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Evidence for global cooling in the Late Cretaceous

Author

Listed:
  • Christian Linnert

    (University College London)

  • Stuart A. Robinson

    (University of Oxford)

  • Jackie A. Lees

    (University College London)

  • Paul R. Bown

    (University College London)

  • Irene Pérez-Rodríguez

    (Instituto de Investigación en Ciencias Ambientales (IUCA), Universidad de Zaragoza)

  • Maria Rose Petrizzo

    (Università degli Studi di Milano)

  • Francesca Falzoni

    (Università degli Studi di Milano)

  • Kate Littler

    (University College London)

  • José Antonio Arz

    (Instituto de Investigación en Ciencias Ambientales (IUCA), Universidad de Zaragoza)

  • Ernest E. Russell

    (Mississippi State University)

Abstract

The Late Cretaceous ‘greenhouse’ world witnessed a transition from one of the warmest climates of the past 140 million years to cooler conditions, yet still without significant continental ice. Low-latitude sea surface temperature (SST) records are a vital piece of evidence required to unravel the cause of Late Cretaceous cooling, but high-quality data remain illusive. Here, using an organic geochemical palaeothermometer (TEX86), we present a record of SSTs for the Campanian–Maastrichtian interval (~83–66 Ma) from hemipelagic sediments deposited on the western North Atlantic shelf. Our record reveals that the North Atlantic at 35 °N was relatively warm in the earliest Campanian, with maximum SSTs of ~35 °C, but experienced significant cooling (~7 °C) after this to

Suggested Citation

  • Christian Linnert & Stuart A. Robinson & Jackie A. Lees & Paul R. Bown & Irene Pérez-Rodríguez & Maria Rose Petrizzo & Francesca Falzoni & Kate Littler & José Antonio Arz & Ernest E. Russell, 2014. "Evidence for global cooling in the Late Cretaceous," Nature Communications, Nature, vol. 5(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5194
    DOI: 10.1038/ncomms5194
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