Paleocene-Eocene Thermal Maximum and the Opening of the Northeast Atlantic

Michael Storey, Robert A. Duncan, Carl C. Swisher, III

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

    Abstract

    The Paleocene-Eocene thermal maximum (PETM) has been attributed to a sudden release of carbon dioxide and/or methane. 40Ar/39Ar age determinations show that the Danish Ash-17 deposit, which overlies the PETM by about 450,000 years in the Atlantic, and the Skraenterne Formation Tuff, representing the end of 1 ± 0.5 million years of massive volcanism in East Greenland, are coeval. The relative age of Danish Ash-17 thus places the PETM onset after the beginning of massive flood basalt volcanism at 56.1 ± 0.4 million years ago but within error of the estimated continental breakup time of 55.5 ± 0.3 million years ago, marked by the eruption of mid-ocean ridge basalt-like flows. These correlations support the view that the PETM was triggered by greenhouse gas release during magma interaction with basin-filling carbon-rich sedimentary rocks proximal to the embryonic plate boundary between Greenland and Europe. © 2007 American Association for the Advancement of Science. All Rights Reserved

    OriginalsprogEngelsk
    TidsskriftScience
    Vol/bind316
    Udgave nummer5824
    Sider (fra-til)587-589
    Antal sider3
    ISSN0036-8075
    DOI
    StatusUdgivet - 2007

    Citer dette

    Storey, M., Duncan, R. A., & Swisher, III, C. C. (2007). Paleocene-Eocene Thermal Maximum and the Opening of the Northeast Atlantic. Science, 316(5824), 587-589. https://doi.org/10.1126/science.1135274