Cycles of humid-dry climate conditions around the P/E boundary: New stable isotope data from terrestrial organic matter in Vasterival section (NW France)

Jean Yves Storme, Christian Dupuis, Johann Schnyder, Florence Quesnel, Sylvain Garel, Alina I. Iakovleva, Paola Iacumin, Antonietta Di Matteo, Mathieu Sebilo, Johan Yans

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The Palaeocene/Eocene boundary (P/EB) and the Palaeocene-Eocene Thermal Maximum (55.8Ma) are defined stratigraphically based on carbon isotope ratios of various materials. Here, the position of the P/EB is refined in the terrestrial-lacustrine and swampy Vasterival section (Upper Normandy coast, France) by using carbon isotopes measured on dispersed organic matter (δ 13C org). Moreover, nitrogen isotopes on dispersed organic matter (δ 15N org) are, for the first time in the Palaeogene record, associated with carbon isotope and lithological data to constrain palaeoclimatic and environmental changes around the P/EB in a terrestrial environment. Humid-dry fluctuations before and during this key interval in Earth history are suggested.

    Original languageEnglish
    Pages (from-to)114-122
    Number of pages9
    JournalTerra Nova
    Volume24
    Issue number2
    DOIs
    Publication statusPublished - 1 Apr 2012

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