@article {2713,
	title = {A human role in Andean megafaunal extinction?},
	journal = {Quaternary Science Reviews},
	volume = {205},
	year = {2019},
	month = {Jan-02-2019},
	pages = {154 - 165},
	abstract = {A new fossil pollen, Sporormiella, and sediment chemistry record from Lake Llaviucu, Ecuador, spanning the period from 16,280{\textendash}9000 years Before Present, provides a high-resolution record of paleoecological change in the high Andes. The deglacial transition from super-p{\'a}ramo through p{\'a}ramo grasslands, to Andean forest is traced, with near-modern systems being established by c. 11,900 years ago. It is suggested that forest elements probably existed in microrefugial populations close to the ice front. Sporormiella is used as a proxy for megafaunal abundance, and its decline to background levels is inferred to indicate a local extinction event at c. 12,800 years ago. About 1800 years prior to the extinction, charcoal becomes a regular sedimentary component in this very wet valley. An early date for human activity in the valley is suggested, with the direct implication of humans in the extinction of the megafauna.},
	keywords = {Andes, Deglaciation, Ecuador Extinction, Fossil pollen, Human arrival, Pleistocene megafauna, Sporormiella},
	issn = {02773791},
	doi = {10.1016/j.quascirev.2018.12.005},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0277379118307005},
	author = {Raczka, M.F. and Mosblech, N.A. and Giosan, L. and Valencia, B.G. and Folcik, A.M. and Kingston, M. and Baskin, S. and Bush, M.B.}
}
@article {2620,
	title = {Deglacial floods in the Beaufort Sea preceded Younger Dryas cooling},
	journal = {Nature Geoscience},
	volume = {11},
	year = {2018},
	month = {08/2018},
	pages = {599 - 604},
	abstract = {A period of cooling about 13,000 years ago interrupted about 2,000 years of deglacial warming. Known as the Younger Dryas (YD), the event is thought to have resulted from a slowdown of the Atlantic meridional overturning circulation in response to a sudden flood of Laurentide Ice Sheet meltwater that reached the Nordic Seas. Oxygen isotope evidence for a local source of meltwater to the open western North Atlantic from the Gulf of St Lawrence has been lacking. Here we report that the eastern Beaufort Sea contains the long-sought signal of O-18-depleted water. Beginning at similar to 12.94 {\textpm} 0.15 thousand years ago, oxygen isotopes in the planktonic foraminifera from two sediment cores as well as sediment and seismic data indicate a flood of meltwater, ice and sediment to the Arctic via the Mackenzie River that lasted about 700 years. The minimum in the oxygen isotope ratios lasted similar to 130 years. We suggest that the floodwater travelled north along the Canadian Archipelago and then through the Fram Strait to the Nordic Seas, where freshening and freezing near sites of deep-water formation would have suppressed convection and caused the YD cooling by reducing the meridional overturning.},
	issn = {1752-0894},
	doi = {10.1038/s41561-018-0169-6},
	url = {http://www.nature.com/articles/s41561-018-0169-6http://www.nature.com/articles/s41561-018-0169-6.pdfhttp://www.nature.com/articles/s41561-018-0169-6http://www.nature.com/articles/s41561-018-0169-6.pdf},
	author = {Keigwin, L. D. and Klotsko, S. and Zhao, N. and Reilly, B. and Giosan, L. and Driscoll, N. W.}
}
@article {552,
	title = {Composition and origin of authigenic carbonates in the Krishna-Godavari and Mahanadi Basins, eastern continental margin of India},
	journal = {Marine and Petroleum Geology},
	volume = {58},
	year = {2014},
	note = {AAy4wyTimes Cited:5Cited References Count:63},
	month = {Dec},
	pages = {438-460},
