, L. A.}
}
@article {330,
	title = {Pleistocene Megafaunal Collapse, Novel Plant Communities, and Enhanced Fire Regimes in North America},
	journal = {Science},
	volume = {326},
	year = {2009},
	note = {id: 769; 521UW Times Cited:4 Cited References Count:30Y},
	pages = {1100-1103},
	abstract = {Although the North American megafaunal extinctions and the formation of novel plant communities are well-known features of the last deglaciation, the causal relationships between these phenomena are unclear. Using the dung fungus Sporormiella and other paleoecological proxies from Appleman Lake, Indiana, and several New York sites, we established that the megafaunal decline closely preceded enhanced fire regimes and the development of plant communities that have no modern analogs. The loss of keystone megaherbivores may thus have altered ecosystem structure and function by the release of palatable hardwoods from herbivory pressure and by fuel accumulation. Megafaunal populations collapsed from 14,800 to 13,700 years ago, well before the final extinctions and during the Bolling-Allerod warm period. Human impacts remain plausible, but the decline predates Younger Dryas cooling and the extraterrestrial impact event proposed to have occurred 12,900 years ago.},
	issn = {0036-8075},
	doi = {10.1126/science.1179504},
	author = {Gill, J. L. and Williams, J. W. and Jackson, S. T. and Lininger, K. B. and Robinson, G. S.}
}
@article {1854,
	title = {Pre-Columbian settlement of Carriacou, West Indies},
	journal = {Journal of Field Archaeology},
	volume = {34},
	year = {2009},
	note = {id: 830},
	month = {2009},
	pages = {247-266},
	author = {Fitzpatrick, S. M. and Kappers, M. and Kaye, Q. and Giovas, C. M. and LeFebvre, M. J. and Harris, M. H. and Burnett, S. and Pavia, J. A. and Marsaglia, K. and Feathers, J.}
}
@article {284,
	title = {Processes That Initiate Turbidity Currents and Their Influence on Turbidites: A Marine Geology Perspective},
	journal = {Journal of Sedimentary Research},
	volume = {79},
	year = {2009},
	note = {id: 877; 451YQ Times Cited:2 Cited References Count:124Y},
	pages = {347-362},
	abstract = {How the processes that initiate turbidity currents influence turbidite deposition is poorly understood, and many discussions in the literature rely on concepts that are overly simplistic. Marine geological studies provide information on the initiation and flow path of turbidity currents, including their response to gradient. In case studies of late Quaternary turbidites on the eastern Canadian and western U.S. margins, initiation processes are inferred either from real-time data for historical flows or indirectly from the age and contemporary paleogeography, erosional features, and depositional record. Three major types of initiation process are recognized: transformation of failed sediment, hyperpycnal flow from rivers or ice margins, and resuspension of sediment near the shelf edge by oceanographic processes. Many high-concentration flows result from hyperpycnal supply of hyperconcentrated bedload, or liquefaction failure of coarse-grained sediment, and most tend to deposit in slope conduits and on gradients},
	issn = {1527-1404},
	doi = {10.2110/Jsr.2009.046},
	author = {Piper, D. J. W. and Normark, W. R.}
}
@mastersthesis {1324,
	title = {Proxy Records of Paleohurricanes for the Western and Southern Caribbean},
	volume = {Dissertation/Thesis},
	year = {2009},
	month = {2009},
	pages = {702},
	school = {Louisiana State University},
	address = {Baton Rouge, Louisiana},
	author = {McCloskey, T. A.}
}
@article {367,
	title = {Palaeoclimate - Tree rings floating on ice cores},
	journal = {Nature Geoscience},
	volume = {1},
	year = {2008},
	note = {id: 1984; PT: J; UT: WOS:000256433500013},
	pages = {218-219},
	issn = {1752-0894},
	doi = {10.1038/ngeo167},
	author = {Reimer, Paula J. and Hughen, Konrad A.}
}
@article {1875,
	title = {PALEOPRODUCTIVITY VARIATION AND ITS CORRELATION WITH CLIMATE CHANGES:AN APPROACH OF LONG-CHAIN ALKENONE},
	journal = {Quaternary Sciences},
	volume = {28},
	year = {2008},
	note = {id: 1968},
	month = {2008},
	pages = {482-490},
	abstract = {The accurate reconstruction of paleoproductivity is critical for understanding the carbon cycle in the past and for predicting the fate of anthropogenic carbon in the future.Biomarkers in marine sediments are useful tools for paleoenvirionment study and have been used as proxies for total and specific phytoplankton group paleoproductivity.Based on 17 AMS14C age controlling points,we report here molecular abundance data for alkenone and organic carbon isotopic data for bulk samples from a giant piston core MD05-2908(24{\textdegree}48.04{\textquoteright}N,122{\textdegree}29.35{\textquoteright}E).The aim is to evaluate the paleoproductivity and interpret the climatic-induced controlling factors for the past 7000aB.P.The results showed that the paleoproductivity in the South Okinawa Trough(SOT)fluctuated frequently in the past 7000aB.P.By correlating with the Titanium records from Huguang Marr and Cariaco Basin,we found out that the paleoproductivity was largely controlled by the latitude migration of ITCZ.The rapid southward shift of the ITCZ might have caused longer staying of the rainfall front in the source supply area,thus,led to intensified erosion,brought increased terrigenous material into the ECS and SOT by fluvial the terrigenous materil delivers to the SOT.Terrigenous input on the one hand might have fertilized the sea surface of SOT and stimulated the production,but on the other hand might have diluted the signal of marine derived input to the sediments.The lower production periods in the SOT correlated well with those ice-drift episodes recorded in the high latitude Atlantic Ocean,suggesting the strong relationships between high and low latitude climate.},
	keywords = {Alkenone, ITCZ, paleoproductivity, SOT, the last 7000aB.P.},
	isbn = {1001-7410},
	author = {Nan, Q. and Li, T. and Chen, Jinxia and Yu, X. and Li, Q.}
}
@mastersthesis {2534,
	title = {Paleotsunami History Recorded in Holocene Coastal Lagoon Sediments, Southeastern Sri Lanka},
	volume = {Master of Science (MS)},
	year = {2008},
	month = {08/2008},
	school = {University of Miami},
	address = {Miami, FL},
	abstract = {Tsunamis are low amplitude, large wavelength waves that can significantly impact coastal regions. Although their destructive impacts are clear from recent events, the frequency with which tsunamis occur is less well constrained. To better understand the tsunami history and coastal impacts in Sri Lanka, this study compares sediments deposited by the December 26, 2004, tsunami to older lagoon sediments in search of evidence for paleotsunami deposits. Results from this study illustrate that the coastal lagoons in Sri Lanka preserve tsunami deposits and can provide the first steps towards constraining the paleotsunami history of the Indian Ocean. Because Sri Lanka is a far field location relative to the Sumatra-Andaman subduction zone, the preserved tsunami deposits are likely mega-tsunami events similar in size and destruction to the December 26, 2004, tsunami. The December 26, 2004, M 9.1?9.3 Sumatra-Andaman earthquake generated a massive tsunami that propagated throughout the Indian Ocean, causing extreme coastal inundation and destruction. The southeastern coastline of Sri Lanka was impacted by the 2004 tsunami where between one and three waves inundated coastal villages, lagoons, and lowlands, killing more than 35,000 people. Karagan Lagoon, located on the southeastern coast of Sri Lanka, was impacted by two waves from this tsunami. Although the lagoon commonly is dominated by organic-rich, siliciclastic clays, silts, and fine sands, the 2004 tsunami deposited a distinct layer of coarse quartz-dominated sand between 1 and 22 cm thick. The base of the 2004 deposit is sharp and erosional and some layers feature faint subparallel laminations. The 2004 tsunami deposit is generally continuous, fines landward, and is confined to the eastern portion of Karagan Lagoon, in the direction from which the tsunami arrived. Sri Lankan lore, in conjunction with reconstructed historical earthquake data, suggests that other tsunamis likely affected Sri Lanka in the past. To test this, twenty-two 1?4 m sediment cores were collected from Karagan Lagoon, providing key information for unraveling the pre-2004 tsunami history of southeastern Sri Lanka. At depth, sixteen cores from Karagan Lagoon contain as many as ten distinct sand layers, including the deposit from the 2004 tsunami. These cores feature siliciclastic clays, silts, and fine sands that dominate the background lagoonal sedimentation that are punctuated by coarse sand layers. These sand-rich layers feature sharp, erosional bases, coarsen and fine upwards, vary in thickness from 1 to 22 cm, and include varying percentages of fine to very coarse sand, with a low-abundance of silt and clay. In the best constrained interval, three coarse sand layers include composition, grain size, grading, and sedimentary structures similar to the sediments deposited by the December 26, 2004, tsunami. The layers are identified in five of the twenty-two cores, although the thicknesses vary. Six additional less well constrained sand layers are present in four of the twenty-two cores. Cores located closer to the lagoon mouth and the eastern coastline (the direction from which the 2004 tsunami arrived) contain more sand layers than cores farther away from the tsunami wave entry point. On the basis of their sedimentary structures, geometry, and extent, these sandy layers are interpreted to represent paleotsunami deposits. AMS radiocarbon dating was used to date the bulk organic sediment from above, between, and below the ten paleotsunami layers in sediment cores from Karagan Lagoon to constrain the timing of events in southeastern Sri Lanka. Material from within the deposit was not dated because it was likely transported from various sources during the event and thus does not represent the age of the tsunami. AMS radiocarbon dates from above and below the paleotsunami layers were calibrated from radiocarbon years before present to calendar years before present (Cal YBP) using OxCal v. 4.0 (Bronk Ramsey, 1995; Bronk Ramsey, 2001) with calibration curve IntCal04 (Reimer et al., 2004). The constraining time intervals of tsunami deposits II?VI were averaged to yield deposits of ages 226, 1641, 4198, 4457, 4924 Cal YBP. Tsunamis VII?X only had sediment dated immediately below the deposit and therefore were deposited prior to 6249, 6455, 6665, and 6840 Cal YBP. In total, ten tsunami deposits, including the 2004 event, are preserved in Karagan Lagoon on the southeastern coast of Sri Lanka. The Karagan Lagoon paleotsunami deposits provide constraints on the recurrence interval of tsunamis similar in magnitude to the 2004 event. The uppermost paleotsunami units were deposited 226, 1641, 4198, 4457, and 4924 Cal YBP, based on AMS radiocarbon dating. Thus, including the 2004 event, six tsunamis affected Karagan Lagoon in the past 5500 years, yielding a recurrence interval of approximately 916 years. Three of the six events, however, occur between ~4000 and 5500 years yielding a recurrence interval of approximately 500 years for this 1500 year period. Four additional older paleotsunami deposits occur in the deeper sections of the cores and were deposited prior to 6249, 6455, 6665, and 6840 Cal YBP, yielding a recurrence interval of approximately 200 years for this time period. Assuming that Karagan Lagoon contains a complete record of tsunami events, the recurrence of tsunamis similar in magnitude to the December 26, 2004, event can occur as often as 200 years. This ?recurrence interval? is illustrated by our data for the time period with increased tsunami activity from ~4000 to 7000 Cal YBP. Tsunamis may potentially affect Sri Lanka at relatively high frequency during certain time intervals though the overall recurrence pattern of these events displays a highly irregular distribution. This extreme variability needs to be taken into consideration when such events are related to earthquake recurrence intervals. Prior to the December 26, 2004, tsunami, paleotsunami deposits in the Indian Ocean were largely unstudied and consequently, Holocene tsunami chronology was incompletely understood for the Indian Ocean. The results from this study represents the first geologic evidence of paleotsunami deposits in Sri Lanka generated by tsunamis during the past 7000 years. The identification of these paleotsunami deposits illustrates that the 2004 tsunami was not a ?one-time event,? but in fact has ancient counterparts.},
	keywords = {Coastal Lagoons, Holocene, Paleotsunamis, Sri Lanka, Tsunami Deposits, Tsunami Sediments, Tsunamis},
	url = {http://scholarlyrepository.miami.edu/oa_theses/171 },
	author = {Jackson, Kelly}
}
@article {270,
	title = {Pan-Arctic patterns in black carbon sources and fluvial discharges deduced from radiocarbon and PAH source apportionment markers in estuarine surface sediments},
	journal = {Global Biogeochemical Cycles},
	volume = {22},
	year = {2008},
	note = {id: 820; 307ZP Times Cited:3 Cited References Count:89Y},
	abstract = {A pan-arctic geospatial picture of black carbon (BC) characteristics was obtained from the seven largest arctic rivers by combining with molecular combustion markers (polycyclic aromatic hydrocarbons) and radiocarbon (C-14) analysis. The results suggested that the contribution from modern biomass burning to BC ranged from low in the Yukon (8\%) and Lena (5\%) Rivers to high in the Yenisey River (88\%). The Mackenzie River contributed almost half of the total arctic fluvial BC export of 202 kton a(-1) (kton = 10(9) g), with the five Russian-Arctic rivers contributing 10-36 kton a(-1) each. The C-14-based source estimate of fluvially exported BC to the Arctic Ocean, weighted by the riverine BC fluxes, amount to about 20\% from vegetation/biofuel burning and 80\% from C-14-extinct sources such as fossil fuel combustion and relict BC in uplifted source rocks. Combining these pan-arctic data with available estimates of BC export from other rivers gave a revised estimate of global riverine BC export flux of 26 x 10(3) kton a(-1). This is twice higher than a single previous estimate and confirms that river export of BC is a more important pathway of BC to the oceans than direct atmospheric deposition.},
	issn = {0886-6236},
	doi = {10.1029/2007gb002994},
	author = {Elmquist, M. and Semiletov, I. and Guo, L. D. and Gustafsson, O.}
}
@article {288,
	title = {Paleoecology and ecosystem restoration: case studies from Chesapeake Bay and the Florida Everglades},
	journal = {Frontiers in Ecology and the Environment},
	volume = {5},
	year = {2007},
	note = {id: 811; 227MD Times Cited:5 Cited References Count:51Y},
	pages = {491-498},
	abstract = {Climate extremes that cause droughts, floods, or large temperature fluctuations can complicate ecosystem restoration efforts focused on local and regional human disturbance. Restoration targets are often based primarily on monitoring data and modeling simulations, which provide information on species{\textquoteright} short-term response to disturbance and environmental variables. Consequently, the targets may be unsustainable under the spectrum of natural variability inherent in the system or under future climate change. Increasingly, ecologists and restoration planners recognize the value of the long temporal perspective provided by paleoecological data. Advances in paleoclimatology, including better climate proxy methods and temporal resolution, contribute to our understanding of ecosystem response to anthropogenic and climatic forcing at all time scales. We highlight paleoecological research in the Chesapeake Bay and the Florida Everglades and summarize the resulting contributions to restoration planning. Integration of paleoecological, historic, monitoring, and modeling efforts will lead to the development of sustainable, adaptive management strategies for ecosystem restoration.},
