Carbon-13 fractionation between aragonite and calcite
Autor: | Robert N. Clayton, Michael Rubinson |
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Rok vydání: | 1969 |
Předmět: | |
Zdroj: | Geochimica et Cosmochimica Acta. 33:997-1002 |
ISSN: | 0016-7037 |
DOI: | 10.1016/0016-7037(69)90109-4 |
Popis: | Aragonite and calcite were precipitated from bicarbonate solutions by slow removal of carbon dioxide at 25°C. Carbon isotope fractionation factors (expressed as 1000 lnα) are: calcite-bicarbonate ion 0.9 ± 0.2; aragonite-bicarbonate ion 2.7 ± 0.2; aragonite-calcite 1.8 ± 0.2. Theoretical calculation of the aragonite-calcite fractionation gives 0.9. |
Databáze: | OpenAIRE |
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