	abstract = {The mineralogical and stable isotopic composition of authigenic carbonates from the Krishna-Godavari (KG) and Mahanadi Basin provide a deeper insight into the processes inducing carbonate formation in the sediments of the eastern continental margin of India in the Bay of Bengal. Authigenic carbonate cements, (micro) nodules, bioturbation casts and tubes from 12 core locations drilled during the Indian National Gas Hydrate Program (NGHP) Expedition 01 were investigated for this study. Three main processes responsible for authigenic carbonate precipitation are identified: organoclastic sulfate reduction, anaerobic oxidation of methane and methanogenesis. Evidence of vigorous methane seepage is indicated in carbonates recovered at Sites 7, 10, 12 (KG Basin) and 19 (Mahanadi Basin). These methane-derived carbonates display typical paragenetic carbonate mineralogies (aragonite, high-Mg calcite with >15 Mol\% MgCO3, Ca-rich dolomite). Two separate horizons of methane derived-carbonates are correlated between 4 drill holes (up to \~{}16 km apart). The upper horizon has been dated with 14C (40,100 {\textendash} 51,600 a B.P. 1950) clearly indicating that methane seepage has been much more vigorous in the past possibly due to a glacial sea level lowstand.},
	issn = {0264-8172},
	doi = {10.1016/j.marpetgeo.2014.08.023},
	author = {Teichert, B. M. A. and Johnson, J. E. and Solomon, E. A. and Giosan, L. and Rose, K. and Kocherla, M. and Connolly, E. C. and Torres, M. E.}
}
@article {497,
	title = {DNA and lipid molecular stratigraphic records of haptophyte succession in the Black Sea during the Holocene},
	journal = {Earth and Planetary Science Letters},
	volume = {284},
	year = {2009},
	note = {id: 1853; 487NY Times Cited:1 Cited References Count:78; YY},
	pages = {610-621},
	abstract = {Previous studies suggest that the coccolithophorid haptophyte Emiliania huxleyi entered the Black Sea similar to 3400 yrs ago and since then a coccolith ooze defined as Unit I has developed. Unit I sediments contain long-chain alkenones derived from E huxleyi whereas the alkenone distribution of the deeper coccolith-free sapropel (Unit II) is rather unusual. Alkenone-derived past sea surface temperature (SST) estimates suggest a large difference between Unit II and Unit I, which is likely a result of unusual biological precursors of the alkenones in Unit II. Here, we report a high-resolution stratigraphic analysis of ancient haptophyte DNA to establish the Holocene succession of haptophytes as sources of the alkenones in the Black Sea. Haptophytes related to brackish Isochrysis spp. were the initial sources of alkenones, and appeared immediately after the onset of sapropel deposition (similar to 7550 yrs before present [a BP]). As salinity increased, Isochrysis-related haptophytes were slowly replaced by a complex suite of huxleyi strains as sources of alkenones. Our paleogenetic data showed that E. huxleyi colonized the Black Sea shortly after the onset of sapropel deposition, similar to 4000 yrs earlier than previously recognized based on their preserved coccoliths. E. huxleyi strains were the most likely source of the previously reported abundant and unusual C-36 di-unsaturated "Black Sea alkenone". Strong haptophyte species and strain-specific effects were observed on the level of unsaturation of alkenones which resulted in spurious alkenone-derived SST estimates before 5250 a BP. In contrast, from similar to 5250 a BP onwards a relatively stable haptophyte assemblage dominated by a different suite of E. huxleyi strains yielded robust alkenone-SST values and indicated a gradual cooling from 19 degrees C to similar to 15 degrees C at the top of the record (similar to 450 a BP). Published by Elsevier B.V.},