	issn = {1540-9295},
	doi = {10.1890/070015},
	author = {Willard, D. A. and Cronin, T. M.}
}
@article {663,
	title = {Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record},
	journal = {Palaeogeography Palaeoclimatology Palaeoecology},
	volume = {243},
	year = {2007},
	note = {134kzTimes Cited:48Cited References Count:62},
	month = {Jan 22},
	pages = {378-393},
	abstract = {Well-dated, high-resolution records of planktonic foraminifera and oxygen isotopes from two sediment cores, A7 and E017, in the middle Okinawa Trough reveal strong and rapid millennial-scale climate changes since similar to 18 to 17 thousand years before present (kyr B.P.). Sedimentation rate shows a sudden drop at similar to 11.2 cal. kyr B.P. due to a rapid rise of sea level after the Younger Dryas (YD) and consequently submergence of the large continental shelf on the East China Sea (ECS) and the retreat of the estuary providing sediment to the basin. During the last deglaciation, the relative abundance of warm and cold species of planktonic foraminifera fluctuates strongly, consistent with the timing of sea surface temperature (SST) variations determined from Mg/Ca measurements of planktonic foraminifera from one of the two cores. These fluctuations are coeval with climate variation recorded in the Greenland ice cores and North Atlantic sediments, namely Heinrich event 1 (H1), Bolling-Allerod (B/A) and YD events. At about 9.4 kyr B.P., a sudden change in the relative abundance of shallow to deep planktonic species probably indicates a sudden strengthening of the Kuroshio Current in the Okinawa Trough, which was synchronous with a rapid sea-level rise at 9.5-9.2 kyr B.P. in the ECS, Yellow Sea (YS) and South China Sea (SCS). The abundance of planktonic foraminiferal species, together with Mg/Ca based SST, exhibits millennial-scale oscillations during the Holocene, with 7 cold events (at about 1.7, 2.3-4.6, 6.2, 7.3, 8.2, 9.6, 10.6 cal. kyr BP) superimposed on a Holocene warming trend. This Holocene trend, together with centennial-scale SST variations superimposed on the last deglacial trend, suggests that both high and low latitude influences affected the climatology of the Okinawa Trough. (c) 2006 Elsevier B.V. All rights reserved.},
	issn = {0031-0182},
	doi = {10.1016/j.palaeo.2006.08.016},
	author = {Xiang, R. and Sun, Y. B. and Li, T. G. and Oppo, D. W. and Chen, M. H. and Zheng, F.}
}
@article {649,
	title = {Paleoenvironmental proxy records from Lake Hovsgol, Mongolia, and a synthesis of Holocene climate change in the Lake Baikal watershed},
	journal = {Quaternary Research},
	volume = {68},
	year = {2007},
	note = {187enTimes Cited:71Cited References Count:58},
	month = {Jul},
	pages = {2-17},
	abstract = {Here we discuss palcoenvironmental evolution in the Baikal region during the Holocene using new records of aquatic (diatom) and terrestrial vegetation changes from Hovsgol, Mongolia{\textquoteright}s largest and deepest lake. We reconcile previous contradictory Baikal timescales by constraining reservoir corrections of AMS dates on bulk sedimentary organic carbon. Synthesis of the Holocene records in the Baikal watershed reveals a northward progression in landscape/vegetation changes and an anti-phase behavior of diatom and biogenic silica proxies in neighboring rift lakes. In Lake Baikal, these proxies appear to be responsive to annual temperature increases after 6 ka, whereas in Lake Hovsgol they respond to higher precipitation/runoff from 11 to 7 ka. Unlike around Lake Baikal, warmer summers between 6 and 3.5 ka resulted in the decline, not expansion, of forest vegetation around Lake Hovsgol, apparently as a result of higher soil temperatures and lower moisture availability. The regional climatic proxy data are consistent with a series of 500-yr time slice Holocene GCM simulations for continental Eurasia. Our results allow reevaluation of the concepts of {\textquoteright}the Holocene optimum{\textquoteright} and a {\textquoteright}maximum of the Asian summer monsoon{\textquoteright}, as applied to palcoclimate records from continental Asia. (c) 2007 University of Washington. All rights reserved.},
	issn = {0033-5894},
	doi = {10.1016/j.yqres.2007.03.008},
	author = {Prokopenko, A. A. and Khursevich, G. K. and Bezrukova, E. V. and Kuzmin, M. I. and Boes, X. and Williams, D. F. and Fedenya, S. A. and Kulagina, N. V. and Letunova, P. P. and Abzaeva, A. A.}
}
@article {976,
	title = {Paleoenvironmental significance of the eastern mud snail, Ilyanassa obsolete (Say, 1822), from a microtidal coastal sequence of southern New England},
	journal = {The Nautilus},
	volume = {121},
	year = {2007},
	note = {id: 1082},
	pages = {37-39},
	url = {http://biodiversitylibrary.org/page/8496891},
	author = {Buynevich, I. V.}
}
@article {1359,
	title = {Paleoseismology of the Nephi segment of the Wasatch fault zone, Juab County, Utah--Preliminary results from two large exploratory trenches at Willow Creek},
	year = {2007},
	note = {id: 1116; Investigations Map 2966, 2 oversize plates},
	month = {2007},
	publisher = {U. S. Geological Survey},
	author = {Machette, M. N. and Crone, A. J. and Personius, S. F. and Dart, R. L. and Lidke, D. J. and Mahan, S. A. and Olig, S. S.}
}
@article {372,
	title = {Placing late Neanderthals in a climatic context RID A-5197-2008},
	journal = {Nature},
	volume = {449},
	year = {2007},
	note = {id: 1991; PT: J; UT: WOS:000249394500047},
	pages = {206-208},
	abstract = {Attempts to place Palaeolithic finds within a precise climatic framework are complicated by both uncertainty over the radiocarbon calibration beyond about 21,500 (14)C years BP(1) and the absence of a master calendar chronology for climate events from reference archives such as Greenland ice cores or speleothems(2). Here we present an alternative approach, in which (14)C dates of interest are mapped directly onto the palaeoclimate record of the Cariaco Basin by means of its (14)C series(3), circumventing calendar age model and correlation uncertainties, and placing dated events in the millennial-scale climate context of the last glacial period. This is applied to different sets of dates from levels with Mousterian artefacts, presumably produced by late Neanderthals, from Gorham{\textquoteright}s Cave in Gibraltar: first, generally accepted estimates of about 32,000 (14)C years BP for the upper-most Mousterian levels(4,5); second, a possible extended Middle Palaeolithic occupation until about 28,000 (14)C years BP(6); and third, more contentious evidence for persistence until about 24,000 (14)C years BP(6). This study shows that the three sets translate to different scenarios on the role of climate in Neanderthal extinction. The first two correspond to intervals of general climatic instability between stadials and interstadials that characterized most of the Middle Pleniglacial and are not coeval with Heinrich Events. In contrast, if accepted, the youngest date indicates that late Neanderthals may have persisted up to the onset of a major environmental shift, which included an expansion in global ice volume and an increased latitudinal temperature gradient. More generally, our radiocarbon climatostratigraphic approach can be applied to any {\textquoteright}snapshot{\textquoteright} date from discontinuous records in a variety of deposits and can become a powerful tool in evaluating the climatic signature of critical intervals in Late Pleistocene human evolution.},
	issn = {0028-0836},
	doi = {10.1038/nature06117},
	author = {Tzedakis, P. C. and Hughen, K. A. and Cacho, I. and Harvati, K.}
}
@article {1886,
	title = {Planktonic foraminifera, calcareous nannoplankton and ascidian variations during the last 25 kyr in the Southwestern Atlantic: A paleoproductivity signature?},
	journal = {Marine Micropaleontology},
	volume = {64},
	year = {2007},
	note = {id: 1061},
	month = {2007},
	pages = {67-79},
	author = {Toledo, Filipe A. L. and Chachao, Mario and Costa, Karen B. and Pivel, Maria A. G.}
}
@mastersthesis {1298,
	title = {Population dynamics, structure and per-recruit analysis of yellowedge grouper, Epinephelus flavolimbatus, from the northern Gulf of Mexico},
	volume = {Ph.D.},
	year = {2007},
	month = {2007},
	pages = {172},
	school = {University of Southern Mississippi},
	address = {Hattiesburg, MS},
	author = {Cook, M.}
}
@article {348,
	title = {Post-glacial changes in spatial patterns of vegetation across southern New England},
	journal = {Journal of Biogeography},
	volume = {34},
	year = {2007},
	note = {id: 1840; 157BN Times Cited:5 Cited References Count:70Y},
	pages = {900-913},
	abstract = {Aim We analysed lake-sediment pollen records from eight sites in southern New England to address: (1) regional variation in ecological responses to post-glacial climatic changes, (2) landscape-scale vegetational heterogeneity at different times in the past, and (3) environmental and ecological controls on spatial patterns of vegetation. Location The eight study sites are located in southern New England in the states of Massachusetts and Connecticut. The sites span a climatic and vegetational gradient from the lowland areas of eastern Massachusetts and Connecticut to the uplands of north-central and western Massachusetts. Tsuga canadensis and Fagus grandifolia are abundant in the upland area, while Quercus, Carya and Pinus species have higher abundances in the lowlands. Methods We collected sediment cores from three lakes in eastern and north-central Massachusetts (Berry East, Blood and Little Royalston Ponds). Pollen records from those sites were compared with previously published pollen data from five other sites. Multivariate data analysis (non-metric multi-dimensional scaling) was used to compare the pollen spectra of these sites through time. Results Our analyses revealed a sequence of vegetational responses to climate changes occurring across southern New England during the past 14,000 calibrated radiocarbon years before present (cal yr BP). Pollen assemblages at all sites were dominated by Picea and Pinus banksiana between 14,000 and 11,500 cal yr BP; by Pinus strobus from 11,500 to 10,500 cal yr BP; and by P. strobus and Tsuga between 10,500 and 9500 cal yr BP. At 9500-8000 cal yr BP, however, vegetation composition began to differentiate between lowland and upland sites. Lowland sites had higher percentages of Quercus pollen, whereas Tsuga abundance was higher at the upland sites. This spatial heterogeneity strengthened between 8000 and 5500 cal yr BP, when Fagus became abundant in the uplands and Quercus pollen percentages increased further in the lowland records. The differentiation of upland and lowland vegetation zones remained strong during the mid-Holocene Tsuga decline (5500-3500 cal yr BP), but the pattern weakened during the late-Holocene (3500-300 cal yr BP) and European-settlement intervals. Within-group similarity declined in response to the uneven late-Holocene expansion of Castanea, while between-group similarity increased due to homogenization of the regional vegetation by forest clearance and ongoing disturbances. Main conclusions The regional gradient of vegetation composition across southern New England was first established between 9500 and 8000 cal yr BP. The spatial heterogeneity of the vegetation may have arisen at that time in response to the development or strengthening of the regional climatic gradient. Alternatively, the differentiation of upland and lowland vegetation types may have occurred as the climate ameliorated and an increasing number of species arrived in the region, arranging themselves in progressively more complex vegetation patterns across relatively stationary environmental gradients. The emergence of a regional vegetational gradient in southern New England may be a manifestation of the increasing number of species and more finely divided resource gradient.},
	issn = {0305-0270},
	doi = {10.1111/j.1365-2699.2006.01650.x},
	author = {Oswald, W. W. and Faison, E. K. and Foster, D. R. and Doughty, E. D. and Hall, B. R. and Hansen, B. C. S.}
}
@article {638,
	title = {The power of radiocarbon in biogeochemical studies of the marine carbon cycle: insights from studies of dissolved and particulate organic carbon (DOC and POC)},
	journal = {Chem Rev},
	volume = {107},
	year = {2007},
	note = {McNichol, Ann PAluwihare, Lihini IengResearch Support, U.S. Gov{\textquoteright}t, Non-P.H.S.Review2007/02/16 09:00Chem Rev. 2007 Feb;107(2):443-66.},
	month = {Feb},
	pages = {443-66},
	issn = {0009-2665 (Linking)},
	doi = {10.1021/cr050374g},
	author = {McNichol, A. P. and Aluwihare, L. I.}
}
@article {1360,
	title = {Preliminary geologic map of the north-central part of the Alamosa 1/2 degree x 1 degree quadrangle, Alamosa and Conejos Counties, Colorado},
	year = {2007},
	note = {id: 629; 1 sheet, 1:50,000 scale},
	month = {2007},
	publisher = {U. S. Geological Survey Open-File Report},
	author = {Machette, M. N. and Thompson, R. A.}
}
@article {607,
	title = {Preservation of black carbon in the shelf sediments of the East China Sea},
	journal = {Chinese Science Bulletin},
	volume = {52},
	year = {2007},
	note = {232knTimes Cited:13Cited References Count:28},
	month = {Nov},
	pages = {3155-3161},
	abstract = {Concentrations and carbon isotopic (C-14, C-13) compositions of black carbon (BC) were measured for three sediment cores collected from the Changjiang River estuary and the shelf of the East China Sea. BC concentrations ranged from 0.02 to 0.14 mg/g (dry weight), and accounted for 5\% to 26\% of the sedimentary total organic carbon (TOC) pool. Among the three sediment cores collected at each site, sediment from the Changjiang River estuary had relatively high BC contents compared with the sediments from the East China Sea shelf, suggesting that the Changjiang River discharge played an important role in the delivery of BC to the coastal region. Radiocarbon measurements indicate that the ages of BC are in the range of 6910 to 12250 years old B. P. (before present), that is in general, 3700 to 9000 years older than the C-14 ages of TOC in the sediments. These variable radiocarbon ages suggest that the BC preserved in the sediments was derived from the products of both biomass fire and fossil fuel combustion, as well as from ancient rock weathering. Based on an isotopic mass balance model, we calculated that fossil fuel combustion contributed most (60\%. 80\%) of the BC preserved in these sediments and varied with depth and locations. The deposition and burial of this "slow-cycling" BC in the sediments of the East China Sea shelf represent a significant pool of carbon sink and could greatly influence carbon cycling in the region.},
	issn = {1001-6538},
	doi = {10.1007/s11434-007-0452-1},
	author = {Wang, X. C. and Li, A. C.}
}
@article {567,
	title = {Progress on a gas-accepting ion source for continuous-flow accelerator mass spectrometry},
	journal = {Nuclear Instruments \& Methods in Physics Research Section B-Beam Interactions with Materials and Atoms},
