Biogeosciences
Biogeosciences
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Articles | Volume 20, issue 9
Articles | Volume 20, issue 9
https://doi.org/10.5194/bg-20-1725-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-1725-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 9
Research article
 | 
09 May 2023
Research article |  | 09 May 2023

Fossil coccolith morphological attributes as a new proxy for deep ocean carbonate chemistry

Amanda Gerotto, Hongrui Zhang, Renata Hanae Nagai, Heather M. Stoll, Rubens César Lopes Figueira, Chuanlian Liu, and Iván Hernández-Almeida

Data sets

Morphological measurements of coccoliths from surface samples of South China Sea A. Gerotto, H. Zhang, R. H. Nagai, H. M. Stoll, R. C. L. Figueira, L. Chuanlian, and I. Hernández-Almeida https://doi.org/10.5281/zenodo.7271441

Morphological measurements of coccoliths from surface samples of R/V SONNE cruise SO95 A. Gerotto, H. Zhang, R. H. Nagai, H. M. Stoll, R. C. L. Figueira, L. Chuanlian, and I. Hernández-Almeida https://doi.org/10.1594/PANGAEA.954015

Coccolith dissolution experiment from one sample of ODP Hole 130-807A A. Gerotto, H. Zhang, R. H. Nagai, H. M. Stoll, R. C. L. Figueira, L. Chuanlian, and I. Hernández-Almeida https://doi.org/10.1594/PANGAEA.954016

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Short summary
Based on the analysis of the response of coccolithophores’ morphological attributes in a laboratory dissolution experiment and surface sediment samples from the South China Sea, we proposed that the thickness shape (ks) factor of fossil coccoliths together with the normalized ks variation, which is the ratio of the standard deviation of ks (σ) over the mean ks (σ/ks), is a robust and novel proxy to reconstruct past changes in deep ocean carbon chemistry.
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