	issn = {0012-821X},
	doi = {10.1016/j.epsl.2009.05.029},
	author = {Coolen, M. J. L. and Saenz, J. P. and Giosan, L. and Trowbridge, N. Y. and Dimitrov, P. and Dimitrov, D. and Eglinton, T. I.}
}
@article {363,
	title = {Sinking deltas due to human activities},
	journal = {Nature Geoscience},
	volume = {2},
	year = {2009},
	note = {id: 799; 501BW Times Cited:2 Cited References Count:38; YY},
	pages = {681-686},
	abstract = {Many of the world{\textquoteright}s largest deltas are densely populated and heavily farmed. Yet many of their inhabitants are becoming increasingly vulnerable to flooding and conversions of their land to open ocean. The vulnerability is a result of sediment compaction from the removal of oil, gas and water from the delta{\textquoteright}s underlying sediments, the trapping of sediment in reservoirs upstream and floodplain engineering in combination with rising global sea level. Here we present an assessment of 33 deltas chosen to represent the world{\textquoteright}s deltas. We find that in the past decade, 85\% of the deltas experienced severe flooding, resulting in the temporary submergence of 260,000 km(2). We conservatively estimate that the delta surface area vulnerable to flooding could increase by 50\% under the current projected values for sea-level rise in the twenty-first century. This figure could increase if the capture of sediment upstream persists and continues to prevent the growth and buffering of the deltas.},
	issn = {1752-0894},
	doi = {10.1038/Ngeo629},
	author = {Syvitski, J. P. M. and Kettner, A. J. and Overeem, I. and Hutton, E. W. H. and Hannon, M. T. and Brakenridge, G. R. and Day, J. and Vorosmarty, C. and Saito, Y. and Giosan, L. and Nicholls, R. J.}
}
@article {433,
	title = {Was the Black Sea catastrophically flooded in the early Holocene?},
	journal = {Quaternary Science Reviews},
	volume = {28},
	year = {2009},
	note = {id: 866; 399HK Times Cited:0 Cited References Count:56; YY},
	pages = {1-6},
	abstract = {A catastrophic flooding of the Black Sea basin was proposed to have occurred during its reconnection to the ocean in the early Holocene. Possible cultural consequences of the flood include the migration of Neolithic farmers from around the Black Sea towards central Europe as well as the creation of flood myths. Stratigraphic and paleo-geomorphologic information from Danube delta aided by radiocarbon ages on articulated mollusks constrain the level in the Black Sea before the marine reconnection to ca 30 m below the present sea level rather than 80 m or lower. If the flood occurred at all, the sea level increase and the flooded area during the reconnection were significantly smaller than previously proposed. (C) 2008 Elsevier Ltd. All rights reserved.},
	issn = {0277-3791},
	doi = {10.1016/J.Quascirev.2008.10.012},
	author = {Giosan, L. and Filip, F. and Constatinescu, S.}
}
@article {321,
	title = {Holocene erosion of the Lesser Himalaya triggered by intensified summer monsoon},
	journal = {Geology},
	volume = {36},
	year = {2008},
	note = {id: 800; 247YL Times Cited:7 Cited References Count:27; YY},
	pages = {79-82},