	volume = {259},
	year = {2007},
	note = {182wvTimes Cited:24Cited References Count:12},
	month = {Jun},
	pages = {83-87},
	abstract = {A gas-accepting microwave-plasma ion source is being developed for continuous-flow accelerator mass spectrometry (AMS). Characteristics of the ion source will be presented. Schemes for connecting a gas or liquid chromatograph to the ion source will also be discussed. (c) 2007 Ellsevier B.V. All rights reserved.},
	issn = {0168-583x},
	doi = {10.1016/j.nimb.2007.01.189},
	author = {Roberts, M. L. and Schneider, R. J. and von Reden, K. F. and Wills, J. S. C. and Han, B. X. and Hayes, J. M. and Rosenheim, B. E. and W. J. Jenkins}
}
@article {1349,
	title = {Paleotsunami deposits in coastal lagoons, Sri Lanka: Are tsunamis always sedimentologically important events?},
	year = {2006},
	note = {id: 664},
	month = {2006},
	publisher = {EOS Trans. AGU Fall Meeting Suppl. Abstracts},
	author = {Jackson, K. L. and Rankey, E. C. and Eberli, G. P. and Amelung, F. and Andres, M. S. and Peterson, L. C. and Swart, P. K. and Jayasena, H. A. H. and Kehelpannala, K. V. W.}
}
@article {1929,
	title = {Pedological properties of the eroding coastline along the Beaufort Sea, Alaska},
	journal = {Eos Trans. AGU Fall Meeting Supplement},
	volume = {87},
	year = {2006},
	note = {id: 1002},
	month = {2006},
	author = {Ping, C. L. and Dou, F. and Jorgenson, G. and Michaelson, J. and Lynn, L. A. and Shur, Y. and Kanevsky, M.}
}
@article {1946,
	title = {Postglacial climate reconstruction based on compound-specific D/H ratios of fatty acids from Blood Pond, New England},
	journal = {Geochemistry Geophysics Geosystems},
	volume = {7},
	year = {2006},
	note = {031uaTimes Cited:32
Cited References Count:43
},
	month = {Mar 28},
	abstract = {We determined hydrogen isotope ratios of individual fatty acids in a sediment core from Blood Pond, Massachusetts, USA, in order to reconstruct climate changes during the past 15 kyr. In addition to palmitic acid (C-16 n-acid), which has been shown to record lake water D/H ratios, our surface sediments and down core data indicate that behenic acid (C-22 n-acid), produced mainly by aquatic macrophytes, is also effective for capturing past environmental change. Calibration using surface sediments from two transects across eastern North America indicates that behenic acid records delta D variation of lake water. Down core variations in delta D values of behenic acid and pollen taxa are consistent with the known climate change history of New England. By evaluating the hypothesis that D/H fractionations of long chain even numbered fatty acids (C-24-C-32 n-acids) relative to lake water provide independent estimates of relative humidity during the growing season, we find that differences between lake-level records and isotopically inferred humidity estimates may provide useful insight into seasonal aspects of the hydrologic cycle. Combined analyses of D/H of short and long chain fatty acids from lake sediment cores thus allow reconstructions of both past temperature and growing season relative humidity. Comparison of delta D records from two lakes in New England provides critical information on regional climate variation and abrupt climate change, such as the 8.2 ka event.},
	keywords = {atmospheric processes : paleoclimatology, eastern north-america, fatty acids, geochemistry : organic and biogenic geochemistry, geochemistry : stable isotope geochemistry, Holocene, hydrogen isotope, hydrogen isotope ratios, lacustrine organic-matter, lake-sediments, Paleoclimate, record, Stable isotopes, united-states, vegetation history, younger-dryas},
	isbn = {1525-2027},
	doi = {10.1029/2005GC001076},
	author = {Hou, J. Z. and Huang, Y. S. and Wang, Y. and Shuman, B. and Oswald, W. W. and Faison, E. and Foster, D. R.}
}
@inbook {1418,
	title = {Pre-Columbian maize agriculture in Costa Rice: Pollen and other evidence from lake and swamp sediments},
	booktitle = {Histories of Maize: Multidisciplinary Approaches to the Prehistory, Biogeography, Domestication, and Evolution of Maize},
	year = {2006},
	note = {id: 1113},
	month = {2006},
	pages = {367-380},
	publisher = {Elsevier Press},
	organization = {Elsevier Press},
	address = {San Diego, CA},
	author = {Horn, S. P.},
	editor = {Staller, J.}
}
@article {710,
	title = {The Paleoproterozoic snowball Earth: a climate disaster triggered by the evolution of oxygenic photosynthesis},
	journal = {Proc Natl Acad Sci U S A},
	volume = {102},
	year = {2005},
	note = {Kopp, Robert EKirschvink, Joseph LHilburn, Isaac ANash, Cody ZengResearch Support, Non-U.S. Gov{\textquoteright}tResearch Support, U.S. Gov{\textquoteright}t, Non-P.H.S.2005/08/03 09:00Proc Natl Acad Sci U S A. 2005 Aug 9;102(32):11131-6. Epub 2005 Aug 1.},
	month = {Aug 09},
	pages = {11131-6},
	abstract = {Although biomarker, trace element, and isotopic evidence have been used to claim that oxygenic photosynthesis evolved by 2.8 giga-annum before present (Ga) and perhaps as early as 3.7 Ga, a skeptical examination raises considerable doubt about the presence of oxygen producers at these times. Geological features suggestive of oxygen, such as red beds, lateritic paleosols, and the return of sedimentary sulfate deposits after a approximately 900-million year hiatus, occur shortly before the approximately 2.3-2.2 Ga Makganyene "snowball Earth" (global glaciation). The massive deposition of Mn, which has a high redox potential, practically requires the presence of environmental oxygen after the snowball. New age constraints from the Transvaal Supergroup of South Africa suggest that all three glaciations in the Huronian Supergroup of Canada predate the Snowball event. A simple cyanobacterial growth model incorporating the range of C, Fe, and P fluxes expected during a partial glaciation in an anoxic world with high-Fe oceans indicates that oxygenic photosynthesis could have destroyed a methane greenhouse and triggered a snowball event on time-scales as short as 1 million years. As the geological evidence requiring oxygen does not appear during the Pongola glaciation at 2.9 Ga or during the Huronian glaciations, we argue that oxygenic cyanobacteria evolved and radiated shortly before the Makganyene snowball.},
	issn = {0027-8424 (Linking)},
	doi = {10.1073/pnas.0504878102},
	author = {Kopp, R. E. and Kirschvink, J. L. and Hilburn, I. A. and Nash, C. Z.}
}
@article {574,
	title = {Pre- and post-industrial environmental changes as revealed by the biogeochemical sedimentary record of Drammensfjord, Norway},
	journal = {Marine Geology},
	volume = {214},
	year = {2005},
	note = {890unTimes Cited:23Cited References Count:105},
	month = {Jan 30},
	pages = {177-200},
	abstract = {The biogeochemical sedimentary record of the anoxic Drammensfjord, Norway, was investigated on a decadal to centennial time scale over the last millennium, in order to reconstruct the pre-industrial fjord environment and ecosystem and human-induced environmental changes. The sediments were dated by a combination of C-14 and Pb-210 analysis and varve counting. Analysis of the bulk sedimentary parameters and of the biomarker distribution revealed that the sedimentary organic matter of the fjord is primarily of terrigetious origin, indicating that the fjord was oligotrophic or mesotrophic. The fjord{\textquoteright}s bottom water has been continuously euxinic since at least 1000 AD, but photic zone euxinia occurred only irregularly in the fjord. The organic matter flux and composition remained virtually invariable until the 18th century. After that time, the flux of material derived from coniferous trees started to increase, indicated by elevated concentrations of dehydroabietic acid and related compounds, but also by raising levels of C-24 n-alcohols and fatty acids. This marked the onset of sawmill activities in the hinterland. After the beginning of the industrial revolution, around 1850, the flux of organic waste from sawmills and paper mills increased substantially. It is suggested that slow bacterial degradation of this relatively nutrient-poor organic waste caused a gradual eutrophication trend, which is reflected in substantial increased bacterial and moderately increased other aquatic biomarker accumulation rates. After the industrial revolution, this trend accelerated and was possibly enhanced by a growing population of the area with accompanymg agricultural and domestic waste. This promoted primary productivity and changed the phytoplankton composition in the fjord.(C) 2004 Elsevier B.V. All rights reserved.},
	issn = {0025-3227},
	doi = {10.1016/j.margeo.2004.10.029},
	author = {Smittenberg, R. H. and Baas, M. and Green, M. J. and Hopmans, E. C. and Schouten, S. and Damste, J. S. S.}
}
@conference {1751,
	title = {Preliminary report on the archaeology and paleoecology of the Abalone Rocks Estuary, Santa Rosa Island, California},
	booktitle = {Proceedings of the Sixth California Islands Symposium},
	volume = {CHIS-05-01},
	year = {2005},
	note = {id: 468},
	month = {2005},
	pages = {55-63},
	publisher = {National Park Service Technical Publications, Institute for Wildlife Studies, Arcata, California},
	organization = {National Park Service Technical Publications, Institute for Wildlife Studies, Arcata, California},
	address = {Santa Barbara Museum of Natural History},
	author = {Rick, T. C. and Kennett, D. J. and Erlandson, J. M.},
	editor = {Carcelon, D.}
}
@conference {1752,
	title = {Preliminary research results indicate modern sedimentation ont he continental slope seaward of theWaipoao River, New Zealand},
	booktitle = {New Zealand Marine Science Society Annual Meeting},
	year = {2005},
	note = {id: 637},
	month = {2005},
	address = {Wellington, NZ},
	author = {Alexander, C. A. and Walsh, J. P. and Orpin, A. R. and Sumners, B. W. and Gerber, T. P. and Kuehl, S. A.}
}
@conference {1759,
	title = {Progress on a Gas Ion Source for Continuous-Flow Accelerator Mass Spectrometry},
	booktitle = {10th International Conference on Accelerator Mass Spectrometry},
	year = {2005},
	note = {id: 768},
	month = {2005},
	address = {Berkeley, California},
	author = {Roberts, M. L. and Schneider, R. J. and von Reden, K. F. and Han, B. X. and Rosenheim, B. E. and Hayes, J. M.},
	editor = {Knezovich, J. and et al.}
}
@article {912,
	title = {Provenance analysis of mud along the Min-zhe coast since 2 ka BP},
	journal = {Acta Sedimentologica Sinica},
	volume = {23},
	year = {2005},
	note = {id: 567},
	pages = {268-274},
	author = {Xiao, S. B. and Li, A. C. and Jiang, F.}
}
@article {1966,
	title = {The Puerto Bandera Moraines, Lago Argentino},
	journal = {Actas Del XVI Congreso Geologico Argentina, La Plata},
	year = {2005},
	note = {id: 573},
	month = {2005},
	pages = {1-6},
	author = {Strelin, Jorge and Denton, George}
}
@article {2030,
	title = {Pacific halibut (Hippoglossus stenolepis) chronology of bomb radiocarbon in otoliths from 1944-1981 and a validation of ageing methods},
	journal = {Journal of Fish Biology},
	volume = {64},
	year = {2004},
	note = {id: 1063},
	month = {2004},
	pages = {1060-1070},
	author = {Piner, K. P. and Wischniowski, S. G.}
}
@conference {1734,
	title = {Paleochannel incision and infill on the New Jersey shelf: timing, character and depositional environment},
	booktitle = {2005 SE GSA Meeting},
	year = {2004},
	note = {id: 1120},
	month = {2004},
	address = {Biloxi, MS},
	author = {Alexander, C. and Christensen, C. and Goff, J. and Austin J.A, Jr. and Venherm, C. and Nordfjord, S. and Gulick, S. and Sommerfield, C. and Fulthorpe, C. and Schock, S.}
}
@article {337,
	title = {Paleoclimate. A better radiocarbon clock},
	journal = {Science},
	volume = {303},
	year = {2004},
	note = {id: 974; Bard, Edouard Rostek, Frauke Menot-Combes, Guillemette New York, N.Y. Science. 2004 Jan 9;303(5655):178-9.},
	pages = {178-9},
	issn = {1095-9203 (Electronic) 0036-8075 (Linking)},
	doi = {10.1126/science.1091964},
	author = {Bard, E. and Rostek, F. and Menot-Combes, G.}
}
@conference {1730,
	title = {The paleo-environmental history of Long Island Sound as traced by organic carbon, biogenic silica and stable isotope/trace element studies in sediment cores},
	booktitle = {6th Biennual LIS Res. Conf. Proc.},
	year = {2004},
	note = {id: 1174},
	month = {2004},
	pages = {109-113},
	author = {Varekamp, J. C. and Thomas, E. and Lugolobi, F. and Buchholtz ten Brink, M. R.}
}
@conference {888,
	title = {Paleoproductivity indicators in Long Island Sound},
	booktitle = {American Geophyscial Union, Joint Assembly},
	volume = {85},
	year = {2004},
	note = {id: 1180},
	month = {2004},
	publisher = {American Geophysical Union (AGU)},
	organization = {American Geophysical Union (AGU)},
	abstract = {Oxygen depletion in bottom waters is considered to be the most pressing environmental problem affecting Long Island Sound (LIS). Summer anoxia occurs as a result of two factors: 1) Stratification of the water column due to warming of the shallow water preventing mixing and thus homogeneous distribution of oxygen. 2) Eutrophication resulting in increased primary productivity leading to a greater oxygen demand in the bottom waters as the larger amount of organic matter decays. The goal of this project is to create a paleoproductivity record for LIS and to attempt to link recent increases in productivity with anthropogenic nutrient sources, most notably wastewater treatment plant effluent. Two cores, WLIS-75 from the western narrows and B1GGC1 from near the mouth of the Housatonic River, have been analyzed for biogenic silica (BSi), total carbon, nitrogen, and sulfur. The BSi data was obtained through analyses of timed sequential extracts from an alkaline solution that reacted with the sediment at 85 C. Sediment densities were calculated from measured core water contents and assumed dry rock densities. A preliminary age model was developed using the onset of mercury pollution (about 1820 AD) as a reference point. At around 1800, the C, N, S and BSi concentrations all start to increase. In WLIS-75, BSi was higher throughout the core compared to core B1GGC1, suggesting an overall higher rate of productivity in the western section of LIS. In both cores the mass accumulation rates of BSi, C, N, and S increased exponentially over the last 300 years. A coarse layer was deposited around 1950-1960 in core WLIS-75, and is marked by abundant coarse debris of rocks and coal fragments. This layer may represent a flood deposit or stem from local (illegal?) dumping; its presence impacts the data for the last 30-40 years of the core. A strong correlation between total S and total C is observed, suggesting that Sulfide formation is limited by the amount of labile organic matter present. The data from the two cores show strong evidence for eutrophication over the last 200 years, with a strong increase in the N supply.},
	author = {Andersen, N. and Varekamp, J. C.}
}
@book {1346,
	title = {The Phanerozoic Carbon Cycle},
	year = {2004},
	note = {id: 1555},
	month = {2004},
	pages = {150},
	publisher = {Oxford University Press},
	organization = {Oxford University Press},
	address = {New York, NY},
	author = {Berner, Robert A.}
}
@article {627,
	title = {Photosynthetic microbial mats in the 3,416-Myr-old ocean},
	journal = {Nature},
	volume = {431},
	year = {2004},
	note = {Tice, Michael MLowe, Donald RengResearch Support, Non-U.S. Gov{\textquoteright}tResearch Support, U.S. Gov{\textquoteright}t, Non-P.H.S.England2004/10/01 05:00Nature. 2004 Sep 30;431(7008):549-52.},
