O'Neil, James R. and Epstein, Samuel (1966) Oxygen Isotope Fractionation in the System Dolomite-Calcite-Carbon Dioxide. Science, 152 (3719). pp. 198-201. ISSN 0036-8075. doi:10.1126/science.152.3719.198. https://resolver.caltech.edu/CaltechAUTHORS:20151209-110410805
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Abstract
Oxygen isotopes were equilibrated between carbon dioxide and calcite at four temperatures in the range 350° to 610°C and between carbon dioxide and dolomite at 350° and 400°C. Carbon of unusual isotopic composition was used as a tracer to demonstrate the nature and extent of the exchange process. Extrapolation of these data at lower temperatures indicates that at 25°C dolomite is enriched in oxygen-18 by 6.8 per mil with respect to calcite. This result indicates that those natural dolomite-calcite assemblages which show very small fractionations were not formed in isotopic equilibrium.
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Additional Information: | © 1966 American Association for the Advancement of Science. Received 7 February 1966. Supported by NSF grant No. GP 2254 and AEC contract No. AT (04-3)-427. Contribution No. 1396 of California Institute of Technology, Pasadena. | ||||||||||||
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Issue or Number: | 3719 | ||||||||||||
DOI: | 10.1126/science.152.3719.198 | ||||||||||||
Record Number: | CaltechAUTHORS:20151209-110410805 | ||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20151209-110410805 | ||||||||||||
Official Citation: | Oxygen Isotope Fractionation in the System Dolomite-Calcite-Carbon Dioxide James R. O'Neil and Samuel Epstein Science 8 April 1966: 152 (3719), 198-201. [DOI:10.1126/science.152.3719.198] | ||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
ID Code: | 62740 | ||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||
Deposited By: | Tony Diaz | ||||||||||||
Deposited On: | 09 Dec 2015 19:48 | ||||||||||||
Last Modified: | 10 Nov 2021 23:06 |
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