	abstract = {Climate is one of the principal controls setting rates of continental erosion. Here we present the results of a provenance analysis of Holocene sediments from the Indus delta in order to assess climatic controls on erosion over millennial time scales. Bulk sediment Nd isotope analysis reveals a number of changes during the late Pleistocene and early Holocene (at 14-20,11-12 and 8-9 ka) away from erosion of the Karakoram and toward more sediment flux from the Himalaya. Radiometric Ar-Ar dating of muscovite and U-Pb dating of zircon sand grains indicate that the Lesser Himalaya eroded relatively more strongly than the Greater Himalaya as global climate warmed and the summer monsoon intensified after 14 ka. Monsoon rains appear to be the primary force controlling erosion across the western Himalaya, at least over millennial time scales. This variation is preserved with no apparent lag in sediments from the delta, but not in the deep Arabian Sea, due to sediment buffering on the continental shelf.},
	issn = {0091-7613},
	doi = {10.1130/G24315a.1},
	author = {Clift, P. D. and Giosan, L. and Biusztajn, J. and Campbell, I. H. and Allen, C. and Pringle, M. and Tabrez, A. R. and Danish, M. and Rabbani, M. M. and Alizai, A. and Carter, A. and Lueckge, A.}
}
@article {474,
	title = {The last reconnection of the Marmara Sea (Turkey) to the World Ocean: A paleoceanographic and paleoclimatic perspective},
	journal = {Marine Geology},
	volume = {255},
	year = {2008},
	note = {id: 801; 370ED Times Cited:4 Cited References Count:104; YY},
	pages = {64-82},
	abstract = {During the late glacial, marine isotope Stage 2, the Marmara Sea transformed into a brackish lake as global sea-level fell below the sill in the Dardanelles Strait. A record of the basin{\textquoteright}s reconnection to the global ocean is preserved in its sediments permitting the extraction of the paleoceanographic and paleoclimatic history of the region. The goal of this study is to develop a high-resolution record of the lacustrine to marine transition of Marmara Sea in order to reconstruct regional and global climatic events at a millennia] scale. For this purpose, we mapped the paleoshorelines of Marmara Sea along the northern, eastern, and southern shelves at Cekmece. Prince Islands, and Imrali, using data from multibeam bathymetry, high-resolution subbottom profiling (chirp) and ten sediment cores. Detailed sedimentologic, biostratigraphic (foraminifers, mollusk, diatoms), X-ray fluorescence geochemical scanning, and oxygen and carbon stable isotope analyses correlated to a calibrated radiocarbon chronology provided evidence for cold and city conditions prior to 15 ka BP, warm conditions of the Bolling-Allerod from similar to 15 to 13 ka BP, a rapid marine incursion at 12 ka BP, still stand of Marmara Sea and sediment reworking of the paleoshorelines during the Younger Dryas at similar to 11.5 to 10.5 ka BP, and development of strong stratification and influx of nutrients as Black Sea waters spilled into Marmara Sea at 9.2 ka BR Stable environmental conditions developed in Marmara Sea after 6.0 ka BP as sea-level reached its present shoreline and the basin floors filled with sediments achieving their present configuration. (C) 2008 Elsevier B.V. All rights reserved.},
	issn = {0025-3227},
	doi = {10.1016/j.margeo.2008.07.005},
	author = {McHugh, C. M. G. and Gurung, D. and Giosan, L. and Ryan, W. B. F. and Mart, Y. and Sancar, U. and Burckle, L. and Cagatay, M. N.}
}
@article {324,
	title = {Research focus - Tempestuous highs and lows in the Gulf of Mexico},
	journal = {Geology},
	volume = {36},
	year = {2008},
