Articles | Volume 23, issue 3
https://doi.org/10.5194/bg-23-1065-2026
https://doi.org/10.5194/bg-23-1065-2026
Research article
 | 
05 Feb 2026
Research article |  | 05 Feb 2026

Monthly element ∕ Ca trends and inter chamber variability in two planktic Foraminifera species: Globigerinoides ruber albus and Turborotalita clarkei from a hypersaline oligotrophic sea

Noy Levy, Adi Torfstein, Ralf Schiebel, Natalie Chernihovsky, Klaus Peter Jochum, Ulrike Weis, Brigitte Stoll, and Gerald H. Haug

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Cited articles

Allen, K. A., Hönisch, B., Eggins, S. M., Yu, J., Spero, H. J., and Elderfield, H.: Controls on boron incorporation in cultured tests of the planktic foraminifer Orbulina universa, Earth Planet. Sc. Lett., 309, 291–301, 2011. 
Allen, K. A., Hönisch, B., Eggins, S. M., and Rosenthal, Y.: Environmental controls on B / Ca in calcite tests of the tropical planktic foraminifer species Globigerinoides ruber and Globigerinoides sacculifer, Earth Planet. Sc. Lett., 351, 270–280, 2012. 
Allen, K. A., Hönisch, B., Eggins, S. M., Haynes, L. L., Rosenthal, Y., and Yu, J.: Trace element proxies for surface ocean conditions: A synthesis of culture calibrations with planktic foraminifera, Geochim. Cosmochim. Ac., 193, 197–221, 2016. 
Amaglio, G., Petrizzo, M. R., Wolfgring, E., Holbourn, A., and Kuhnt, W.: Paleoceanographic changes across OAE 2 inferred from resilient foraminifera and XRF data at southern high latitudes (IODP Sites U1513 and U1516, Mentelle Basin, SW Australia), Palaeogeogr. Palaeocl., 657, 112578, https://doi.org/10.1016/j.palaeo.2024.112578, 2025. 
Anderson, R. F., Bacon, M. P., and Brewer, P. G.: Removal of 230Th and 231Pa from the open ocean, Earth Planet. Sc. Lett., 62, 7–23, 1983. 
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Short summary
We investigated the shell chemistry of planktic organisms called foraminifera to understand how conditions in the Gulf of Aqaba (north of Red Sea), a relative warm and saline sea, are recorded. We analyzed shell parts, called chambers, and we found that shell chemistry varies significantly between both chambers and foraminifera species. These findings help better understand how deposited shells can be used to reconstruct past ocean temperatures and other conditions.
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