@article {2481,
	title = {Sedimentation Pulse in the NE Gulf of Mexico following the 2010 DWH Blowout},
	journal = {PLOS ONE},
	volume = {10},
	year = {2015},
	month = {Feb-07-2016},
	pages = {e0132341},
	abstract = {The objective of this study was to investigate the impacts of the Deepwater Horizon (DWH) oil discharge at the seafloor as recorded in bottom sediments of the DeSoto Canyon region in the northeastern Gulf of Mexico. Through a close coupling of sedimentological, geochemical, and biological approaches, multiple independent lines of evidence from 11 sites sampled in November/December 2010 revealed that the upper ~1 cm depth interval is distinct from underlying sediments and results indicate that particles originated at the sea surface. Consistent dissimilarities in grain size over the surficial ~1 cm of sediments correspond to excess 234Th depths, which indicates a lack of vertical mixing (bioturbation), suggesting the entire layer was deposited within a 4{\textendash}5 month period. Further, a time series from four deep-sea sites sampled up to three additional times over the following two years revealed that excess 234Th depths, accumulation rates, and 234Th inventories decreased rapidly, within a few to several months after initial coring. The interpretation of a rapid sedimentation pulse is corroborated by stratification in solid phase Mn, which is linked to diagenesis and redox change, and the dramatic decrease in benthic formanifera density that was recorded in surficial sediments. Results are consistent with a brief depositional pulse that was also reported in previous studies of sediments, and marine snow formation in surface waters closer to the wellhead during the summer and fall of 2010. Although sediment input from the Mississippi River and advective transport may influence sedimentation on the seafloor in the DeSoto Canyon region, we conclude based on multidisciplinary evidence that the sedimentation pulse in late 2010 is the product of marine snow formation and is likely linked to the DWH discharge.},
	doi = {10.1371/journal.pone.0132341},
	url = {http://dx.plos.org/10.1371/journal.pone.0132341},
	author = {Brooks, Gregg R. and Larson, Rebekka A. and Schwing, Patrick T. and Romero, Isabel and Moore, Christopher and Reichart, Gert-Jan and Jilbert, Tom and Chanton, Jeff P. and Hastings, David W. and Overholt, Will A. and Marks, Kala P. and Kostka, Joel E. and Holmes, Charles W. and Hollander, David},
	editor = {Chin, Wei-Chun}
}
@article {2480,
	title = {Using Natural Abundance Radiocarbon To Trace the Flux of Petrocarbon to the Seafloor Following the Deepwater Horizon Oil Spill},
	journal = {Environmental Science \& Technology},
	volume = {49},
	year = {2015},
	month = {Aug-01-2016},
	pages = {847 - 854},
	abstract = {In 2010, the Deepwater Horizon accident released 4.6{\textendash}6.0 {\texttimes} 1011 grams or 4.1 to 4.6 million barrels of fossil petroleum derived carbon (petrocarbon) as oil into the Gulf of Mexico. Natural abundance radiocarbon measurements on surface sediment organic matter in a 2.4 {\texttimes} 1010 m2 deep-water region surrounding the spill site indicate the deposition of a fossil-carbon containing layer that included 1.6 to 2.6 {\texttimes} 1010 grams of oil-derived carbon. This quantity represents between 0.5 to 9.1\% of the released petrocarbon, with a best estimate of 3.0{\textendash}4.9\%. These values may be lower limit estimates of the fraction of the oil that was deposited on the seafloor because they focus on a limited mostly deep-water area of the Gulf, include a conservative estimate of thickness of the depositional layer, and use an average background or prespill radiocarbon value for sedimentary organic carbon that produces a conservative value. A similar approach using hopane tracer estimated that 4{\textendash}31\% of 2 million barrels of oil that stayed in the deep sea settled on the bottom. Converting that to a percentage of the total oil that entered into the environment (to which we normalized our estimate) converts this range to 1.8 to 14.4\%. Although extrapolated over a larger area, our independent estimate produced similar values.},
	issn = {0013-936X},
	doi = {10.1021/es5046524},
	url = {http://pubs.acs.org/doi/abs/10.1021/es5046524http://pubs.acs.org/doi/pdf/10.1021/es5046524},
	author = {Chanton, Jeffrey and Zhao, Tingting and Rosenheim, Brad E. and Joye, Samantha and Bosman, Samantha and Brunner, Charlotte and Yeager, Kevin M. and Diercks, Arne R. and Hollander, David}
}
@article {68,
	title = {Using Natural Abundance Radiocarbon To Trace the Flux of Petrocarbon to the Seafloor Following the Deepwater Horizon Oil Spill},
	journal = {Environmental science \& technology},
	year = {2014},
