Oxygen and Carbon Isotopes from Calcareous Nannofossils as Paleoceanographic Indicators

Oxygen-18 and carbon-13 analyses of well-preserved calcareous nannofossils have been compared with those of foraminifera contained in Cenozoic cores collected in the Southern Ocean during the Deep Sea Drilling Project. The results indicate that calcareous nannofossils deposit calcium carbonate at or...

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Bibliographic Details
Published in:Science
Main Authors: Margolis, Stanley V., Kroopnick, Peter M., Goodney, David E., Dudley, Walter C., Mahoney, Maureen E.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1975
Subjects:
Southern Ocean
Online Access:http://dx.doi.org/10.1126/science.189.4202.555
https://www.science.org/doi/pdf/10.1126/science.189.4202.555
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Summary:Oxygen-18 and carbon-13 analyses of well-preserved calcareous nannofossils have been compared with those of foraminifera contained in Cenozoic cores collected in the Southern Ocean during the Deep Sea Drilling Project. The results indicate that calcareous nannofossils deposit calcium carbonate at or near equilibrium with oceanic surface waters and that they can be used as paleotemperature indicators.

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