	note = {id: 863; ISI Document Delivery No.: 344QW Times Cited: 3 Cited Reference Count: 25 Cited References: BLUM MD, 2003, T GULF COAST ASS GEO, V53, P64 BLUM MD, 2008, GEOLOGY, V36, P675, DOI 10.1130/G24728A.1 DONNELLY JP, 2007, NATURE, V447, P465, DOI 10.1038/nature05834 GIOSAN L, 2006, GEOLOGY, V34, P757, DOI 10.1130/G22587.1 HUTTON EWH, 2008, COMPUT GEOSCI-UK, V34, P1319, DOI 10.1016/j.cageo.2008.02.013 IVINS ER, 2007, GEOPHYS RES LETT, V34, ARTN L16303 JURKOWSKI G, 1984, J GEOPHYS RES, V89, P6247 KOMAR PD, 2008, J COASTAL RES, V24, P479, DOI 10.2112/07-0894.1 LAMBERT WJ, 2003, T GULF COAST ASS GEO, V53, P433 LIU KB, 2004, HURRICANES TYPHOONS, P13 LOPEZ GI, 2008, J COASTAL RES, P49 MILLIKEN KT, 2008, GEOL S AM S, V443, P1, DOI 10.1130/2008.2443(01) MORTON RA, 2000, J SEDIMENT RES A, V70, P478 OTVOS EG, 1995, J COASTAL RES, V11, P984 OTVOS EG, 1999, J COASTAL RES, V15, P438 OTVOS EG, 2000, GEOMORPHOLOGY, V32, P83 OTVOS EG, 2002, QUATERNARY RES, V57, P425 RODRIGUEZ AB, 2004, J SEDIMENT RES, V74, P405 RODRIGUEZ AB, 2006, J SEDIMENT RES, V76, P257, DOI 10.2110/jsr.2006.018 SHEPARD FP, 1964, SCIENCE, V143, P574 STAPOR FW, 1991, J COASTAL RES, V7, P815 TANNER WF, 1992, B AM METEOROL SOC, V73, P297 TANNER WF, 1995, MAR GEOL, V129, P149 TORNQVIST TE, 2006, GEOLOGY, V34, P697, DOI 10.1130/G22624.1 WRIGHT EE, 2005, J SEDIMENT RES, V75, P621 Donnelly, Jeffrey P. Giosan, Liviu Geological soc amer, inc Boulder; YY},
	pages = {751-752},
	issn = {0091-7613},
	doi = {10.1130/focus092008.1},
	author = {Donnelly, J. P. and Giosan, L.}
}
@inbook {1423,
	title = {The Geographic, Geological and Oceanographic Setting of the Indus River},
	booktitle = {Large Rivers},
	year = {2007},
	note = {id: 867; Y},
	month = {2007},
	publisher = {Wiley Press},
	organization = {Wiley Press},
	author = {Inam, A. and Clift, P. D. and Giosan, L.},
	editor = {Gupta, A.}
}
@conference {1665,
	title = {Late Holocene climate variability of South America reconstructed by a multi-proxy analysis of Chilean fjord sediments},
	booktitle = {Abstracts, EGU General Assembly},
	year = {2006},
	note = {id: 560},
	month = {2006},
	address = {Vienna, Austria},
	author = {Bertrand, S. and Hughen, K. A. and Giosan, L. and Tierney, J. and Sepfulveda, J. and Pantoja, S.}
}
@article {679,
	title = {Young Danube delta documents stable Black Sea level since the middle Holocene: Morphodynamic, paleogeographic, and archaeological implications},
	journal = {Geology},
	volume = {34},
	year = {2006},
	note = {084aqTimes Cited:63Cited References Count:35},
	month = {Sep},
	pages = {757-760},
	abstract = {New radiocarbon and optical dates show that the Holocene Danube delta started to build out of a Black Sea embayment similar to 5200 yr ago. Delta lobe development phases differ by as much as 5 k.y. from previously proposed ages. The new chronology allows for a better understanding of the Danube delta paleogeography, including the demise of Istria, the main ancient Greek-Roman city in the region. Prior reconstructions of sea level in the Black Sea inferred fluctuations to 15 m in range; however, stratigraphy of beach ridges in the delta shows that the relative Black Sea level for the past 5 k.y. was stable in the Danube delta region within -2 m and +1.5 of the current level. Hydroisostatic effects related to a proposed catastrophic reconnection of the Black Sea to the World Ocean in the early Holocene may have been responsible for the sea level reaching the highstand earlier than estimated by models. The new sea-level data suggest that submergence at several ancient settlements around the Black Sea may be better explained by local factors such as subsidence rather than by basin-wide sea-level fluctuations.},
	issn = {0016-8505},
	doi = {10.1130/G22587.1},
	author = {Giosan, L. and Donnelly, J. P. and Constantinescu, S. and Filip, F. and Ovejanu, I. and Vespremeanu-Stroe, A. and Vespremeanu, E. and Duller, G. A. T.}
}
@article {1997,
	title = {Morphodynamics and evolution of Danube delta},
	journal = {Journal of Sedimentary Research},
	volume = {SP 83},
	year = {2005},
	note = {id: 499},
	month = {2005},
	pages = {391-410},
	author = {Giosan, L. and Vespremeanu, E. and Donnelly, J. P. and Bhattacharya, J. and Buonaiuto, F.}
}
