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

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

doi:https://doi.org/10.5194/cp-19-1743-2023

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

Supplement

https://doi.org/10.5194/cp-19-1743-2023-supplement

Data sets

Carbon-isotope, geochemical, and biostratigraphic data from the Anchor 3 well, Green Canyon protraction area, Gulf of Mexico G. R. Sharman, E. Szymanski, R. A. Hackworth, A. C. M. Kahn, L. A. Febo, J. Oefinger, and G. M. Gregory https://doi.org/10.5281/zenodo.7291552

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