Temperature Dependence of Carbon Isotope Composition in Marine Plankton and Sediments

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Science  09 Apr 1965:
Vol. 148, Issue 3667, pp. 235-237
DOI: 10.1126/science.148.3667.235


Samples of marine plankton collected in high-latitude areas of the South Atlantic where surface water temperatures are near 0°C show a carbon-12 enrichment of 6 per mill relative to samples collected where temperatures are about 25°C. The organic carbon in sediments in the Drake Passage and Argentine Basin also shows a carbon-12 enrichment relative to warmer areas.

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