Fast and pervasive diagenetic isotope exchange in foraminifera tests is species-dependent

Deyanira Cisneros-Lazaro; Arthur Adams; Jinming Guo; Sylvain Bernard; Lukas P. Baumgartner; Damien Daval; Alain Baronnet; Olivier Grauby; Torsten Vennemann; Jarosław Stolarski; Stéphane Escrig; Anders Meibom

doi:10.1038/s41467-021-27782-8

Nature Communications (Jan 2022)

Fast and pervasive diagenetic isotope exchange in foraminifera tests is species-dependent

Deyanira Cisneros-Lazaro,
Arthur Adams,
Jinming Guo,
Sylvain Bernard,
Lukas P. Baumgartner,
Damien Daval,
Alain Baronnet,
Olivier Grauby,
Torsten Vennemann,
Jarosław Stolarski,
Stéphane Escrig,
Anders Meibom

Affiliations

Deyanira Cisneros-Lazaro: Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Arthur Adams: Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Jinming Guo: Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Sylvain Bernard: Museum National d’Histoire Naturelle, Sorbonne Université
Lukas P. Baumgartner: Center for Advanced Surface Analysis, Institute of Earth Science, University of Lausanne
Damien Daval: ISTerre, Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR
Alain Baronnet: CNRS, CINaM, Aix-Marseille Université
Olivier Grauby: CNRS, CINaM, Aix-Marseille Université
Torsten Vennemann: Institute of Earth Surface Dynamics, University of Lausanne
Jarosław Stolarski: Institute of Paleobiology, Polish Academy of Sciences
Stéphane Escrig: Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Anders Meibom: Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)

DOI: https://doi.org/10.1038/s41467-021-27782-8
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 11

Abstract

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Paleoclimate reconstructions commonly use oxygen isotope compositions from fossil foraminifera tests as proxies. Here, the authors show that these tests exchange O-isotopes with surrounding fluids, with implications for paleotemperature records.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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