Science · 1965 · 342 citations · 3 references
Natural SciencesEarth SciencesMarine SciencesMarine BiogeochemistryMarine EcologyMarine SedimentologyIsotope BiogeochemistryIsotope GeochemistrySea Surface TemperatureStable Isotope AnalysisCarbon Isotope AnalysisCarbon Isotope BiogeochemistryCarbon Isotope GeochemistryCarbon Isotope StudiesCarbon Isotopic FractionationHydrogen Isotope CompositionTemperature Dependence
Samples of marine plankton collected in high-latitude areas of the South Atlantic where surface water temperatures are near 0 degrees C show a carbon-12 enrichment of 6 per mill relative to samples collected where temperatures are about 25 degrees 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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Carbon isotope fractionation during photosynthesis
R. Park, Samuel Epstein · Geochimica et Cosmochimica Acta · 1960 · 568 citations