Eustatic variations during the Paleocene-Eocene greenhouse world

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doi: 10.1029/2008PA001615
Author(s): Sluijs, Appy; Brinkhuis, Henk; Crouch, Erica M.; John, Cédric M.; Handley, Luke; Munsterman, Dirk; Bohaty, Steven M.; Zachos, James C.; Reichart, Gert-Jan; Schouten, Stefan; Pancost, Richard D.; Sinninghe Damsté, Jaap S.; Welters, Natasja L. D.; Lotter, André F.; Dickens, Gerald R.
Author Affiliation(s): Primary:
Utrecht University, Laboratory of Palaeobotany and Palynology, Utrecht, Netherlands
Other:
GNS Science, New Zealand
University of California at Santa Cruz, United States
University of Bristol, United Kingdom
National Geological Survey, Netherlands
Royal Netherlands Institute for Sea Research, Netherlands
Rice University, United States
Volume Title: Paleoceanography
Source: Paleoceanography, 23(4). Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0883-8305 CODEN: POCGEP
Note: In English. 120 refs.; illus., incl. charts, strat. col.
Summary: We reconstruct eustatic variations during the latest Paleocene and earliest Eocene (∼58-52 Ma). Dinoflagellate cysts, grain size fractions, and organic biomarkers in marine sections at four sites from three continents indicate an increased distance to the coast during the Paleocene-Eocene thermal maximum (PETM). The same trend is recognized in published records from other sites around the world. Together, the data indicate a eustatic rise during the PETM, beginning 20 to 200 ka before the globally recorded negative carbon isotope excursion (CIE) at ∼55.5 Ma. Although correlations are tentative, we recognize other global transgressions during Chrons C25n and C24n. The latter may be associated with Eocene Thermal Maximum 2 (∼53.5 Ma) or the X-event (∼52 Ma). These results suggest a link between global sea level and hyperthermal intervals, potentially because of the melting of small alpine ice sheets on Antarctica, thermal expansion of seawater, or both. However, the early onset of sea level rise relative to the CIE of the PETM suggests contributions from other mechanisms, perhaps decreasing ocean basin volume, on sea level rise.
Year of Publication: 2008
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Antarctic ice sheet; Antarctica; Atlantic Coastal Plain; Atlantic Ocean; Bass River; Biomarkers; Biostratigraphy; C-13/C-12; Carbon; Cenozoic; Dinoflagellata; Eocene; Eustasy; Foraminifera; Grain size; Ice sheets; Invertebrata; Isotope ratios; Isotopes; Leg 174AX; Lower Eocene; Marine environment; Melting; Microfossils; Nannofossils; North Atlantic; North Sea; O-18/O-16; Ocean Drilling Program; Oxygen; Pacific Ocean; Paleocene; Paleocene-Eocene Thermal Maximum; Paleoclimatology; Paleoenvironment; Paleogene; Palynomorphs; Plantae; Protista; Sea-level changes; South Pacific; Southwest Pacific; Stable isotopes; Tertiary; Transgression; United States; Upper Paleocene; West Pacific; Wilson Lake
Coordinates: N383000 N401500 W0740000 W0753500
Record ID: 2010010154
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