	month = {Sep 30},
	pages = {549-52},
	abstract = {Recent re-evaluations of the geological record of the earliest life on Earth have led to the suggestion that some of the oldest putative microfossils and carbonaceous matter were formed through abiotic hydrothermal processes. Similarly, many early Archaean (more than 3,400-Myr-old) cherts have been reinterpreted as hydrothermal deposits rather than products of normal marine sedimentary processes. Here we present the results of a field, petrographic and geochemical study testing these hypotheses for the 3,416-Myr-old Buck Reef Chert, South Africa. From sedimentary structures and distributions of sand and mud, we infer that deposition occurred in normal open shallow to deep marine environments. The siderite enrichment that we observe in deep-water sediments is consistent with a stratified early ocean. We show that most carbonaceous matter was formed by photosynthetic mats within the euphotic zone and distributed as detrital matter by waves and currents to surrounding environments. We find no evidence that hydrothermal processes had any direct role in the deposition of either the carbonaceous matter or the enclosing sediments. Instead, we conclude that photosynthetic organisms had evolved and were living in a stratified ocean supersaturated in dissolved silica 3,416 Myr ago.},
	issn = {0028-0836 (Linking)},
	doi = {10.1038/nature02888},
	author = {Tice, M. M. and Lowe, D. R.}
}
@article {2031,
	title = {Phylogenetically specific spearation of rRNA from prokaryotes for isotopic analysis},
	journal = {Marine Chemistry},
	volume = {92},
	year = {2004},
	note = {id: 1805},
	month = {2004},
	pages = {295-306},
	author = {Pearson, Ann and Sessions, Alex L. and Edwards, Katrina J. and Hayes, John M.}
}
@article {2010,
	title = {Plans for Expanded 14C Analyses at the NOSAMS Facility--a status and progress report. 9th International Conference on Accelerator Mass Spectrometry, Nagoya, Japan, 9/2002},
	journal = {Nuclear Instruments and Methods in Physics Research},
	volume = {B 223-224},
	year = {2004},
	note = {id: 1810},
	month = {2004},
	pages = {50-54},
	author = {von Reden, K. and Donoghue, J. and Elder, K. and Gagnon, A. and Gerlach, D. and Griffin, V. S. and Healy, R. and Long, P. and McNichol, A. P. and Percy, D. and Roberts, M. L. and Schneider, R. J. and Xu, L. and Hayes, J.}
}
@article {2046,
	title = {Prehistoric marine mammal overkill in the northeastern Pacific: A review of new evidence},
	journal = {Journal of California and Great Basin Anthropology},
	volume = {24},
	year = {2004},
	note = {id: 469},
	month = {2004},
	pages = {69-80},
	author = {Jones, T. L. and Hildebrandt, W. R. and Kennett, D. J. and Porcasi, J. J.}
}
@article {1014,
	title = {Present status of radiocarbon calibration and comparison records based on Polynesian corals and Iberian Margin sediments},
	journal = {Radiocarbon},
	volume = {46},
	year = {2004},
	note = {956zfTimes Cited:30Cited References Count:33},
	pages = {1189-1202},
	abstract = {In this paper, we present updated information and results of the radiocarbon records based on Polynesian corals and on Iberian Margin planktonic foraminifera. The latter record was first published by Bard et al. (2004a,b), with the subsequent addition of some data by Shackleton et al. (2004). These data sets are compared with the IntCal98 record (Stuiver et al. 1998) and with data sets based on other archives, such as varves of Lake Suigetsu (Kitagawa and van der Plicht 1998, 2000), speleothems from the Bahamas (Beck et al. 2001), and Cariaco sediments (Hughen et al. 2004). Up to 26,000 cal BP, the Iberian Margin data agree within the errors of the other records. By contrast, in the interval between 33,000 and 41,000 cal BP, the Iberian Margin record runs between the Lake Suigetsu and Bahamian speleothem data sets, but it agrees with the few ImCal98 coral data and the Cariaco record.},
	issn = {0033-8222},
	url = {https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4176/3601},
	author = {Bard, E. and Menot-Combes, G. and Rostek, F.}
}
@article {634,
	title = {Palaeo-oceanography: Deepwater variability in the Holocene epoch},
	journal = {Nature},
	volume = {422},
	year = {2003},
	note = {Oppo, Delia WMcManus, Jerry FCullen, James LengEngland2003/03/21 04:00Nature. 2003 Mar 20;422(6929):277.},
	month = {Mar 20},
	pages = {277},
	issn = {0028-0836 (Linking)},
	doi = {10.1038/422277b},
	author = {Oppo, D. W. and McManus, J. F. and Cullen, J. L.}
}
@conference {1729,
	title = {The paleo environmental history of Long Island Sound, Abstract},
	booktitle = {Long Island Sound Lobster Research meeting},
	year = {2003},
	note = {id: 1178},
	month = {2003},
	address = {Groton, CT},
	author = {Varekamp, J. C. and Thomas, E. and Buchholtz ten Brink, M. F. and Altabet, M. and Cooper, S.}
}
@article {2072,
	title = {Paleoenvironmental inferences from core Anta95-1 (Granite Harobr, Sw Ross Sea-Antarctica)},
	journal = {Terra Antarctica reports},
	volume = {8},
	year = {2003},
	note = {id: 1001},
	month = {2003},
	pages = {133-138},
	author = {Orsini, G. and Giglio, F. and Langone, L. and Ravaioli, M.}
}
@article {2083,
	title = {Penetration of anthropogenic carbon into organic particles of the deep ocean},
	journal = {Geophysical Research Letters},
	volume = {30},
	year = {2003},
	note = {709dpTimes Cited:12
Cited References Count:29
},
	month = {Jul 23},
	pages = {1744},
	abstract = {[1] In the late 1980s, bomb C-14 was present in suspended particulate organic carbon (POC) from the North Central Pacific (NCP) and Sargasso Sea ( SS) throughout most of the water column, demonstrating that deep POC had exchanged with atmospheric CO2 in the past 30 years. Upon reoccupation of these sites in 1999 and 2000, respectively, we observed that the delta(13)C values of suspended POC were lower than those measured a decade earlier. This demonstrates that anthropogenic CO2 from fossil fuel and biomass burning has penetrated a major organic matter pool in the deep ocean. Delta(14)C measured in the suspended POC showed similar or higher values in the deep Sargasso Sea and decreased values in the deep NCP compared to those measured previously. We use a box model to show that the differences in the radiocarbon results are likely due to the presence of resuspended sediment that is laterally advected from the continental margin to the deep Sargasso Sea.},
	keywords = {bomb radiocarbon, C-14, CO2, delta-c-13, MATTER, NORTH PACIFIC-OCEAN, SARGASSO SEA, Sediment, variability, water},
	isbn = {0094-8276},
	doi = {10.1029/2003GL017423},
	author = {Druffel, E. R. M. and Bauer, J. E. and Griffin, S. and Hwang, J.}
}
@article {2076,
	title = {Persistence of Gulf Stream separation during the Last Glacial Period: Implications for current separation theories},
	journal = {Journal of Geophysical Research-Oceans},
	volume = {108},
	year = {2003},
	note = {690nvTimes Cited:14
Cited References Count:56
},
	month = {Jun 4},
	abstract = {[1] We present stable oxygen isotope ratio (delta(18)O) measurements on deep-dwelling planktonic foraminifera from the western margin of the North Atlantic in order to reconstruct the latitude at which the Gulf Stream separated from the western boundary of the Atlantic Ocean in the past. The modern separation latitude can be reconstructed within one degree from delta(18)O measured on the fossil shells of deep-dwelling planktonic foraminifera Globorotalia truncatulinoides from the Holocene sediments representing the past 10,000 years of mild climate conditions similar to today. The separation latitude is captured in a sharp delta(18)O gradient, which reflects the prominent hydrographic change across the boundary between the warm waters south and east of the Gulf Stream and the cold Slope Water to the north. The latitudinal delta(18)O profile from approximately the Last Glacial Maximum shows that the Gulf Stream separated from the coast near Cape Hatteras at almost the same latitude as it does today. We assess our finding in light of existing Gulf Stream separation theories and conclude that one of the theories, the wind-induced separation mechanism, is not consistent with our paleoceanographic reconstruction.},
	keywords = {cape-hatteras, deep-ocean, gulf stream separation, Last glacial maximum, marine sediment cores, north-atlantic, Ocean circulation, oxygen isotope composition, oxygen isotopic composition, past 21,000 years, planktonic foraminifera, planktonic-foraminifera, SARGASSO SEA, western boundary current, western boundary undercurrent, wind-driven},
	isbn = {0148-0227},
	doi = {10.1029/2001JC000861},
	author = {Matsumoto, K. and Lynch-Stieglitz, J.}
}
@article {999,
	title = {The persistence of memory: The fate of ancient sedimentary organic carbon in a modern sedimentary system},
	journal = {Geochimica Et Cosmochimica Acta},
	volume = {67},
	year = {2003},
	note = {634jvTimes Cited:143Cited References Count:63},
	month = {Jan},
	pages = {63-73},
	abstract = {The cycle of organic carbon burial and exhumation moderates atmospheric chemistry and global climate over geologic timescales. The burial of organic carbon occurs predominantly at sea in association with clay-sized particles derived from the erosion of uplifted continental rocks. It follows that the history of the fine-grained particles on land may bear on the nature of the organic carbon buried. In this study, the evolution of clay-associated organic matter was followed from bedrock source to the seabed in the Eel River sedimentary system of northern California using natural abundance C-13 and C-14 tracers. Approximately half of the fine-grained organic carbon delivered to the shelf is derived from ancient sedimentary organic carbon found in the uplifted Mesozoic-Tertiary Franciscan Complex of the watershed. The short residence time of friable soils on steep hill slopes, coupled with rapid sediment accumulation rates on the shelf-slope, act to preserve the ancient organic carbon. A comparable quantity of modem organic carbon is added to particles in the watershed and on the shelf and slope. The bimodal mixture of ancient and modem C in soils and sediments may be characteristic of many short, mountainous rivers. If the Eel River chemistry is typical of such rivers, more than 40 Tg of ancient organic C may be delivered to the world{\textquoteright}s oceans each year. A flux of that magnitude would have a significant influence on marine and global C-cycles. Copyright (C) 2003 Elsevier Science Ltd.},
	issn = {0016-7037},
	doi = {10.1016/S0016-7037(02)01043-8},
	author = {Blair, N. E. and Leithold, E. L. and Ford, S. T. and Peeler, K. A. and Holmes, J. C. and Perkey, D. W.}
}
@article {644,
	title = {A possible record of the Younger Dryas event in deep-sea sediments of the Southern Ocean (Pacific sector)},
	journal = {Palaeogeography Palaeoclimatology Palaeoecology},
	volume = {198},
	year = {2003},
	note = {723feTimes Cited:15Cited References Count:55},
	month = {Sep 15},
	pages = {265-278},
	abstract = {The oxygen isotope record combined with radiocarbon dating from two deep-sea cores collected along a transect between New Zealand and the Ross Sea are used to establish a reliable chronostratigraphy for the last 14 kyr. After an integrated geochemical and micropaleontological analysis in this timeframe we detected a cooling interval dated between 12.5 cal kyr BP and 11.4 cal kyr BP. The age control suggests that this event started 1.5 kyr after the onset of the Antarctic Cold Reversal previously observed in several Antarctic ice cores. We infer that the observed cool event corresponds to the Younger Dryas event defined in Northern Europe. This suggests that climate change recorded in this sector of the Southern Hemisphere still shows some synchronicity with Northern Hemisphere variations and that the decoupling of climate change between the two hemispheres likely occurred south of the Polar Front. (C) 2003 Elsevier B.V. All rights reserved.},
	issn = {0031-0182},
	doi = {10.1016/S0031-0182(03)00404-8},
	author = {Morigi, C. and Capotondi, L. and Giglio, F. and Langone, L. and Brilli, M. and Turi, B. and Ravaioli, M.}
}
@article {2074,
	title = {Post little ice age uplift at Juneau, Alaska reconstructed from dendrochronology and geomorphology},
	journal = {Quaternary Research},
	volume = {59},
	year = {2003},
	note = {id: 698},
	month = {2003},
	pages = {300-309},
	author = {Motyka, R. J.}
}
@article {2060,
	title = {On the preservation of laminated sediments along the western margin of North America},
	journal = {Paleoceanography},
	volume = {18},
	year = {2003},
	note = {id: 1128},
	month = {2003},
	author = {van Geen, A. and Zheng, Y. and Bernhard, J. M. and Cannariato, K. G. and Carriquiry, J. and Dean, W. E. and Eakins, B. W. and Ortiz, J. D. and Pike, J.}
}
@article {2091,
	title = {Paleoceanographic proxies in Long Island Sound, CT, USA},
	journal = {Geochimica Et Cosmochimica Acta},
	volume = {66},
	year = {2002},
	note = {Suppl. 1583rx
Times Cited:0
Cited References Count:0
},
	month = {Aug},
	pages = {A772-A772},
	isbn = {0016-7037},
	doi = {10.1016/S0016-7037(02)01013-X},
	url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2\&amp;SrcAuth=Alerting\&amp;SrcApp=Alerting\&amp;DestApp=WOS\&amp;DestLinkType=FullRecord;UT=WOS:000177423401511},
	author = {Thomas, E. and Lugolobi, F. and Varekamp, J. C.}
}
@conference {1738,
	title = {Paleoenvironmental history of Long Island Sound},
	booktitle = {Long Island Sound/NEERS Research Conference AGU Fall Meeting},
	year = {2002},
	note = {id: 1177},
	month = {2002},
	address = {Groton, CT San Francisco, CA},
	author = {Varekamp, J. C. and Thomas, E. and Lugolobi, F. and Buchholtz ten Brink, M. R.}
}
@conference {1744,
	title = {Plans for expanded 14C analyses at the NOSAMS facility - a status and progress report},
	booktitle = {International Conference on Accelerator Mass Spectrometry},
	year = {2002},
	note = {id: 1685},
	month = {2002},
	address = {Nagoya, Japan},
	author = {von Reden, K. F. and Donoghue, J. and Elder, K. and Gagnon, A. and Gerlach, D. and Griffin, V. and Healy, R. and Long, P. and McNichol, A. and Percy, D. and Roberts, M. L. and Schneider, R. J. and Xu, L. and Hayes, J. M.}
}
@article {2111,
	title = {Pleistocene chronology of continental margin sedimentation: New insights into traditional models, New Jersey},
	journal = {Marine Geology},
	volume = {186},
	year = {2002},
	note = {582qnTimes Cited:33
Cited References Count:89
},
	month = {Jul 10},
	pages = {389-411},
