Articles | Volume 18, issue 12
Research article
16 Dec 2022
Research article |  | 16 Dec 2022

Precessional pacing of tropical ocean carbon export during the Late Cretaceous

Ji-Eun Kim, Thomas Westerhold, Laia Alegret, Anna Joy Drury, Ursula Röhl, and Elizabeth M. Griffith

Data sets

Maastrichtian composite bulk carbonate stable isotopes, XRF scanning, biogenic barium, and benthic foraminiferal records from Shatsky Rise, ODP Sites 1209 and 1210 J.-E. Kim, T. Westerhold, E. M. Griffith, L. Alegret, A. Drury, and U. Röhl

Short summary
This study attempts to gain a better understanding of the marine biological carbon pump and ecosystem functioning under warmer-than-today conditions. Our records from marine sediments show the Pacific tropical marine biological carbon pump was driven by variations in seasonal insolation in the tropics during the Late Cretaceous and may play a key role in modulating climate and the carbon cycle globally in the future.