/* DATA DESCRIPTION:
Citation:	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D (2021): Paleogene sample-based total organic carbon and Rock-eval pyrolysis measurements and petrophysical calculations of total organic carbon for multiple wells in the Gulf of Mexico [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.929437
Abstract:	Deposition of the Paleocene-Eocene Wilcox Group (Gp) in the northern Gulf of Mexico (GoM) occurred during dramatic global climate and regional tectonic change. Key drivers impacting the GoM over this time were 1) significantly enhanced runoff and sediment supply from the developing Laramide hinterland, 2) intense global warming culminating in the Paleocene–Eocene Thermal Maximum (PETM) at ~56 Ma, and 3) proposed Paleogene restriction of the GoM as Cuba docked with Yucatan-Bahamas-Florida. In this paper, we investigate biological and organic geochemical responses to these drivers across the PETM and identify spatial variations in productivity, oxygenation, and ultimately, ventilation. The PETM has been identified by calcareous nannofossil marker taxa and/or excursion taxa from the genera Rhomboaster and Discoaster that exclusively existed during the event. A calcareous nannofossil transition from cool eutrophic to warm oligotrophic assemblages occurs across the PETM broadly over the GoM suggesting that surface water nutrient supply decreased due to slowing circulation or increased sequestration of nutrients along the margins. Associated radiolarian bursts indicate additional factors, such as eustacy and runoff, may have modulated nutrient supply. Benthic habitats were impacted as agglutinated foraminifera, which were dominant in the Paleocene, disappeared at the PETM over submarine fan environments while calcareous benthic forams remained largely absent until the late Eocene. Deoxygenation may have contributed to benthic ecosystem decline as marine kerogen enrichment is noted broadly in the middle Wilcox and PETM. Total organic carbon is generally < 3 wt % except in more isolated marginal settings suggesting that deep-basin dysoxia co-existed with a variably enhanced oxygen minimum. We suggest these biotic and organic geochemical responses reflect connection to the Global Ocean during the PETM, with ventilation reduced but not eliminated by increases in salinity stratification due to runoff and reductions in deeper water entry into the GoM at gateways.
Keyword(s):	anoxia; Deoxygenation; dysoxia; gateway; Gulf of Mexico; Organic carbon; Paleocene-Eocene Thermal Maximum; PETM; productivity; runoff; sequestration; Stratification; Wilcox Group
Related to:	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2022): Productivity and organic carbon trends through the Wilcox Group in the deep Gulf of Mexico: Evidence for ventilation during the Paleocene-Eocene Thermal Maximum. Marine and Petroleum Geology, 140, 105634, https://doi.org/10.1016/j.marpetgeo.2022.105634
Coverage:	MEDIAN LATITUDE: 27.349325 * MEDIAN LONGITUDE: -91.549624 * SOUTH-BOUND LATITUDE: 21.450150 * WEST-BOUND LONGITUDE: -95.755770 * NORTH-BOUND LATITUDE: 30.412560 * EAST-BOUND LONGITUDE: -87.685240
	DATE/TIME START: 2016-07-04T00:00:00 * DATE/TIME END: 2016-07-04T00:00:00
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Size:	23 datasets
*/
/* TABULAR SUMMARY OF DATASETS LISTED IN THIS COLLECTION: */
Filename	Citation of child dataset
364-M0077A_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well 364-M0077A. https://doi.org/10.1594/PANGAEA.929801
Alaminos_Canyon_557_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Alaminos_Canyon_557_1. https://doi.org/10.1594/PANGAEA.929807
Alaminos_Canyon_8571_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Alaminos_Canyon_857_1. https://doi.org/10.1594/PANGAEA.929806
Atwater_Valley_026_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Atwater_Valley_026_1. https://doi.org/10.1594/PANGAEA.929797
Atwater_Valley_182_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Atwater_Valley_182_1. https://doi.org/10.1594/PANGAEA.929818
Blackstone_A-318_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Blackstone_A-318. https://doi.org/10.1594/PANGAEA.929802
De_Soto_Canyon_269_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well De_Soto_Canyon_269_1. https://doi.org/10.1594/PANGAEA.929800
De_Soto_Canyon_927_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well De_Soto_Canyon_927_1. https://doi.org/10.1594/PANGAEA.929799
Green_Canyon_653_3_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Green_Canyon_653_3. https://doi.org/10.1594/PANGAEA.929817
Green_Canyon_826_3_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Green_Canyon_826_3. https://doi.org/10.1594/PANGAEA.929815
Jeanerette_Minerals_LLC_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Jeanerette_Minerals_LLC_1. https://doi.org/10.1594/PANGAEA.929805
Keathley_Canyon_102_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Keathley_Canyon_102_1. https://doi.org/10.1594/PANGAEA.929827
Keathley_Canyon_596_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Keathley_Canyon_596_1. https://doi.org/10.1594/PANGAEA.929828
Keathley_Canyon_681_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Keathley_Canyon_681_1. https://doi.org/10.1594/PANGAEA.929809
Keathley_Canyon_919_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Keathley_Canyon_919_1. https://doi.org/10.1594/PANGAEA.929811
Lineham_Creek_SL_20571_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Lineham_Creek_SL_20571_1. https://doi.org/10.1594/PANGAEA.929803
Lloyd_Ridge_399_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Lloyd_Ridge_399_1. https://doi.org/10.1594/PANGAEA.929798
Sigsbee_Escarpment_039_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Sigsbee_Escarpment_039_1. https://doi.org/10.1594/PANGAEA.929812
South_Marsh_Island_230_A1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well South_Marsh_Island_230_A1. https://doi.org/10.1594/PANGAEA.929783
W_L_Crews_Et_Al_Estate_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well W_L_Crews_Et_Al_Estate_1. https://doi.org/10.1594/PANGAEA.929780
Walker_Ridge_096_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Walker_Ridge_096_1. https://doi.org/10.1594/PANGAEA.929813
Walker_Ridge_584_1_TOCc.tab	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D; Avery, Aaron (2021): Delta LogR TOC measuremet in well Walker_Ridge_584_1. https://doi.org/10.1594/PANGAEA.929814
NOT INCLUDED (available online only at https://download.pangaea.de/dataset/928648/files/S15_Sample_TOC_RE_C13-1.xlsx)	Cunningham, Robert; Phillips, Marcie Purkey; Snedden, John W; Norton, Ian O; Lowery, Christopher M; Virdell, Jon W; Barrie, Craig D (2021): Samples, TOC, RE and 13C measurement in Wilcox Group sediments. https://doi.org/10.1594/PANGAEA.928648