	abstract = {Commonly accepted models for the evolution of continental margins link sediment erosion, transport and deposition to eustasy. To test these models, we constructed an oxygen isotope record from 520 m of Pleistocene sediment recovered by the Ocean Drilling Program Leg 174A from the New Jersey continental slope. The delta(18)O record was calibrated to SPECMAP oxygen isotope time scale [Imbrie et al. (1984), in: Berger et al. (Eds.), Milankovitch and Climate, 269-305] with radiocarbon ages, nannoplankton biostratigraphy, magnetostratigraphy, and opal and calcium carbonate stratigraphy. Sixteen glacial/interglacial fluctuations of global ice volume have been recorded in the Pleistocene: oxygen isotope stages (OIS) 1 (partial), 2-4, 5 (partial) and 8 throughout 18. Contrary to predicted sedimentation models, a classification of mass-wasting deposits, based on variations in the styles of soft-sediment deformation and grain size, shows that: (1) mass-wasting is not restricted to glacial times but is present during both glacial and interglacial stages; (2) glacial stages are dominated by fine-grained sediments some of which were deposited by gravity flows; and (3) the transitions from glacial to interglacial stages are characterized by the deposition of coarse sands. The sedimentary record shows large-scale trends that do not fit the traditional models of higher glacial sedimentation rates since there is no consistent variation in sediment accumulation between glacial and interglacial stages. Instead there are longer-term sedimentation patterns. Uniform sedimentation rates of 62 cm/kyr characterize the early middle Pleistocene (OIS 12-18), followed by varying rates from low to very high for three consecutive time periods: OIS 11 to 9 (98-560 cm/kyr), OIS 8 (52-560 cm/kyr), and OIS 5 to 2 (37-353 cm/kyr). Each of these depositional units is contained within one seismic-stratigraphic sequence and bounded by sequence boundaries. Their deposition was influenced by the supply of sediment rather than eustasy. Sediment supply was modulated by: (1) the transition from the dominance of obliquity to that of eccentricity (OIS 18-12 to OIS 11-1); and (2) the proximity of the ice sheet (located similar to 150 km away from the paleoshoreline during the last glacial maximum). (C) 2002 Elsevier Science B.V. All rights reserved.},
	keywords = {baltimore canyon, coastal-plain, glacioeustasy, global sea-level, isotopes, late quaternary sedimentation, mass-wasting, new-york, north-atlantic, northwest atlantic, passive margin, Pleistocene, sedimentary processes, sequence stratigraphy, shelf, slope},
	isbn = {0025-3227},
	doi = {10.1016/S0025-3227(02)00198-6},
	author = {McHugh, C. M. G. and Olson, H. C.}
}
@article {2116,
	title = {Possible biological or physical explanations for decadal scale trends in North Pacific nutrient concentrations and oxygen utilization},
	journal = {Deep-Sea Research Part Ii-Topical Studies in Oceanography},
	volume = {49},
	year = {2002},
	note = {507ceTimes Cited:24
Cited References Count:71
},
	month = {2002},
	pages = {345-362},
	abstract = {We analyze North Pacific GEOSECS (1970s) and WOCE (1990s) observations to examine potential decadal trends of the marine biological carbon pump. Nitrate concentrations ([NO3]) and apparent oxygen utilization (AOU) decreased significantly in intermediate waters (by -0.6 and -2.9 mu mol kg(-1) respectively, at sigma (theta) = 27.4 kg m(-3), corresponding to approximate to 1050 m). In shallow waters (above roughly 750 m) [NO3-] and AOU increased, though the changes were not statistically significant. A sensitivity study with an ocean general circulation model indicates that reasonable perturbations of the biological carbon pump due to changes in export production or remineralization. efficiency are insufficient to account for the intermediate water tracer trends. However, changes in water ventilation rates could explain the intermediate water tracer trends and would be consistent with trends of water age derived from radiocarbon. Trends in AOU and [NO3-] provide relatively poor constraints on decadal scale trends in the marine biological carbon pump for two reasons. First, most of the expected changes due to decadal scale perturbations of the marine biota occur in shallow waters, where the available data are typically too sparse to account for the strong spatial and temporal variability. Second, alternative explanations for the observed tracer trends (e.g., changes in the water ventilation rates) cannot be firmly rejected. Our data analysis does not disprove the null-hypothesis of an unchanged biological carbon pump in the North Pacific. (C) 2001 Published by Elsevier Science Ltd.},
	keywords = {anthropogenic co2 invasion, atmospheric co2, carbon-cycle, el-nino, hydrographic data, organic-matter, redfield ratios, sargasso-sea, subtropical gyre, vertical fluxes},
	isbn = {0967-0645},
	url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2\&amp;SrcAuth=Alerting\&amp;SrcApp=Alerting\&amp;DestApp=WOS\&amp;DestLinkType=FullRecord;UT=WOS:000173008600015},
	author = {Keller, K. and Slater, R. D. and Bender, M. and Key, R. M.}
}
@article {2094,
	title = {Precambrian marine carbonate isotope database: Version 1.1},
	journal = {Geochemistry Geophysics Geosystems},
	volume = {3},
	year = {2002},
	note = {561enTimes Cited:103
Cited References Count:26
},
	month = {Jun 6},
	pages = {1-12},
	abstract = {[1] We present a compilation of strontium, carbon, and oxygen isotope compositions of roughly 10,000 marine carbonate rocks of Archean - Ordovician age (3800 Ma - 450 Ma). The Precambrian Marine Carbonate Isotope Database (PMCID) has been compiled from 152 published and 3 unpublished articles and books of the past 40 years. Also included are 30 categories of relevant "metadata{\textquoteright}{\textquoteright} that allow detailed comparisons and quality assessments of the isotope data to be made. The PMCID will be updated periodically as new data and better age constraints come to light. Here we outline the structure of the first published version of the database and its inherent merits and limitations.},
	keywords = {1010 geochemistry : chemical evolution, 1030 geochemistry : geochemical cycles (0330), 1040 geochemistry : isotopic composition/chemistry, 1050 geochemistry : marine geochemistry (4835,4850), calcite, carbonates, cycle, dolomite, evolution, Geochemistry, isotope stratigraphy, oceans, precambrian, SEAWATER, sediments, strontium, sulfur, time},
	isbn = {1525-2027},
	doi = {10.1029/2001GC000266},
	author = {Shields, G. and Veizer, J.}
}
@conference {1749,
	title = {Prehistoric cereamics in the upper James River region of the northeastern plains},
	booktitle = {Conference on the ceramics of the northeastern plains and adjacent areas},
	year = {2002},
	note = {id: 1436},
	month = {2002},
	address = {University of Winnipeg, Winnipeg, Manitoba},
	author = {Toom, Dennis L. and Schneider, Frederick E.}
}
@article {2095,
	title = {Prehistoric horticulture in the northeastern plains},
	journal = {Plains Anthropologist},
	volume = {47},
	year = {2002},
	note = {id: 1437},
	month = {2002},
	pages = {33-50},
	author = {Schneider, Frederick E.}
}
@conference {1733,
	title = {Paleoceanographic changes in the Southern Ocean, during the last deglaciation time, as recorded by planktic foraminifers and oxygen isotopes--Poster},
	booktitle = {ANTOSTRAT Symposium on "The geologic record of the Antarctic ice sheet from drilling, coring and seismic studies"--Poster},
	year = {2001},
	note = {id: 1424},
	month = {2001},
	pages = {137},
	address = {Erice, Italy},
	author = {Morigi, C. and Capotondi, L. and Giglio, F. and Langone, L. and Turi, B. and Brilli, M. and Ravaioli, M.}
}
@conference {1735,
	title = {Paleoclimate through the ages from the Cariaco Basin, Abstract},
	booktitle = {American Geophysical Union},
	year = {2001},
	note = {id: 1467},
	month = {2001},
	address = {Boston, MA},
	author = {Hughen, K. A. and Peterson, L. C. and Black, D. and Haug, G. and Poore, R.}
}
@article {908,
	title = {Paleoproterozoic Huronian basin: product of a Wilson cycle punctuarted by glaciations and a meteorite impact},
	journal = {Sedimentary Geology},
	volume = {141-142},
	year = {2001},
	note = {id: 1606},
	pages = {233-254},
	abstract = {The Huronian Supergroup (\~{}2.4{\textendash}2.2 Ga) comprises up to 12 km of mainly sedimentary supracrustal rocks. The oldest Huronian unit, the Livingstone Creek Formation, is chemically and mineralogically immature. Significant chemical weathering and deposition of U-rich quartz pebble conglomerates followed deposition of the Livingstone Creek Formation and extrusion of the overlying, rift-related lavas of the Thessalon Formation. Much of the succeeding Huronian comprises climatically(?)-controlled tripartite cycles, each of which begins with glaciogenic diamictites, followed by mudstones and cross bedded arenaceous units. Huronian deposition is interpreted as the result of a partial Wilson cycle, involving rifting and development of a southward-facing passive margin. The \~{}2.4 Ga Murray and Creighton granites have been considered by others to be co-eval with an early orogenic episode (Blezardian). Expected unconformities are, however, lacking and these granites, together with co-eval volcanic rocks and abundant soft sediment deformation structures are considered to be due to anorogenic processes during Huronian basin subsidence. The main deformation of the Huronian is probably related to the Penokean orogeny (\~{}1.89{\textendash}1.8 Ga). Geochemical investigations have contributed to paleoclimatic and provenance studies and have helped to define basin-wide metasomatic events. A large impact at \~{}1.85 Ga likely played an important role in formation of the Sudbury Igneous Complex (SIC) and deposition of fallback breccias of the Onaping Formation (basal Whitewater Group in the Sudbury basin). Overlying sedimentary rocks of the Whitewater Group are considered to be a fortuitously-preserved portion of a widespread flysch apron that spread across the southern margin of the Superior Province as a foreland basin fill, in response to the closure phase of the Wilson cycle during the Penokean orogeny. Geochronological data suggest that these events occurred during the Penokean orogeny.},
	keywords = {Geochemistry, Glaciation, Impact, Paleoproterozoic, Wilson cycle},
	doi = {10.1016/S0037-0738(01)00076-8},
	author = {Young, G. M. and Long, D. G. F. and Fedo, C. M. and Nesbitt, H. W.}
}
@article {339,
	title = {Persistent solar influence on North Atlantic climate during the Holocene},
	journal = {Science},
	volume = {294},
	year = {2001},
	note = {id: 1397; Bond, G Kromer, B Beer, J Muscheler, R Evans, M N Showers, W Hoffmann, S Lotti-Bond, R Hajdas, I Bonani, G New York, N.Y. Science. 2001 Dec 7;294(5549):2130-6. Epub 2001 Nov 15.},
	pages = {2130-6},
	abstract = {Surface winds and surface ocean hydrography in the subpolar North Atlantic appear to have been influenced by variations in solar output through the entire Holocene. The evidence comes from a close correlation between inferred changes in production rates of the cosmogenic nuclides carbon-14 and beryllium-10 and centennial to millennial time scale changes in proxies of drift ice measured in deep-sea sediment cores. A solar forcing mechanism therefore may underlie at least the Holocene segment of the North Atlantic{\textquoteright}s "1500-year" cycle. The surface hydrographic changes may have affected production of North Atlantic Deep Water, potentially providing an additional mechanism for amplifying the solar signals and transmitting them globally.},
	issn = {0036-8075 (Print) 0036-8075 (Linking)},
	doi = {10.1126/science.1065680},
	author = {Bond, G. and Kromer, B. and Beer, J. and Muscheler, R. and Evans, M. N. and Showers, W. and Hoffmann, S. and Lotti-Bond, R. and Hajdas, I. and Bonani, G.}
}
@article {408,
	title = {Pleistocene glacial history of the southern Ahklun Mountains, southwestern Alaska: Soil-development, morphometric, and radiocarbon constraints},
	journal = {Quaternary Science Reviews},
	volume = {20},
	year = {2001},
	note = {id: 1204},
	pages = {353-370},
	abstract = {Four new AMS ages, glacial mapping, and measurements of soil development, loess thickness, and moraine morphology constrain the age and extent of at least three Quaternary advances by outlet lobes of an ice cap over the Ahklun Mountains of southwestern Alaska. The relative-age data are from 107 sites correlated to 25 ice-marginal positions in the Kanektok, Goodnews, Togiak, and Kulukak River valleys and along the southeastern flank of the range. Radiocarbon ages provide minimum ages for six {\textemdash} and a maximum age for one {\textemdash} of the former ice margins. Soil and morphometric parameters subdivide the ice limits into three relative-age groups. One to three pre-Wisconsin advances, probably middle Pleistocene in age, are represented by drift with relatively thick B horizons (60{\textpm}5 cm, with Bt horizons), thick loess caps (80{\textpm}12 cm), and broad moraines (135{\textpm}134 m) with gentle side slopes (7{\textpm}5{\textdegree}). An extensive early Wisconsin (sensu lato, s.l.) advance, >39.9 ka, and three associated stillstands or readvances are characterized by intermediate soil and morphometric parameters (Bw and weak Bt horizons with thicknesses of 40{\textpm}11 cm; loess thicknesses of 69{\textpm}46 cm; crest widths of 38{\textpm}13 m; and slope angles of 14{\textpm}4{\textdegree}). The maximum late Wisconsin advance, >16.9 ka, and two readvances or stillstands are associated with thin (20{\textpm}5 cm), weakly to moderately developed Bw horizons, thin loess caps (28{\textpm}8 cm), narrow crest widths (28{\textpm}9 m), and steep slope angles (18{\textpm}3{\textdegree}). The data confirm that early-Wisconsin glaciers in southeast Beringia were much more extensive than late Wisconsin glaciers, which were apparently limited by availability of moisture.},
	doi = {10.1016/S0277-3791(00)00111-6},
	author = {Manley, W. F. and Kaufman, D. S. and Briner, J. P.}
}
@article {2131,
	title = {Pollen record of the last 500 years from the Doninos coastal lagoon (NW Iberian Peninsula): Changes in the pollinic catchment size versus paleoecological interpretation},
	journal = {Journal of Coastal Research},
	volume = {17},
	year = {2001},
	note = {479bdTimes Cited:6
Cited References Count:46
},
	month = {Sum},
	pages = {705-713},
	abstract = {Pollen, diatom, charcoal and sedimentological analyses of a 4.20-m long core collected in the margin of the Doninos coastal lagoon, northwest Iberian Peninsula, provide information about the environmental evolution of this lagoon during the last 530 yr BP. During this time period, local environmental changes, such as changes in the sand-barrier permeability, alluvial sedimentation and/or anthropogenic activity, played a major role in the evolution of this coastal system. This scenario allows us to test the degree the pollinic signal recorded in the sediments of coastal lagoons is reshaped by the influence of local processes.Diatom and sedimentological data as well as historical archives indicate the development of a lacustrine system at the bottom of the sequence. Therefore, the coring site might be included in the lagoon itself. Pollen data seems to reflect the regional vegetation as a consequence of the large pollinic catchment area. Local Castanea cultivation and anthropogenic deforestation are also recorded.
At the top of the sequence, diatom facies suggest increased marine influence at this time as a consequence of the more common events of breaching of a retrograding barrier. This, plus natural silting up by alluvial sedimentation and man-induced drying up of the lagoonal margins, lead to a progressive decrease in the water body extension. The coring point is now outside of the lagoon, implying a reduction in the pollinic catchment area that gave rise to a gradual increase in the local pollinic rainfall of periphytic vegetation.
From the pollen diagram of this coastal deposit signatures of regional vegetation are swamped by local pollen input. The fluctuations in the percentages of the different pollen taxa are related to the complex interaction between basin size, human activities and breaching of the barrier. Caution must therefore be taken with direct paleoclimatic inferences from pollinic studies in coastal lagoons as an alternative where other continental deposits are lacking.
