Nature and origin of variations in pelagic carbonate production in the tropical ocean since the mid-Miocene (ODP Site 927)

Cornuault, Pauline; Westerhold, Thomas; Pälike, Heiko; Bickert, Torsten; Baumann, Karl-Heinz; Kucera, Michal

doi:https://doi.org/10.5194/bg-20-597-2023

Articles | Volume 20, issue 3

https://doi.org/10.5194/bg-20-597-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-20-597-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 3

Research article

|

06 Feb 2023

Research article |

| 06 Feb 2023

Nature and origin of variations in pelagic carbonate production in the tropical ocean since the mid-Miocene (ODP Site 927)

Pauline Cornuault, Thomas Westerhold, Heiko Pälike, Torsten Bickert, Karl-Heinz Baumann, and Michal Kucera

Supplement

https://doi.org/10.5194/bg-20-597-2023-supplement

Data sets

Carbonate accumulation rate calculation derived from previously published carbonate content data, for the five sites of the Leg 154, Ceara Rise, tropical Atlantic from 0 to 16 Ma. P. Cornuault, T. Westerhold, H. Pälike, T. Bickert, K.-H. Baumann, and M. Kucera https://doi.org/10.1594/PANGAEA.945848

Magnetic susceptibility of ODP Site 154-927, Pliocene Warm Period (3095 to 3307 ka) interval. P. Cornuault, T. Westerhold, H. Pälike, T. Bickert, K.-H. Baumann, and M. Kucera https://doi.org/10.1594/PANGAEA.945773

Oxygen and carbon stable isotopes ratios from benthic foraminifera from Miocene Climatic Optimum (MCO) (15589 to 15964 ka) time interval, ODP Hole 154-927A, Ceara Rise, tropical Atlantic Ocean. P. Cornuault, T. Westerhold, H. Pälike, T. Bickert, K.-H. Baumann, and M. Kucera https://doi.org/10.1594/PANGAEA.945812

Carbonate content analyses and accumulation rate data for the marine isotopic stage (MIS) 5, MIS 9, MIS KM5 and MCO, ODP Site 154-927, Ceara Rise, tropical Atlantic Ocean. P. Cornuault, T. Westerhold, H. Pälike, T. Bickert, K.-H. Baumann, and M. Kucera https://doi.org/10.1594/PANGAEA.945789

Splice composition of ODP Site 154-927, 110.43 mcd to 119.79 mcd interval, Ceara Rise, tropical Atlantic. P. Cornuault, T. Westerhold, H. Pälike, T. Bickert, K.-H. Baumann, and M. Kucera https://doi.org/10.1594/PANGAEA.945707

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Short summary

We generated high-resolution records of carbonate accumulation rate from the Miocene to the Quaternary in the tropical Atlantic Ocean to characterize the variability in pelagic carbonate production during warm climates. It follows orbital cycles, responding to local changes in tropical conditions, as well as to long-term shifts in climate and ocean chemistry. These changes were sufficiently large to play a role in the carbon cycle and global climate evolution.