Articles | Volume 18, issue 2
Biogeosciences, 18, 423–439, 2021
https://doi.org/10.5194/bg-18-423-2021
Biogeosciences, 18, 423–439, 2021
https://doi.org/10.5194/bg-18-423-2021
Research article
19 Jan 2021
Research article | 19 Jan 2021

Mg∕Ca, Sr∕Ca and stable isotopes from the planktonic foraminifera T. sacculifer: testing a multi-proxy approach for inferring paleotemperature and paleosalinity

Delphine Dissard et al.

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Short summary
Results from a data set acquired from living foraminifera T. sacculifer collected from surface waters are presented, allowing us to establish a new Mg/Ca–Sr/Ca–temperature equation improving temperature reconstructions. When combining equations, δ18Ow can be reconstructed with a precision of ± 0.5 ‰, while successive reconstructions involving Mg/Ca and δ18Oc preclude salinity reconstruction with a precision better than ± 1.69. A new direct linear fit to reconstruct salinity could be established.
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