},
	keywords = {charcoal, coastal lagoon, diatoms, human impact, Late Holocene, late-holocene, nw iberian peninsula, pollen, representation, source area, vegetation, vegetation history},
	isbn = {0749-0208},
	author = {Santos, L. and Bao, R. and Goni, M. F. S.}
}
@conference {1746,
	title = {Possible record of the yunger dryas event in sediments of the southern ocean (Pacific sector)--abstract},
	booktitle = {AUG},
	year = {2001},
	note = {id: 1427},
	month = {2001},
	address = {Nice, France},
	author = {Morigi, C. and Capotondi, L. and Langone, L. and Giglio, F. and Ravaioli, M.}
}
@conference {1747,
	title = {Possible record of the yunger dryas event in sediments of the Southern Ocean (Pacific Sector)--Poster},
	booktitle = {AUG},
	year = {2001},
	note = {id: 1423},
	month = {2001},
	address = {Nice},
	author = {Morigi, C. and Capotondi, L. and Langone, L. and Giglio, F. and Ravaioli, M.}
}
@article {2127,
	title = {Post-glacial eruptive history of the western volcanic zone, Iceland},
	journal = {EOS Trans. Amer. Geophys. Union},
	volume = {82 suppl.},
	year = {2001},
	note = {id: 355},
	month = {2001},
	author = {Sinton, John M. and Gronvold, Karl}
}
@article {2151,
	title = {Pre-Columbian fish farming in the Amazon},
	journal = {Expedition},
	volume = {43},
	year = {2001},
	note = {id: 1481},
	month = {2001},
	pages = {7-8},
	author = {Erickson, Clark L.}
}
@article {2150,
	title = {Pre-Columbian roads of the Amazon},
	journal = {Expedition},
	volume = {43},
	year = {2001},
	note = {id: 1482},
	month = {2001},
	pages = {21-30},
	author = {Erickson, Clark L.}
}
@article {407,
	title = {Pre-late Wisconsin glacial history, coastal Ahklun Mountains, southwestern Alaska-New amino acid, thermoluminescence, and 40Ar/30Ar results},
	journal = {Quaternary Science Reviews},
	volume = {20},
	year = {2001},
	note = {id: 1203},
	pages = {337-352},
	abstract = {New stratigraphic and geochronologic data from the Togiak Bay area of southwestern Alaska indicate that glaciers advanced from the southern Ahklun Mountains at least three and as many as six times prior to the late Wisconsin. The oldest glaciations are represented by glacial{\textendash}marine sediment in coastal exposures on Hagemeister Island. The extent of amino acid (isoleucine) epimerization in fossil molluscs indicates that at least one, and possibly four, older middle Pleistocene glacial intervals are represented, with age estimates spanning \~{}500{\textendash}280 ka and averaging \~{}400{\textpm}100 ka. The youngest glacial-marine drift on Hagemeister Island may correlate with the eruption of the Togiak tuya. A new 40Ar/39Ar age on basalt that overlies pillow lava indicates that the volcano erupted through glacial ice at least 300 m thick 263{\textpm}22 ka. The youngest drift in the region overlies the Old Crow tephra (140{\textpm}10 ka) and a 70{\textpm}10 ka basaltic lava flow dated by thermoluminescence analysis of underlying baked sediment. The drift delimits flat piedmont lobes that spread out onto the continental shelf and terminated >100 km from their source areas during the early Wisconsin (sensu lato). The glacial-geologic evidence suggests that major expansions of glaciers were out of phase with global ice volume.},
	doi = {10.1016/S0277-3791(00)00112-8},
	author = {Kaufman, D. S. and Manley, W. F. and Forman, S. L. and Layer, P.}
}
@article {2152,
	title = {Proceedings of a Workshop on Alkenone-Based Paleoceanographic Indicators (Introduction to special issue of journal)},
	journal = {Geochem. Geophys. Geosyst.},
	volume = {2},
	year = {2001},
	note = {id: 1739},
	month = {2001},
	author = {Eglinton, T. I. and Conte, M. H. and Eglinton, G. and Hayes, John M.}
}
@conference {1732,
	title = {Paleoceanographic changes in the Southern Ocean (Pacific sector) during the last 14 Ka.--Poster},
	booktitle = {Third International SO-JGOFS Symposium},
	year = {2000},
	note = {id: 1422},
	month = {2000},
	address = {Brest},
	author = {Morigi, C. and Capotondi, L. and Ravaioli, M. and Giglio, F. and Turi, B. and Brilli, M. and Langone, L.}
}
@mastersthesis {1308,
	title = {Paleoclimate signals in a speleothem from Belize, Senior Thesis},
	volume = {Dissertation/Thesis},
	year = {2000},
	month = {2000},
	pages = {54},
	school = {Princeton University},
	address = {Princeton, NJ},
	author = {Gaines, Sarah M.}
}
@conference {1740,
	title = {Palynlogical evidence for human occupation between 2550 and 1270 years BP recorded in two mountain wetlands (near Sagalassos, western Taurus range, SW Turkey)},
	booktitle = {International Symposium on High Mountain Lakes and Streams},
	year = {2000},
	note = {id: 1370},
	month = {2000},
	author = {Vermoere, M. and Waelkens, M. and E, Smets}
}
@article {1483,
	title = {Particle mixing and sediment accumulation rates of Peconic Estuary sediments: A sediment accretion study in support of the Peconic Estuary Program (Report)},
	volume = {Proj $\#$0014400598181563},
	year = {2000},
	note = {id: 1344},
	month = {2000},
	author = {Cochran, J. K. and Hirschberg, D. J. and Amiel, D.}
}
@article {2181,
	title = {Postglacial and Late Holocene earthquakes on the Toe Jam strand of the Seattle fault, Bainbridge Island Washington},
	journal = {Geological Society of America Abstracts with Programs},
	volume = {32},
	year = {2000},
	note = {id: 258},
	month = {2000},
	pages = {A-58},
	author = {Nelson, A. R. and Johnson, S. Y. and Pezzopane, S. K. and Wells, R. E. and Kelsey, H. M. and Sherrod, B. L. and Koehler, R. D. and Bradley, L. A. and Bucknam, R. C. and LaPrade, W. T. and Cox, J. W. and Narwold, C. F.}
}
@article {2171,
	title = {Postglacial climate and vegetation history, north-central Kola Peninsula, Russia: pollen and diatom records from Lake Yarnyshnoe-3},
	journal = {Boreas},
	volume = {29},
	year = {2000},
	note = {378dxTimes Cited:28
Cited References Count:82
},
	month = {Dec},
	pages = {261-271},
	abstract = {A sediment core from Lake Yamyshnoe-3 (69 degrees 04{\textquoteright}N; 36 degrees 04{\textquoteright}E), an emerged coastal lake from the tundra of the north-central Kola Peninsula, has been analyzed for fossil pollen and diatoms. The pollen record shows the Younger Dryas event marked by increasing Artemisia coupled with decreases in Poaceae, Cyperaceae and Salix at c. 10 700 to 10 000 BP. This core provides the first well-defined palynological record of the Younger Dryas event on the Kola Peninsula. Stomates from Pinus were recovered from the core interval between 8000 and 6000 BP. The stomates, coupled with elevated values of pine pollen, indicate that Pinus sylvestris grew near the arctic coastline of the central Kola Peninsula in the middle Holocene. However, the small number of stomates suggests that pines were not plentiful. The diatom record from the core reflects basin isolation from the sea and indicates additional limnological changes during the climate transition between c. 5000 and 4000 BP. The broadly similar climate and vegetation history on the north-central Kola Peninsula and in Fennoscandia demonstrates the propagation of late glacial and Holocene climate events from the North Atlantic region into the Eurasian Arctic.},
	keywords = {atlantic, finnish lapland, Holocene, late pleistocene, norway, sea, sediments, varanger-peninsula, western part, younger-dryas},
	isbn = {0300-9483},
	doi = {10.1111/j.1502-3885.2000.tb01209.x},
	author = {Snyder, J. A. and MacDonald, G. M. and Forman, S. L. and Tarasov, G. A. and Mode, W. N.}
}
@article {2198,
	title = {Procesos y formas periglaciares en la montana mediterranea},
	journal = {Instituto de Estudios Turolenses, Teruel},
	year = {2000},
	note = {id: 371},
	month = {2000},
	pages = {63-79},
	author = {Garcia-Ruiz, J. M.}
}
@article {2169,
	title = {Processes and rates of Holocene sedimentation in Santa Monica Bay, CA},
	journal = {EOS},
	volume = {Transactions of the American Geophysical Union},
	year = {2000},
	note = {id: 139},
	month = {2000},
	pages = {OS251},
	author = {Sommerfield, C. K. and Lee, H. J.}
}
@conference {1731,
	title = {Paleoceanographic changes in the Southern Ocean (Pacific Sector) during the last 14 ka.- -Abstract},
	booktitle = {Third International SO-JGOFS Symposium},
	year = {1999},
	note = {id: 1426},
	month = {1999},
	address = {Brest},
	author = {Morigo, C. and Capotondi, L. and Ravaioli, M. and Giglio, F. and Turi, B. and Brilli, M. and Langone, L.}
}
@article {871,
	title = {Paleoclimate of Southwestern China for the past 50,000 yr inferred from lake sediment records},
	journal = {Quaternary Research},
	volume = {52},
	year = {1999},
	note = {255ltTimes Cited:85Cited References Count:58},
	month = {Nov},
	pages = {369-380},
	abstract = {Long sediment cores (12.5 and 13.5 m) from two lakes in Yunnan Province were used to infer the paleoclimate of southwest China over the past 50,000 yr, During the Holocene and marine isotope stage (MIS 3), bio-induced carbonate precipitation and organic matter (OM) production was high, suggesting warm temperatures and high primary productivity. In contrast, sediment inorganic carbon (IC) and organic carbon (OC) concentrations were low in last glacial deposits from 38,000 to 12,000 cal yr B.P., indicating cool temperatures and low productivity. The 50,000-yr record has alternating peaks of carbonate and coarse-grain (>38 mu m) quartz that reflect warm, moist interglacial or interstadial conditions alternating with cold, dry glacial or stadial conditions, respectively. Spectral analysis of the carbonate and quartz signals reveals power concentrated at periods of 7200 and 8900 cal yr, respectively, that may reflect a nonlinear climate response to precessional forcing at a time of reduced eccentricity modulation (McIntyre and Molfino, 1996). Oxygen isotope values of calcite from Yunnan lake cores indicate the summer monsoon was weak during the last glaciation from 50,000 to 12,000 cal yr B.P. The summer monsoon intensified between 12,000 and 8000 cal yr B.P., but weakened gradually in response to insolation forcing during the mid-to-late Holocene. Our results support the Overpeck ef al. (1996) model that posits a weak summer monsoon during the last glaciation that responded nonlinearly to insolation forcing when its intensity was affected by Eurasian snow cover and ice-sheet extent. The summer monsoon intensified and responded linearly to seasonal insolation forcing in the Holocene when ice volume diminished. (C) 1999 University of Washington.},
	issn = {0033-5894},
	doi = {10.1006/qres.1999.2072},
	author = {Hodell, D. A. and Brenner, M. and Kanfoush, S. L. and Curtis, J. H. and Stoner, J. S. and Song, X. L. and Yuan, W. and Whitmore, T. J.}
}
@article {2226,
	title = {Paleoenvironmental changes during the last 17,000 years in western Patagonia},
	journal = {Bamberger Geographische Schriften},
	volume = {19},
	year = {1999},
	note = {id: 1382},
	month = {1999},
	pages = {175-193},
	author = {Markgraf, V. and Bianchi, M. M.}
}
@conference {1739,
	title = {Paleoenvironments of Capitol Reef National Park reconstructed from fossil packrate middens},
	booktitle = {4th biennial Conference on Research on the Colorado Plateau},
	year = {1999},
	note = {id: 1369},
	month = {1999},
	address = {USGS Colorado Plateau Field Station, Flagstaff, AZ},
	author = {Cole, K. L. and Murray, L. K.},
	editor = {Riper, van}
}
@article {1019,
	title = {Peat accumulation and succession following permafrost thaw in the boreal peatlands of Manitoba, Canada},
	journal = {Ecoscience},
	volume = {6},
	year = {1999},
	note = {299bzTimes Cited:22Cited References Count:55},
	pages = {592-602},
	abstract = {Permafrost thaw in boreal peatlands may be widespread as climate warms over the next century. Thaw will lead to dramatic changes in vegetation, and an understanding of the patterns and rates of succession following thaw is important for assessing future ecosystem changes, such as carbon accumulation and the likelihood of permafrost formation during climate warming. This paper describes the autogenic processes of peat accumulation and succession from recently thawed, aquatic Sphagnum communities to lawn and hummock Sphagnum communities favorable for permafrost formation. Peat cores were used to construct bulk density profiles in aquatic, lawn, and hummock habitats. Soil bulk density increased over time from the edges to the centers of thawed bogs. These changes corresponded to changes from aquatic to lawn/hummock communities. Macrofossils from Pb-210-dated peat cores were used to document historical changes to hummock communities. Succession to hummock communities capable of forming permafrost was less than 80 years. Picea mariana seedlings colonized emergent Sphagnum hummocks in collapse scars, which may lead to permafrost formation. However, permafrost formation in today{\textquoteright}s discontinuous permafrost landscape is unlikely during future climate warming because of limited tree establishment and shifting mean annual temperature isotherms.},
	issn = {1195-6860},
	doi = {10.1080/11956860.1999.11682561},
	author = {Camill, P.}
}
@conference {1742,
	title = {Planktic foraminifera and oxygen isotope as proxies for paleoceanographic reconstruction in the Southern Ocean during the last deglacial time--Abstract},
	booktitle = {Convegno Glaciologia e Paleoclima},
	year = {1999},
	note = {id: 1425},
	month = {1999},
	pages = {70-71},
	address = {Padova},
	author = {Morigi, C. and Capotondi, L. and Ravaioli, M. and Giglio, F. and Turi, B. and Brilli, M. and Frignani, M. and Langone, L.}
}
@article {816,
	title = {Preliminary evidence of early deglaciation in southern Chile},
	journal = {Palaeogeography Palaeoclimatology Palaeoecology},
	volume = {146},
	year = {1999},
	note = {160wbTimes Cited:13Cited References Count:25},
	month = {Feb 15},
	pages = {295-301},
	abstract = {The end of the last ice age in the channels of southern Chile is recorded by resumed sedimentation in formerly ice-filled basins. To identify the timing of initial ice retreat in Southern Chile, we examined ice-proximal sediments from a proglacial lake along the eastern margin of the Magallanes ice sheet, an environment thought to be sensitive to initial melting (Porter, S.C,, Clapperton, C.M., Sugden, D.E., 1992. Chronology and dynamics of deglaciation along and near the Strait of Magellan, southernmost South America. Sver. Geol. Unders. 81, 233-239). AMS-radiocarbon dates of the supra-till deposits in two cores indicate that sedimentation resumed 18 radiocarbon kyr. Deposition in kettle-holes and bogs on the adjacent land surfaces began at the same time or earlier (17-25 radiocarbon kyr) (Clapperton, C.M., Sugden, D.E., Kaufman, D.S., McCulloch, R.D., 1995. The last glaciation in central Magellan Strait, Southernmost Chile. Quat. Res. 44, 133-148). Our preliminary interpretation is that these events indicate initial deglaciation in the region and the formation of a large proglacial lake, followed several thousand years later by the invasion of salt water as sea level rose. Deglaciation in southers Chile occurred too early to be forced by the resumption of North Atlantic Deep Water formation, sea level rise, or northern hemisphere summer insolation, and we suggest instead that southern insolation played a role. The time of initial deglaciation in southern Chile (21-27 calendar kyr) occurred as southern hemisphere annual insolation increased from a minimum at 29 calendar kyr (6 W/m(2) less than today at 80 degrees S). (C) 1999 Elsevier Science B.V. All rights reserved.},
	issn = {0031-0182},
	doi = {10.1016/S0031-0182(98)00146-1},
	author = {Anderson, D. M. and Archer, R. B.}
}
@conference {1750,
	title = {A preliminary model-data comparison for bomb-14C in the Pacific thermocline},
	booktitle = {WOCE-AIMS Tracer Workshop},
	year = {1999},
	note = {id: 313},
	month = {1999},
	address = {Bremen, Germany},
	author = {Rogers, K. and Peacock, S. and Latif, M. and Key, R. M.}
}
@article {2271,
	title = {P10 Final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {98},
	year = {1998},
	note = {id: 1463},
	month = {1998},
	pages = {10},
	author = {Key, R. M.}
}
@article {2270,
	title = {P10 Final report for large volume 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {98},
