Abstract
The distribution of the stable carbon isotopes in aquatic organisms and sediments reveals that plants which derive their carbon from compounds dissolved in water are enriched in 13C with respect to plants which derive their carbon from atmospheric CO 2. The organic material of sediments reflect the isotopic composition of those organisms which contribute to the organic detritus. Sediments from south Texas bays, the Bahama banks and British Honduras reef were studied. Modifications to a high precision isotope ratio mass spectrometer are described which make it possible to assay either CO 2 or SO 2 samples interchangeably without deleterious memory effects.
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More From: International Journal of Mass Spectrometry and Ion Physics
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