Climate of the Past
Climate of the Past
CP
Articles | Volume 19, issue 9
Articles | Volume 19, issue 9
https://doi.org/10.5194/cp-19-1743-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-19-1743-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 9
Research article
 | 
05 Sep 2023
Research article |  | 05 Sep 2023

Carbon isotope chemostratigraphy, geochemistry, and biostratigraphy of the Paleocene–Eocene Thermal Maximum, deepwater Wilcox Group, Gulf of Mexico (USA)

Glenn R. Sharman, Eugene Szymanski, Rebecca A. Hackworth, Alicia C. M. Kahn, Lawrence A. Febo, Jordan Oefinger, and Gunnar M. Gregory

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Latest update: 16 May 2024
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Short summary
This study examines deepwater deposits within the Gulf of Mexico (USA) that record an episode of pronounced global warming that occurred ∼56 million years ago. We show that the supply of sand and silt into the basin shut off after a delay of about 30 000 years, followed by an influx of clay derived from deep erosion of central North America. Our results are consistent with other studies that indicate rapid sea-level rise, ocean acidification, and decreased oxygen during this warming event
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