Articles | Volume 12, issue 6
Biogeosciences, 12, 1733–1752, 2015
https://doi.org/10.5194/bg-12-1733-2015
Biogeosciences, 12, 1733–1752, 2015
https://doi.org/10.5194/bg-12-1733-2015
Research article
17 Mar 2015
Research article | 17 Mar 2015

Oxygen and carbon isotope composition of modern planktic foraminifera and near-surface waters in the Fram Strait (Arctic Ocean) – a case study

T. Pados et al.

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Short summary
Fossil planktic foraminifera and their geochemical composition are commonly used proxies in palaeoceanography. Our study with living specimens revealed that in the Fram Strait both Neogloboquadrina pachyderma and Turborotalita quinqueloba from the water column have lower δ18O and δ13C values than inorganically precipitated calcite/fossil tests from the sediment surface. These offsets indicate biological influence during calcification and a change of water column properties in the recent past.
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