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Colosimo, Amanda B; Bralower, Timothy J; Zachos, James C (2006): Mineral and foraminifer composition of sediments across the Paleocene/Eocene Thermal Maximum from ODP Leg 198 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.777468, Supplement to: Colosimo, AB et al. (2006): Evidence for lysocline shoaling at the Paleocene/Eocene Thermal Maximum on Shatsky Rise, northwest Pacific. In: Bralower, TJ; Premoli Silva, I; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 198, 1-36, https://doi.org/10.2973/odp.proc.sr.198.112.2006

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Abstract:
The Paleocene/Eocene Thermal Maximum (PETM) was a transient interval of global warming ~55 m.y. ago associated with transformation of ecosystems and changes in carbon cycling. The event was caused by the input of massive amounts of CO2 or CH4 to the ocean-atmosphere system. Rapid shoaling of the lysocline and calcite compensation depth (CCD) is a predicted response of CO2 or CH4 input; however, the extent of this shoaling is poorly constrained. Investigation of Ocean Drilling Program (ODP) Sites 1209-1212 at Shatsky Rise, which lies along a depth transect, suggests a minimum lysocline shoaling of ~500 m in the tropical Pacific Ocean during the PETM. The sites also show evidence of CaCO3 dissolution within the sediment column, carbonate "burn-down" below the level of the carbon isotope excursion, and a predicted response to a rapid change in deepwater carbonate saturation. Close examination of several foraminiferal preservation proxies (i.e., fragmentation, benthic/planktonic foraminiferal ratios, coarse fraction, and CaCO3 content) and observations of foraminifers reveal that increased fragmentation levels most reliably predict intervals with visually impoverished foraminiferal preservation as a result of dissolution. Low CaCO3 content and high benthic/planktonic ratios also mirror intervals of poorest preservation.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 32.331485 * Median Longitude: 158.081737 * South-bound Latitude: 32.002030 * West-bound Longitude: 157.711660 * North-bound Latitude: 32.651800 * East-bound Longitude: 158.505930
Date/Time Start: 2001-09-19T13:35:00 * Date/Time End: 2001-10-12T01:30:00
Event(s):
198-1209B * Latitude: 32.651800 * Longitude: 158.505930 * Date/Time Start: 2001-09-19T13:35:00 * Date/Time End: 2001-09-21T07:10:00 * Elevation: -2387.4 m * Penetration: 298 m * Recovery: 303.17 m * Location: North Pacific Ocean * Campaign: Leg198 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 297.6 m cored; 0.4 m drilled; 101.9 % recovery
198-1210B * Latitude: 32.223660 * Longitude: 158.259360 * Date/Time Start: 2001-09-24T14:15:00 * Date/Time End: 2001-09-27T00:00:00 * Elevation: -2573.2 m * Penetration: 377 m * Recovery: 376.36 m * Location: North Pacific Ocean * Campaign: Leg198 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 42 cores; 365.5 m cored; 11.5 m drilled; 103 % recovery
198-1211C * Latitude: 32.002030 * Longitude: 157.850000 * Date/Time Start: 2001-10-10T17:45:00 * Date/Time End: 2001-10-12T01:30:00 * Elevation: -2906.9 m * Penetration: 138.3 m * Recovery: 140.87 m * Location: North Pacific Ocean * Campaign: Leg198 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 138.3 m cored; 0 m drilled; 101.9 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Colosimo, AB; Bralower, TJ; Zachos, JC (2006): (Table T1) Mineral and foraminifer composition of sediments across the Paleocene/Eocene Thermal Maximum of ODP Hole 198-1209B. https://doi.org/10.1594/PANGAEA.777464
  2. Colosimo, AB; Bralower, TJ; Zachos, JC (2006): (Table T2) Mineral and foraminifer composition of sediments across the Paleocene/Eocene Thermal Maximum of ODP Hole 198-1210B. https://doi.org/10.1594/PANGAEA.777465
  3. Colosimo, AB; Bralower, TJ; Zachos, JC (2006): (Table T4) Mineral and foraminifer composition of sediments across the Paleocene/Eocene Thermal Maximum of ODP Hole 198-1211C. https://doi.org/10.1594/PANGAEA.777467
  4. Colosimo, AB; Bralower, TJ; Zachos, JC (2006): (Table T3) Mineral and foraminifer composition of sediments across the Paleocene/Eocene Thermal Maximum of ODP Hole 198-1212B. https://doi.org/10.1594/PANGAEA.777466