Articles | Volume 18, issue 2
Biogeosciences, 18, 423–439, 2021
Biogeosciences, 18, 423–439, 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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Cited articles

Anand, P., Elderfield, H., and Conte, M. H.: Calibration of Mg∕Ca thermometry in planktonic foraminifera from a sediment trap time series, Paleoceanography 18, 1050,, 2003. 
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Bemis, B. E., Spero, H. J., Bijma, J., and Lea, D. W.: Reevaluation of the oxygen isotopic composition of planktonic foraminifera: Experimental results and revised paleotemperature equations, Paleoceanography, 13, 150–160,, 1998. 
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.
Final-revised paper