Articles | Volume 20, issue 6
https://doi.org/10.5194/cp-20-1327-2024
https://doi.org/10.5194/cp-20-1327-2024
Research article
 | 
14 Jun 2024
Research article |  | 14 Jun 2024

Late Eocene to early Oligocene productivity events in the proto-Southern Ocean and correlation to climate change

Gabrielle Rodrigues de Faria, David Lazarus, Johan Renaudie, Jessica Stammeier, Volkan Özen, and Ulrich Struck

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Cited articles

Anagnostou, E., John, E. H., Edgar, K. M., Foster, G. L., Ridgwell, A., Inglis, G. N., Pancost, R. D., Lunt, D. J., and Pearson, P. N.: Changing atmospheric CO2 concentration was the primary driver of early Cenozoic climate, Nature, 533, 380–384, https://doi.org/10.1038/nature17423, 2016. 
Anagnostou, E., John, E. H., Babila, T. L., Sexton, P. F., Ridgwell, A., Lunt, D. J., Pearson, P. N., Chalk, T. B., Pancost, R. D. and Foster, G. L.: Proxy evidence for state-dependence of climate sensitivity in the Eocene greenhouse, Nat. Commun., 11, 4436, https://doi.org/10.1038/s41467-020-17887-x, 2020. 
Anderson, J. B., Warny, S., R. A. Askin, J. S. Wellner, S. M. Bohaty, A. E. Kirshner, D. N. Livsey, A. R. Simms, T. R. Smith, W. Ehrmann, L. A. Lawver, D. Barbeau, S. W. Wise, D. K. Kulhanek, F. M. Weaver, and Majewski, W..: Progressive Cenozoic cooling and the demise of Antarctica's last refugium, P. Natl. Acad. Sci. USA, 108, 11356–11360, https://doi.org/10.1073/pnas.1014885108, 2011.  
Anderson, L. D. and Delaney, M. L.: Middle Eocene to early Oligocene paleoceanography from Agulhas Ridge, Southern Ocean (Ocean Drilling Program Leg 177, Site 1090), Paleoceanography and Paleoclimatology, 20, 1, https://doi.org/10.1029/2004PA001043, 2005. 
Archer, D., Winguth, A., Lea, D., and Mahowald, N.: What caused the glacial/interglacial atmospheric pCO2 cycles?, Rev. Geophys., 38, 159–189, https://doi.org/10.1029/1999RG000066, 2000. 
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Export productivity is part of the global carbon cycle, influencing the climate system via biological pump. About 34 million years ago, the Earth's climate experienced a climate transition from a greenhouse state to an icehouse state with the onset of ice sheets in Antarctica. Our study shows important productivity events in the Southern Ocean preceding this climatic shift. Our findings strongly indicate that the biological pump potentially played an important role in that past climate change.
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