	year = {1998},
	note = {id: 1462},
	month = {1998},
	pages = {12},
	author = {Key, R. M.}
}
@article {2269,
	title = {P17N Final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {98},
	year = {1998},
	note = {id: 1460},
	month = {1998},
	pages = {16},
	author = {Key, R. M.}
}
@article {973,
	title = {P18 Final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Technical Report},
	volume = {98},
	year = {1998},
	note = {id: 1464},
	pages = {10},
	author = {Key, R. M. and D, Quay P.}
}
@article {2268,
	title = {P19C Final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {98},
	year = {1998},
	note = {id: 1461},
	month = {1998},
	pages = {14},
	author = {Key, R. M.}
}
@article {2263,
	title = {Paleoclimatic Assessment of Cretaceous Lacustrine and Marine-Evaporitic Sequences from the Potiguar Basin Based on the Hydrogen Isotopic Compositions of Saturated Hydrocarbons},
	journal = {Revista Latino Americana de Geoquimica Ogranica},
	volume = {4},
	year = {1998},
	note = {id: 1776},
	month = {1998},
	pages = {5-24},
	author = {Neto, Eugenio Vaz dos Santos and Hayes, John M. and Takaki, Tikae}
}
@article {800,
	title = {Physical controls on dissolved inorganic radiocarbon variability in the California Current},
	journal = {Deep-Sea Research Part Ii-Topical Studies in Oceanography},
	volume = {45},
	year = {1998},
	note = {102ttTimes Cited:21Cited References Count:43},
	pages = {617-642},
	abstract = {We present depth profiles of Delta(14)C and delta(13)C Of dissolved inorganic carbon (DIC) at Station M in the Eastern North Pacific. Several seasonal profiles are presented for the time period between 1991 and 1996. Comparison with GEOSECS data clearly shows changes in ocean radiocarbon profiles since 1973. The Delta(14)C Of DIC shows the most variability at depths of 450, 85, and 25 m, and the lowest variability at depths of 1600 and 2500 m. The largest variability in DIC Delta(14)C occurs at 450 m, a depth marked by large fluctuations in the radiocarbon signatures of the source waters. The likely controls of DIC Delta(14)C variability are physical changes in the circulation of the California Current System. A simple two-box model is used to show the importance of wind driven mixing at the surface. We discuss the likely effects of mesoscale eddies and ENSO on the DIC Delta(14)C values at this site. We also show that remineralization of organic carbon (dissolved or particulate) is not responsible for the variability in the Delta(14)C Of DIC observed at Station M. (C) 1998 Elsevier Science Ltd. All rights reserved.},
	issn = {0967-0645},
	doi = {10.1016/S0967-0645(97)00096-9},
	author = {Masiello, C. A. and Druffel, E. R. M. and Bauer, J. E.}
}
@article {2259,
	title = {Preparation for continuous flow accelerator mass spectrometry Radiocarbon},
	journal = {Radiocarbon},
	volume = {1},
	year = {1998},
	note = {id: 1623},
	month = {1998},
	author = {Schneider, R. J. and Hayes, J. M. and von Reden, K. F. and McNichol, A. P. and Eglinton, T. and Wills, J. S. C.}
}
@conference {2419,
	title = {The Proceedings of the 30th Symposium of North-Eastern Accelerator Personnel},
	booktitle = {30th Symposium of North-Eastern Accelerator Personnel},
	year = {1998},
	month = {1998},
	publisher = {World Scientific Publishing Co.},
	organization = {World Scientific Publishing Co.},
	author = {von Reden, K. F.  and Schneider, R. J.}
}
@article {2247,
	title = {Proceedings of the 30th Symposium of Northeastern Accelerator Personnel - Woods Hole, 1996},
	journal = {World Scientific},
	year = {1998},
	note = {id: 1674},
	month = {1998},
	author = {von Reden, K. F. and Schneider, R. J.}
}
@conference {1753,
	title = {Proceedings of the 8th International Conference on Heavy Ion Accelerator Technology},
	booktitle = {American Institute of Physics, Conference Proceeding Series},
	year = {1998},
	note = {id: 1624; submitted},
	month = {1998},
	address = {Argonne National Lab},
	author = {Schneider, R. J. and von Reden, K. F. and Hayes, J. M. and Wills, J. S. C.}
}
@article {778,
	title = {Pyroclastic stratigraphy of the Soufriere Hills volcano, Montserrat - Implications for the present eruption},
	journal = {Geophysical Research Letters},
	volume = {25},
	year = {1998},
	note = {119mkTimes Cited:24Cited References Count:9},
	month = {Sep 15},
	pages = {3393-3396},
	abstract = {The stratigraphy of the Soufriere Hills volcano is dominated by dense-andesite block and ash flow deposits. Forty-one radiocarbon ages permit a reconstruction of the eruptive history over the past 31,000 years. A single stratigraphic member yielding radiocarbon ages of 22,000 to 20,000 years B.P. is composed of block and ash flow deposits with semi-vesiculated clasts concentrated in the upper third of each deposit. The present eruption is also producing block and ash flow deposits with both dense and semi-vesiculated clasts. It marks a return to a more explosive driven type of activity as occurred 22,000 to 20,000 years ago. Deposits of this member have a broad sheet-like form and volumes in excess of any produced so far by the present eruption.},
	issn = {0094-8276},
	doi = {10.1029/98gl00643},
	author = {Roobol, M. J. and Smith, A. L.}
}
@article {969,
	title = {P13N final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Technical Report},
	volume = {97},
	year = {1997},
	note = {id: 1254},
	pages = {11},
	author = {Key, R. M. and Quay, P. D.}
}
@article {2301,
	title = {P14C final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Report},
	volume = {97},
	year = {1997},
	note = {id: 1255},
	month = {1997},
	pages = {10},
	author = {Key, R. M.}
}
@article {2300,
	title = {P16A17A final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Report},
	volume = {97},
	year = {1997},
	note = {id: 1253},
	month = {1997},
	pages = {10},
	author = {Key, R. M.}
}
@mastersthesis {1335,
	title = {Paleoceanographic Variability on a Millennial Scale: A High Resolution Record of the Latest Deglaciation from the Blake Outer Ridge, Western North Atlantic, Thesis},
	volume = {MS},
	year = {1997},
	month = {1997},
	author = {Schlegel, Mary Ann}
}
@article {877,
	title = {Paleoclimatic implications of Holocene lake-level fluctuations, Owasco Lake, New York: Comment},
	journal = {Geology},
	volume = {25},
	year = {1997},
	note = {Wu319Times Cited:0Cited References Count:7},
	month = {04/1997},
	pages = {383-383},
	issn = {0091-7613},
	author = {Balco, G. and Belknap, D. F. and Kelley, J. T.}
}
@article {2302,
	title = {Paleoclimatic implications of silicieous microfossil succession in late Quaternary sediments in Lake Baikal, Siberia},
	journal = {Journal of Paleolimnology},
	volume = {18},
	year = {1997},
	note = {id: 1354},
	month = {1997},
	pages = {187-204},
	author = {Julius, M. L. and Stoermer, E. F. and Colman, S. M. and Moore, T. C.}
}
@article {2279,
	title = {Paleocology research in Great Lakes (U.S.A.)National Parks},
	journal = {Abstracts for American Society of Limnology and Oceanography},
	year = {1997},
	note = {id: 1300},
	month = {1997},
	author = {Winkler, M. G.}
}
@article {1509,
	title = {Paleoecological research at Isle Royale, Apostle Islands, and Voyageurs National Parks. Report},
	year = {1997},
	note = {id: 1321},
	month = {1997},
	pages = {85},
	author = {Winkler, M. G. and Sanford, P. R.}
}
@article {1478,
	title = {Paleogeography and sedimentary evolution of Nauset Marsh estuary, Cape Cod, MA. Final Report to the National Park Service},
	year = {1997},
	note = {id: 1311},
	month = {1997},
	author = {Allen, J. R. and Boothroyd, J.}
}
@article {2278,
	title = {Paleolimnology research at Isle Royale, Apostle Island, and Voyageurs National Parks},
	journal = {USGS Biological Resources Division, Global Change Research Program},
	volume = {Summary Report},
	year = {1997},
	note = {id: 1299},
	month = {1997},
	author = {Winkler, M. G. and Sanford, P. R.}
}
@conference {1748,
	title = {Possible role of climate in the collapse of the Akkadian Empire: evidence from Gulf of Oman marine sediments},
	booktitle = {AGU Fall Meeting},
	year = {1997},
	note = {id: 1235},
	month = {1997},
	address = {San Francisco, California},
	author = {Cullen, H.}
}
@article {2284,
	title = {Postglacial relative sea level history from sediment and diatom rcords of emerged coastal lakes, north-central Kola Peninsula, Russia},
	journal = {Boreas},
	volume = {26},
	year = {1997},
	note = {id: 379},
	month = {1997},
	pages = {329-346},
	author = {Snyder, J. A. and Forman, S. L. and Mode, W. N. and Tarasov, G. A.}
}
@article {2298,
	title = {Precise temporal correlation of Holocene mollusc shells using sclerochronology},
	journal = {Palaeogeography, Paleoclimatology, Paleoecology},
	year = {1997},
	note = {id: 1293},
	month = {1997},
	author = {Marchitto, T. M. and Jones, G. A. and Goodfriend, G. A. and Weidman, C. R. and Jirikowic, J.}
}
@article {1484,
	title = {Preliminary paleoecology study of Salt Pond and Nauset Lagoon, Cape Cod National Seashore (Report)},
	volume = {Final Report},
	year = {1997},
	note = {id: 131},
	month = {1997},
	pages = {40},
	institution = {National Park Service, North Atlantic Region},
	author = {Cole, K. and Winkler, M. G. and Sanford, P. R.}
}
@article {883,
	title = {Preliminary results of the first drilling on Lake Baikal, Buguldeika site, southeastern Siberia},
	journal = {Quaternary International},
	volume = {37},
	year = {1997},
	note = {id: 188},
	pages = {3-17},
	abstract = {The Baikal Drilling Project (BDP) is a multinational effort to investigate the paleoclimatic history and tectonic evolution of the Baikal sedimentary basin during the Late Neogene. In March 1993 the Baikal drilling system was successfuly deployed from a barge frozen into position over a topographic high, termed the Buguldeika saddle, in the southern basin of Lake Baikal. The BDP-93 scientific team, made up of Russian, American and Japanese scientists, successfully recovered the first long (>100 m) hydraulic piston cores from two holes in 354 m of water. High quality cores of 98 m (Hole 1) and 102 m (Hole 2), representing sedimentation over the last 500,000 years, were collected in 78 mm diameter plastic liners with an average recovery of 72\% and 90\%, respectively. Magnetic susceptibility logging reveals an excellent hole-to-hole correlation. In this report the scientific team describes the preliminary analytical results from BDP-93 hole 1 cores. Radiocarbon dating by accelerator mass spectrometry provides an accurate chronology for the upper portion of Hole 1. Detailed lithologic characteristics, rock magnetic properties and inorganic element distributions show a significant change to the depositional environment occuring at 50 m subbottom depth, approximately 250,000 BP. This change may be due to uplift and rotation of the horst block in the Buguldeika saddle. The sedimentary section above 50 m is pelitic with varve-like laminae, whereas the section below 50 m contains a high proportion of sand and gravel horizons often organized into turbidite sequences. Accordingly, high resolution seismic records reveal a change in sonic velocity at this depth. It is inferred that sedimentation prior to 250 ka BP was from the west via the Buguldeika river system. After 250 ka BP the Buguldeika saddle reflects an increase in hemipelagic sediments admixed with fine-grained material from the Selenga River drainage basin, east of Lake Baikal. Variations in the spore-pollen assemblage, diatoms, biogenic silica content, rock magnetic properties, clay mineralogy and organic carbon in the upper 50 m of BDP-93-1 reveal a detailed record of climate change over approximately the last 250,000 years. These variables alternate in a pattern characteristic of glacial/interglacial climatic fluctuations. The present age model suggests that the climate signal recorded in Lake Baikal sediments is similar to Late Quaternary signals recorded in Chinese loess sections and in marine sediments.},
	doi = {10.1016/1040-6182(96)00027-4},
	author = {Baikal Members, B. D. Drilling Project}
}
@article {2305,
	title = {Preliminary results of the first scientific drilling on Lake Baikal, Buguldeika site, southeastern Siberia},
	journal = {Quaternary International},
	volume = {37},
	year = {1997},
	note = {Vq100Times Cited:44
Cited References Count:29
},
	month = {1997},
	pages = {3-17},
	abstract = {The Baikal Drilling Project (BDP) is a multinational effort to investigate the paleoclimatic history and tectonic evolution of the Baikal sedimentary basin during the Late Neogene. In March 1993 the Baikal drilling system was successfuly deployed from a barge frozen into position over a topographic high, termed the Buguldeika saddle, in the southern basin of Lake Baikal. The BDP-93 scientific team, made up of Russian, American and Japanese scientists, successfully recovered the first long (>100 m) hydraulic piston cores from two holes in 354 m of water. High quality cores of 98 m (Hole 1) and 102 m (Hole 2), representing sedimentation over the last 500,000 years, were collected in 78 mm diameter plastic liners with an average recovery of 72\% and 90\%, respectively. Magnetic susceptibility logging reveals an excellent hole-to-hole correlation. In this report the scientific team describes the preliminary analytical results from BDP-93 hole 1 cores. Radiocarbon dating by accelerator mass spectrometry provides an accurate chronology for the upper portion of Hole 1. Detailed lithologic characteristics, rock magnetic properties and inorganic element distributions show a significant change to the depositional environment occuring at 50 m subbottom depth, approximately 250,000 BP. This change may be due to uplift and rotation of the horst block in the Buguldeika saddle. The sedimentary section above 50 m is pelitic with varve-like laminae, whereas the section below 50 m contains a high proportion of sand and gravel horizons often organized into turbidite sequences. Accordingly, high resolution seismic records reveal a change in sonic velocity at this depth. It is inferred that sedimentation prior to 250 ka BP was from the west via the Buguldeika river system. After 250 ka BP the Buguldeika saddle reflects an increase in hemipelagic sediments admired with fine-grained material from the Selenga River drainage basin, east of Lake Baikal. Variations in the spore-pollen assemblage, diatoms, biogenic silica content, rock magnetic properties, clay mineralogy and organic carbon in the upper 50 m of BDP-93-1 reveal a detailed record of climate change over approximately the last 250,000 years. These variables alternate in a pattern characteristic of glacial/interglacial climatic fluctuations. The present age model suggests that the climate signal recorded in Lake Baikal sediments is similar to Late Quaternary signals recorded in Chinese loess sections and in marine sediments. Copyright (C) 1996 INQUA/Elsevier Science Ltd},
	keywords = {asia, tectonics},
	isbn = {1040-6182},
	author = {Colman, S. and Grachev, M. and Hearn, P. and Horie, S. and Kawai, T. and Kuzmin, M. and Logachov, N. and Fialkov, V. and Gorigljad, A. and Tomilov, B. and Khakhaev, B. and Kochikov, S. and Lykov, V. and Pevzner, L. and Bucharov, A. and Karabanov, E. and Logachev, N. and Mats, V. and Bardardinov, A. and Baranova, E. and Khlystov, O. and Khrachenko, V. and Shimaraeva, M. and Stolbova, E. and Komakova, E. and Efremova, S. and Gvozdkov, A. and Kravchinski, V. and Peck, J. and Fileva, T. and Kashik, S. and Khramtsova, T. and Kalashnikova, I. and Rasskazova, T. and Tatarnikova, V. and Yuretich, R. and Mazilov, V. and Takemura, K. and Bobrov, V. and Gunicheva, T. and Haraguchi, H. and Ito, S. and Kocho, T. and Kuzmin, M. and Markova, M. and Pampura, V. and Proidakova, O. and Ishiwatari, R. and Sawatari, H. and Takeuchi, A. and Toyoda, K. and Vorobieva, S. and Ikeda, A. and Marui, A. and Nakamura, T. and Ogura, K. and Ohta, T. and King, J. and Sakai, H. and Yokoyama, T. and Hayashida, A. and Bezrukova, E. and Fowell, S. and Fuji, N. and Letunova, P. and Misharina, V. and Miyoshi, N. and Chernyaeva, G. and Ignatova, I. and Likhoshvai, E. and Stoermer, E. and Granina, L. and Levina, O. and Dolgikh, P. and Lazo, F. and Lutskaia, N. and Orem, W. and Wada, E. and Williams, D. and Yamada, K. and Yamada, S. and Callander, E. and Golobokoval, L. and Shanks, P. and Dorofeeva, R. and Duchkov, A.}
