Articles | Volume 15, issue 15
https://doi.org/10.5194/bg-15-4759-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-4759-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Technical note: A refinement of coccolith separation methods: measuring the sinking characteristics of coccoliths
Hongrui Zhang
State Key Laboratory of Marine Geology, Tongji University, Shanghai,
200092, China
Geological Institute, Department of Earth Science, Sonneggstrasse 5,
ETH, 8092, Zurich, Switzerland
Heather Stoll
Geological Institute, Department of Earth Science, Sonneggstrasse 5,
ETH, 8092, Zurich, Switzerland
Clara Bolton
Aix-Marseille Université, CNRS, IRD, Coll. de France, CEREGE, Aix-en-Provence, France
Xiaobo Jin
State Key Laboratory of Marine Geology, Tongji University, Shanghai,
200092, China
Chuanlian Liu
CORRESPONDING AUTHOR
State Key Laboratory of Marine Geology, Tongji University, Shanghai,
200092, China
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- Two Production Stages of Coccolithophores in Winter as Revealed by Sediment Traps in the Northern South China Sea X. Jin et al. 10.1029/2019JG005070
- Technical note: Accelerate coccolith size separation via repeated centrifugation H. Zhang et al. 10.5194/bg-18-1909-2021
- Shallow Calcium Carbonate Cycling in the North Pacific Ocean A. Subhas et al. 10.1029/2022GB007388
- Coccoliths as Recorders of Paleoceanography and Paleoclimate over the Past 66 Million Years C. Bolton & H. Stoll 10.1146/annurev-earth-040623-103211
- Carbon Isotopic Fractionation of Alkenones and Gephyrocapsa Coccoliths Over the Late Quaternary (Marine Isotope Stages 12–9) Glacial‐Interglacial Cycles at the Western Tropical Atlantic A. González‐Lanchas et al. 10.1029/2020PA004175
- Differential impacts of pH on growth, physiology, and elemental stoichiometry across three coccolithophore species N. Chauhan & R. Rickaby 10.1002/lno.12738
- Carbonate dissolution and environmental parameters govern coccolith vs. alkenone abundances in surface sediments from the northwest North Atlantic N. Marshall et al. 10.1016/j.marmicro.2021.102032
- Constraining CaCO3 Export and Dissolution With an Ocean Alkalinity Inverse Model H. Liang et al. 10.1029/2022GB007535
- Adsorptive exchange of coccolith biominerals facilitates viral infection C. Johns et al. 10.1126/sciadv.adc8728
- Global Trends in the Distribution of Biogenic Minerals in the Ocean A. Subhas et al. 10.1029/2022JC019470
- Heterochrony of Mid-Brunhes coccolithophore bloom reveals multi-processes controlling ocean nutrient H. Zhang et al. 10.1016/j.quascirev.2025.109226
- Eocene emergence of highly calcifying coccolithophores despite declining atmospheric CO2 L. Claxton et al. 10.1038/s41561-022-01006-0
12 citations as recorded by crossref.
- Multispecies expression of coccolithophore vital effects with changing CO2 concentrations and pH in the laboratory with insights for reconstructing CO2 levels in geological history G. Le Guevel et al. 10.5194/bg-22-2287-2025
- Two Production Stages of Coccolithophores in Winter as Revealed by Sediment Traps in the Northern South China Sea X. Jin et al. 10.1029/2019JG005070
- Technical note: Accelerate coccolith size separation via repeated centrifugation H. Zhang et al. 10.5194/bg-18-1909-2021
- Shallow Calcium Carbonate Cycling in the North Pacific Ocean A. Subhas et al. 10.1029/2022GB007388
- Coccoliths as Recorders of Paleoceanography and Paleoclimate over the Past 66 Million Years C. Bolton & H. Stoll 10.1146/annurev-earth-040623-103211
- Carbon Isotopic Fractionation of Alkenones and Gephyrocapsa Coccoliths Over the Late Quaternary (Marine Isotope Stages 12–9) Glacial‐Interglacial Cycles at the Western Tropical Atlantic A. González‐Lanchas et al. 10.1029/2020PA004175
- Differential impacts of pH on growth, physiology, and elemental stoichiometry across three coccolithophore species N. Chauhan & R. Rickaby 10.1002/lno.12738
- Carbonate dissolution and environmental parameters govern coccolith vs. alkenone abundances in surface sediments from the northwest North Atlantic N. Marshall et al. 10.1016/j.marmicro.2021.102032
- Constraining CaCO3 Export and Dissolution With an Ocean Alkalinity Inverse Model H. Liang et al. 10.1029/2022GB007535
- Adsorptive exchange of coccolith biominerals facilitates viral infection C. Johns et al. 10.1126/sciadv.adc8728
- Global Trends in the Distribution of Biogenic Minerals in the Ocean A. Subhas et al. 10.1029/2022JC019470
- Heterochrony of Mid-Brunhes coccolithophore bloom reveals multi-processes controlling ocean nutrient H. Zhang et al. 10.1016/j.quascirev.2025.109226
1 citations as recorded by crossref.
Latest update: 28 Jun 2025
Short summary
The sinking speeds of coccoliths are relevant for laboratory methods to separate coccoliths for geochemical analysis. However, in the absence of estimates of coccolith settling velocity, previous implementations have depended mainly on time-consuming method development by trial and error. In this study, the sinking velocities of cocooliths were carefully measured for the first time. We also provide an estimation of coccolith sinking velocity by shape, which will make coccolith separation easier.
The sinking speeds of coccoliths are relevant for laboratory methods to separate coccoliths for...
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