Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene Thermal Maximum

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doi: 10.1038/nature04668
Author(s): Sluijs, Appy; Schouten, Stefan; Pagani, Mark; Woltering, Martijn; Brinkhuis, Henk; Sinninghe Damsté, Jaap S.; Dickens, Gerald R.; Huber, Matthew; Reichart, Gert-Jan; Stein, Ruediger; Matthiessen, Jens; Lourens, Lucas J.; Pedentchouk, Nikolai; Backman, Jan; Moran, Kathryn
Integrated Ocean Drilling Program, Expedition 302 Scientists, College Station, TX
Author Affiliation(s): Primary:
Utrecht University, Institute of Environmental Biology, Utrecht, Netherlands
Royal Netherlands Institute for Sea Research, Netherlands
Yale University, United States
Rice University, United States
Purdue University, United States
Alfred Wegener Institute for Polar and Marine Research, Federal Republic of Germany
Stockholm University, Sweden
Volume Title: Nature (London)
Source: Nature (London), 441(7093), p.610-613. Publisher: Macmillan Journals, London, United Kingdom. ISSN: 0028-0836 CODEN: NATUAS
Note: In English. 30 refs.; illus.
Summary: Descriptions are presented of a Palaeogene marine sedimentary succession recorded by a cored borehole on the Lomonosov Ridge, during the IODP Arctic Coring Expedition. Lower Eocene and Upper Palaeocene sediments consist of organic-rich (∼2% TOC) siliciclastic claystones. The Palaeocene/Eocene thermal (PETM) maximum, based on a prominent negative δ13C isotope excursion, was identified in the core on the identification of a dinocyst species. Core recovery, palynological and geochemical data (including δ13CPDB) are summarized diagrammatically. With the latest Palaeocene SSTs of 18°C it is unlikely that ice was present in the Arctic, and the cored succession presents evidence of the Arctic enviroment, and of the nature of polar amplification during massive greenhouse gas emissions and extreme global warming in the absence of ice-albedo feedback.
Year of Publication: 2006
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Arctic Coring EXpedition; Arctic Ocean; C-13/C-12; Carbon; Cenozoic; Climate change; Cores; Expedition 302; Integrated Ocean Drilling Program; Isotope ratios; Isotopes; Lomonosov Ridge; Marine environment; Ocean circulation; Paleo-oceanography; Paleocene-Eocene Thermal Maximum; Paleoclimatology; Paleogene; Reconstruction; Sea-surface temperature; Stable isotopes; Subtropical environment; Tertiary
Coordinates: N875100 N875600 E1393300 E1361000
Record ID: 2010030633
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom