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


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on cp-2022-86', Anonymous Referee #1, 01 Feb 2023
  • RC2: 'Comment on cp-2022-86', Anonymous Referee #2, 22 Feb 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish as is (23 Jun 2023) by Arne Winguth
AR by Glenn Sharman on behalf of the Authors (26 Jun 2023)  Manuscript 
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