}
@article {939,
	title = {Productivity-induced sulphur enrichment of hydrocarbon-rich sediments from the Kimmeridge Clay Formation},
	journal = {Chem Geol},
	volume = {134},
	year = {1997},
	note = {Lallier-Verges, EHayes, J MBoussafir, MZaback, D ATribovillard, N PConnan, JBertrand, PengResearch Support, Non-U.S. Gov{\textquoteright}tNetherlands1997/01/01 00:00Chem Geol. 1997;134:277-88.},
	pages = {277-88},
	abstract = {This work aims to highlight the relationship between primary productivity, sulphate reduction and organic carbon preservation in cyclic marine sediments from the Kimmeridge Clay Formation. A concomitant increase of the total sulphur content with the preserved organic content (TOC), shows the progressive supply of both metabolisable organic matter and resistant organic matter is linked to primary productivity. However, variations in sulphate reduction efficiency, based on elemental abundance and isotopic composition of sulphur, reveal that the proportion of metabolisable vs. resistant organic matter has varied along the cycles. This is interpreted in terms of the variation in organic delivery. Organic sulphur content is found to be proportional to the organic matter content, whereas concentrations of pyritic sulphur are constant at very high (> 10\% TOC) values. This result is explained by a limitation of available iron for pyritisation at times of very high organic flux. Under such conditions, HS- in excess could be responsible for the early formation of organo-sulphur compounds and thus for the preservation of highly aliphatic (i.e. lipid-rich) organic matter.},
	issn = {0009-2541 (Linking)},
	doi = {10.1016/S0009-2541(96)00093-9},
	author = {Lallier-Verges, E. and Hayes, J. M. and Boussafir, M. and Zaback, D. A. and Tribovillard, N. P. and Connan, J. and Bertrand, P.}
}
@article {1501,
	title = {P16 S17S TUNES-2 final report for AMS 14C samples (Report)},
	volume = {96},
	year = {1996},
	note = {id: 1250},
	month = {1996},
	pages = {10},
	author = {Key, R. M.}
}
@article {2327,
	title = {P16A17A Final report for large volume samples and D14C measurements},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1454},
	month = {1996},
	pages = {13},
	author = {Key, R. M.}
}
@article {970,
	title = {P16C TUNES-3 final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Technical Report},
	volume = {96},
	year = {1996},
	note = {id: 1453},
	pages = {9},
	author = {Key, R. M. and Quay, P.}
}
@article {1502,
	title = {P16C TUNES-3 final report for AMS 14C samples (Report)},
	volume = {96},
	year = {1996},
	note = {id: 1251},
	month = {1996},
	pages = {9},
	author = {Key, R. M. and Quay, P.}
}
@article {2326,
	title = {P16S17S TUNES-2 final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1452},
	month = {1996},
	pages = {10},
	author = {Key, R. M.}
}
@article {2325,
	title = {P16S17S TUNES-2 final report for large volume samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1451},
	month = {1996},
	pages = {14},
	author = {Key, R. M.}
}
@article {2324,
	title = {P17C TUNES-1 final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Report},
	volume = {96},
	year = {1996},
	note = {id: 1249},
	month = {1996},
	pages = {9},
	author = {Key, R. M.}
}
@article {2323,
	title = {P17C TUNES-1 final report for large volume samples},
	journal = {Ocean Tracer Laboratory Tech. Rept},
	volume = {96},
	year = {1996},
	note = {id: 1449},
	month = {1996},
	pages = {18},
	author = {Key, R. M.}
}
@article {2322,
	title = {P17E19S Final report for large volume samples and D14C measurements},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1455},
	month = {1996},
	pages = {15},
	author = {Key, R. M.}
}
@article {2321,
	title = {P17N Final report for large volume samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1459},
	month = {1996},
	pages = {21},
	author = {Key, R. M.}
}
@article {2320,
	title = {P19C Final report for large volume samples and D14C measurements},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1458},
	month = {1996},
	pages = {20},
	author = {Key, R. M.}
}
@article {2319,
	title = {P6 final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rep.},
	volume = {96},
	year = {1996},
	note = {id: 1456},
	month = {1996},
	pages = {9},
	author = {Key, R. M.}
}
@article {1505,
	title = {The paleoecology and pH history of Ike Walton Lake and comparison with the recent history of Zee Lake. Report},
	volume = {Final Report},
	year = {1996},
	note = {id: 1325},
	month = {1996},
	pages = {55},
	institution = {Lac du Flambeau Water Resources Program Contract $\#$1243},
	author = {Winkler, M. G.}
}
@conference {1737,
	title = {Paleoecology of the Everglades National Park Paper},
	booktitle = {Florida Bay Science Conference},
	year = {1996},
	note = {id: 1298},
	month = {1996},
	pages = {121-124},
	address = {Florida},
	author = {Winkler, M. G. and Sanford, P. R. and Kaplan, S. W.}
}
@article {1507,
	title = {Paleoecology of the Everglades National Park. Report},
	volume = {Technical Report 97-006},
	year = {1996},
	note = {id: 1324},
	month = {1996},
	pages = {212},
	institution = {National Park Service, Everglades National Park},
	address = {Homestead, Florida},
	author = {Winkler, M. G. and Sanford, P. R. and Kaplan, S.}
}
@article {2318,
	title = {PC17 TUNES-1 final report for AMS 14C samples},
	journal = {Ocean Tracer Laboratory Tech. Rept.},
	volume = {96},
	year = {1996},
	note = {id: 1450},
	month = {1996},
	pages = {9},
	author = {Key, R. M.}
}
@book {1376,
	title = {Petroleum Geochemistry and Geology},
	year = {1996},
	note = {id: 1558},
	month = {1996},
	pages = {741},
	publisher = {W. H. Freeman \& Company},
	organization = {W. H. Freeman \& Company},
	address = {New York, NY},
	author = {Hunt, John M.}
}
@article {2340,
	title = {Post-bomb radiocarbon records of surface corals from the tropical Atlantic Ocean},
	journal = {Radiocarbon},
	volume = {38},
	year = {1996},
	note = {Xd080Times Cited:25
Cited References Count:20
},
	month = {1996},
	pages = {563-572},
	abstract = {Delta(14)C records are reported for post-bomb corals from three sites in the tropical Atlantic Ocean. In corals from 18 degrees S in the Brazil Current, Delta(14)C values increased from ca.-58 parts per thousand in the early 1950s to +138 parts per thousand by 1974, then decreased to 110 parts per thousand by 1982 Shorter records from 8 degrees S off Brazil and from the Cape Verde Islands (17 degrees N) showed initially higher Delta(14)C values before 1965 than those at 18 degrees S, but showed lower rates of increase of Delta(14)C during the early 1960s. There is general agreement between the coral results and Delta(14)C of dissolved inorganic carbon (DIC) measured in seawater previously for locations in the tropical Atlantic Ocean. Delta(14)C values at our tropical ocean sites increased at a slower rate than those observed previously in the temperate North Atlantic (Florida and Bermuda), owing to the latter{\textquoteright}s proximity to the bomb C-14 input source in the northern hemisphere. Model results show that from 1960-1980 the Cape Verde coral and selected DIC Delta(14)C values from the North Equatorial Current agree with that calculated for the North Atlantic based on an isopycnal mixing model with a constant water mass renewal rate between surface and subsurface waters. This is in contrast to Delta(14)C values in Bermuda corals that showed higher post-bomb values than those predicted using a constant water mass renewal rate, hence indicating that ventilation in the western north Atlantic Ocean had decreased by a factor of 3 during the 1960s and 1970s (Druffel 1989).},
	keywords = {atmosphere, banded corals, bermuda, C-14, pacific, rings, ventilation},
	isbn = {0033-8222},
	author = {Druffel, E. R. M.}
}
@article {2313,
	title = {A preliminary palynological study of the late Pleistocene to Holocene history of the Lake Winnebago basin, Wisconsin},
	journal = {Abstracts with Programs - Geological Society of America},
	volume = {28},
	year = {1996},
	note = {id: 76},
	month = {1996},
	pages = {59},
	author = {Ormseth, B. L. and Smith, G. L.}
}
@article {2338,
	title = {Preparative capillary gas chromatographic isolation of individual compounds from complex matrices for radiocarbon dating},
	journal = {Analytical Chemistry},
	volume = {68},
	year = {1996},
	note = {id: 1340},
	month = {1996},
	pages = {904-912},
	author = {Eglinton, T. I. and Aluwihare, L. I. and Bauer, J. E. and Druffel, E. R. M. and McNichol, A. P.}
}
@conference {1755,
	title = {Progress of the NOSAMS Facility WOCE 14C data analysis},
	booktitle = {7th International Conference on Accelerator Mass Spectrometry},
	volume = {38},
	year = {1996},
	note = {id: 948; 1},
	month = {1996},
	pages = {123},
	publisher = {Radiocarbon},
	organization = {Radiocarbon},
	address = {Tucson, AZ},
	author = {von Reden, K. F. and McNichol, A. P. and Schneider, R. J.}
}
@article {2307,
	title = {Progress of the NOSAMS Facility WOCE 14C Data Analysis},
	journal = {Radiocarbon},
	volume = {38},
	year = {1996},
	note = {id: 1672},
	month = {1996},
	pages = {123},
	author = {von Reden, K. F. and McNichol, A. P. and Schneider, R. J.}
}
@conference {1756,
	title = {Progress of the NOSAMS Facility WOCE 14C Data Analysis},
	booktitle = {Workshop on Applications of AMS to Global Climate Change},
	volume = {38},
	year = {1996},
	note = {id: 1768; 1},
	month = {1996},
	pages = {123},
	publisher = {Radiocarbon},
	organization = {Radiocarbon},
	address = {La Jolla},
	author = {von Reden, K. F. and McNichol, A. P. and Schneider, R. J.}
}
@conference {1757,
	title = {Progress of the NOSAMS Facility WOCE 14C Data Analysis, Workshop on Applications of AMS to Global Climate Change},
	booktitle = {Workshop on Applications of AMS to Global Climate Change},
	volume = {38},
	year = {1996},
	note = {id: 954; 8},
	month = {1996},
	pages = {123},
	publisher = {Radiocarbon},
	organization = {Radiocarbon},
	address = {La Jolla},
	author = {von Reden, K. F. and McNichol, A. P. and Schneider, R. J.}
}
@conference {1758,
	title = {Progress of the NOSAMS facility WOCE (super 14) C data analysis},
	volume = {38},
	year = {1996},
	note = {id: 2242; Source type: conferencepapers\&proceedings; Object type: Article; Object type: Conference Paper; Copyright: GeoRef, Copyright 2007, American Geological Institute.; CSAUnique: 1999-071631; AccNum: 1999-071631; ISSN: 0033-8222; CODEN: RACAAT},
	month = {1996},
	pages = {123},
	publisher = {University of Arizona, Department of Geosciences, Tucson, AZ, United States (USA)},
	organization = {University of Arizona, Department of Geosciences, Tucson, AZ, United States (USA)},
	address = {United States (USA)},
	keywords = {02D, 07, accelerator mass spectroscopy, C-14, carbon, Isotope geochemistry, isotopes, mass spectroscopy, Oceanography, Pacific Ocean, progress report, radioactive isotopes, report, sea water, spectroscopy},
	author = {von Reden, K. F. and McNichol, A. P. and Schneider, Robert J.}
}
@conference {1736,
	title = {Paleodischarge events on the Amazon Fan during the last glacial},
	booktitle = {AGU Annual Fall Meeting},
	year = {1995},
	note = {id: 1281},
	month = {1995},
	address = {San Francisco, California},
	author = {Showers, William J. and Genna, Bernard and Price, Pamela and Flood, Roger and Piper, David}
}
@article {943,
	title = {Paleosol evidence of anthropogenic impact on late Holocene landscape instability around an Anasazi site in Kane County, Utah},
	journal = {Abstracts with Programs - Geological Society of America},
	volume = {27},
	year = {1995},
	note = {id: 1271},
	pages = {416},
	author = {Kulp, T. R. and Rigsby, C. A.}
}
@article {753,
	title = {Possible Role of Climate in the Collapse of Classic Maya Civilization},
	journal = {Nature},
	volume = {375},
	year = {1995},
	note = {Rb101Times Cited:439Cited References Count:41},
	month = {Jun 1},
	pages = {391-394},
	abstract = {THE Maya civilization developed around 3,000 years ago in Mesoamerica, and after flourishing during the so-called Classic period, it collapsed around 750-900 AD(1). It has been speculated(2-6) that climate change may have played a part in this collapse. But efforts to reconstruct the last three millennia of Mesoamerican climate using palynological methods have met with equivocal success, because human-mediated deforestation has altered regional vegetation in ways that mimic climate shifts, making it difficult to discriminate between natural and anthropogenic changes(7-15). Here we use temporal variations in oxygen isotope and sediment composition in a 4.9-m sediment core from Lake Chichancanab, Mexico, to reconstruct a continuous record of Holocene climate change for the central Yucatan peninsula. The interval between 1,300 and 1,100 yr up (AD 800-1,000) was the driest of the middle to late Holocene epoch, and coincided with the collapse of Classic Maya civilization, This continuous climate proxy record thus provides evidence of climate deterioration in the Maya region during the terminal Classic period.},
	issn = {0028-0836},
	doi = {10.1038/375391a0},
	author = {Hodell, D. A. and Curtis, J. H. and Brenner, M.}
}
@mastersthesis {1320,
	title = {Paleoceanographic conditions of the late Wisconsinan marine transgression and regression in eastern coastal Maine: stable isotopic evidence. Thesis},
	volume = {Dissertation/Thesis},
	year = {1994},
	month = {1994},
	pages = {113},
	school = {University of Maine},
	address = {Orono, Maine},
	author = {Kreutz, K. J.}
}
@mastersthesis {1334,
	title = {A paleoenvironmental study of the southern Champlain Sea, Thesis},
	volume = {Dissertation/Thesis},
	year = {1994},
	month = {1994},
	school = {MIT},
	address = {Woods Hole, MA},
	author = {Schlegel, Mary Ann}
}
@article {2355,
	title = {Performance Characteristics of the 3-MV Tandetron AMS System at the National Ocean Sciences AMS Facility},
	journal = {Nuclear Instruments \& Methods in Physics Research Section B - Beam Interactions with Materials and Atoms},
	volume = {92},
	year = {1994},
	note = {id: 1619; PBS Record: 60; (03) KF Vonreden/Woods Hole Oceanog Inst/Natl Ocean Sci Accelerator/Mass Spectrometry Facil/Woods Hole, MA 02540 USA (42) English Article (44) NV547},
	month = {1994},
	pages = {7-11},
	keywords = {ACCELERATOR MASS-SPECTROMETER},
	isbn = {0168-583X},
	author = {von Reden, K. F. and Schneider, R. J. and Cohen, G. J. and Jones, G. A.}
}
@conference {1754,
	title = {Progress at the Woods Hole AMS Facility},
	booktitle = {13th International Conference on the Applications of Accelerators in Research and Industry},
	year = {1994},
	note = {id: 964},
	month = {1994},
	address = {Denton, TX},
	author = {Schneider, R. J.}
}
@conference {1741,
	title = {Performance characteristics of the 3MV tandetron AMS system at the National Ocean Sciences AMS Facility},
	booktitle = {6th International Conference on Accelerator Mass Spectrometry},
	year = {1993},
	note = {id: 936},
	month = {1993},
	pages = {2},
	address = {Canberra, Australia},
	author = {von Reden, K. F. and Schneider, R. J. and Cohen, G. J. and Jones, G. A.}
}
@article {887,
	title = {Plankton Environment and Marine Sediment Record of the Archipelago de Magallanes, Chile},
	journal = {EOS,Transactions,American Geophysical Union},
	volume = {74},
	year = {1993},
	note = {id: 902},
	pages = {372},
	author = {Anderson, D. M. and Archer, R. B.}
}
@article {963,
	title = {Progress report for the WOCE radiocarbon program},
	journal = {WOCE Notes},
	volume = {5},
	year = {1993},
	note = {id: 322},
	author = {Key, R. M. and Toggweiler, J. R.}
}
@article {1367,
	title = {Putting Ourselves to the Test: Analysis of the IAEA Intercomparison Samples},
	volume = {1},
	year = {1993},
	note = {id: 1612},
	month = {1993},
	pages = {3-4},
	author = {McNichol, A. P.}
}
@conference {1745,
	title = {Planung, Aufbau und Betrieb der Woods Hole AMS Anlage},
	booktitle = {AMS Symposium at Christian-Ausust University},
	year = {1992},
	note = {id: 1668},
	month = {1992},
	address = {Kiel, Germany},
	author = {von Reden, K. F.}
}