	abstract = {In 2010, the Deepwater Horizon accident released 4.6?6.0 ? 1011 grams or 4.1 to 4.6 million barrels of fossil petroleum derived carbon (petrocarbon) as oil into the Gulf of Mexico. Natural abundance radiocarbon measurements on surface sediment organic matter in a 2.4 ? 1010 m2 deep-water region surrounding the spill site indicate the deposition of a fossil-carbon containing layer that included 1.6 to 2.6 ? 1010 grams of oil-derived carbon. This quantity represents between 0.5 to 9.1\% of the released petrocarbon, with a best estimate of 3.0?4.9\%. These values may be lower limit estimates of the fraction of the oil that was deposited on the seafloor because they focus on a limited mostly deep-water area of the Gulf, include a conservative estimate of thickness of the depositional layer, and use an average background or prespill radiocarbon value for sedimentary organic carbon that produces a conservative value. A similar approach using hopane tracer estimated that 4?31\% of 2 million barrels of oil that stayed in the deep sea settled on the bottom. Converting that to a percentage of the total oil that entered into the environment (to which we normalized our estimate) converts this range to 1.8 to 14.4\%. Although extrapolated over a larger area, our independent estimate produced similar values.; In 2010, the Deepwater Horizon accident released 4.6?6.0 ? 1011 grams or 4.1 to 4.6 million barrels of fossil petroleum derived carbon (petrocarbon) as oil into the Gulf of Mexico. Natural abundance radiocarbon measurements on surface sediment organic matter in a 2.4 ? 1010 m2 deep-water region surrounding the spill site indicate the deposition of a fossil-carbon containing layer that included 1.6 to 2.6 ? 1010 grams of oil-derived carbon. This quantity represents between 0.5 to 9.1\% of the released petrocarbon, with a best estimate of 3.0?4.9\%. These values may be lower limit estimates of the fraction of the oil that was deposited on the seafloor because they focus on a limited mostly deep-water area of the Gulf, include a conservative estimate of thickness of the depositional layer, and use an average background or prespill radiocarbon value for sedimentary organic carbon that produces a conservative value. A similar approach using hopane tracer estimated that 4?31\% of 2 million barrels of oil that stayed in the deep sea settled on the bottom. Converting that to a percentage of the total oil that entered into the environment (to which we normalized our estimate) converts this range to 1.8 to 14.4\%. Although extrapolated over a larger area, our independent estimate produced similar values.},
	issn = {0013-936X},
	doi = {10.1021/es5046524},
	url = {http://dx.doi.org/10.1021/es5046524},
	author = {Chanton, Jeffrey and Zhao, Tingting and Rosenheim, Brad E. and Joye, Samantha and Bosman, Samantha and Brunner, Charlotte and Yeager, Kevin M. and Diercks, Arne R. and Hollander, David}
}
@article {391,
	title = {Sea level rise in Tampa Bay},
	journal = {Eos, Transactions, American Geophysical Union},
	volume = {88},
	year = {2007},
	note = {id: 1899; References: 14; illus. incl. geol. sketch map Latitude:N272700,N280200 Longitude:W0822200,W0825100Y},
	pages = {117-118},
	issn = {0096-3941},
	doi = {10.1029/2007eo100002},
	author = {Cronin, Thomas M. and Edgar, N. Terence and Brooks, Gregg and Hastings, David and Larson, Rebekka and Hine, Albert and Locker, Stanley and Suthard, Beau and Flower, Benjamin and Hollander, David and Wehmiller, John and Willard, Debra A. and Smith, Shannon}
}
@article {1002,
	title = {Consistent Fractionation of 13C in Nature and in the Laboratory: Growth-rate Effects in Some Haptophyte Algae},
	journal = {Global Biogeochemical Cycles},
	volume = {11},
	year = {1997},
	note = {id: 1727},
	pages = {279-292},
	abstract = {The carbon isotopic fractionation accompanying formation of biomass by alkenone-producing algae in natural marine environments varies systematically with the concentration of dissolved phosphate. Specifically, if the fractionation is expressed by єP ≈ δe - δp, where δe and δp are the δ13C values for dissolved CO2 and for algal biomass (determined by isotopic analysis of C37 alkadienones), respectively, and if Ce is the concentration of dissolved CO2, μmol kg-1, then b = 38 + 160*[PO4], where [PO4] is the concentration of dissolved phosphate, μM, and b = (25 - єp)Ce. The correlation found between b and [PO4] is due to effects linking nutrient levels to growth rates and cellular carbon budgets for alkenone-containing algae, most likely by trace-metal limitations on algal growth. The relationship reported here is characteristic of 39 samples (r2 = 0.95) from the Santa Monica Basin (six different times during the annual cycle), the equatorial Pacific (boreal spring and fall cruises as well as during an iron-enrichment experiment), and the Peru upwelling zone. Points representative of samples from the Sargasso Sea ([PO4] <= 0.1 μM) fall above the b = f[PO4] line. Analysis of correlations expected between μ (growth rate), єp, and Ce shows that, for our entire data set, most variations in єp result from variations in μ rather than Ce. Accordingly, before concentrations of dissolved CO2 can be estimated from isotopic fractionations, some means of accounting for variations in growth rate must be found, perhaps by drawing on relationships between [PO4] and Cd/Ca ratios in shells of planktonic foraminifera.},
	doi = {10.1029/96GB03939},
	author = {Bidigare, Robert R. and Fluegge, Arnim and Freeman, Katherine H. and Hanson, Kristi L. and Hayes, John M. and Hollander, David and Jasper, John P. and King, Linda L. and Laws, Edward A. and Milder, Jeffrey and Millero, Frank J. and Pancost, Richard and Popp, Brian N. and Sternberg, Paul A. and Wakeham, Stuart G.}
}
