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

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Cited articles

Alegret, L. and Thomas, E.: Food supply to the seafloor in the Pacific Ocean after the Cretaceous/Paleogene boundary event, Mar. Micropaleontol., 73, 105–116,, 2009. 
Alegret, L., Thomas, E., and Lohmann, K. C.: End-Cretaceous marine mass extinction not caused by productivity collapse, P. Natl. Acad. Sci. USA, 109, 728–732,, 2012. 
Alegret, L., Arreguín-Rodríguez, G. J., Trasviña-Moreno, C. A., and Thomas, E.: Turnover and stability in the deep sea: Benthic foraminifera as tracers of Paleogene global change, Global Planet. Change, 196, 103372,, 2020. 
Barnet, J. S., Littler, K., Kroon, D., Leng, M. J., Westerhold, T., Röhl, U., and Zachos, J. C.: A new high-resolution chronology for the Late Maastrichtian warming event: Establishing robust temporal links with the onset of Deccan volcanism, Geology, 46, 147–150, 2018. 
Barnet, J. S., Littler, K., Westerhold, T., Kroon, D., Leng, M. J., Bailey, I., Röhl, U., and Zachos, J. C.: A high-fidelity benthic stable isotope record of Late Cretaceous–Early Eocene climate change and carbon-cycling, Paleoceanography and Paleoclimatology, 34, 672–691, 2019. 
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.