Robert, F. and Epstein, S. (1980) Carbon, Hydrogen, and Nitrogen Isotopic Composition of the Renazzo and Orgueil Organic Components. Meteoritics, 15 (4). p. 355. ISSN 0026-1114. https://resolver.caltech.edu/CaltechAUTHORS:20140903-133313827
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Abstract
The concentration and isotopic composition were determined for carbon, nitrogen, and hydrogen extracted from bulk samples and acid (HF-HCl) residues of Orgueil and Renazzo meteorites. The samples were heated step-wise and the measured quantities of gasses given off at each step were analyzed mass spectrometically. The whole rock δD and δ^(15)N values are +930‰ and + 190‰ for Renazzo and + 170‰ and + 40‰ for Orgueil respectively. Hydrogen concentrations from the acid residues, shows a bimodal release pattern at temperatures between 400 and 1300 ºC and the average δD of hydrogen from the acid residues from Renazzo is + 2500‰ and from Orgueil is + 1100‰. The δD of the hydrogen released at the high temperature release mode is on the average of + 1500‰ for Orgueil and + 3100‰ for Renazzo. The low temperature-release-hydrogen has a δD value of+ 1000‰ for Orgueil and +2000‰ for Renazzo. These results imply that the hydrogen isotopic composition is not homogeneously distributed among the various compounds of the acid residues. The δ^(13)C of the carbon in the acid residues measured -20‰ for Renazzo and -5‰ for Orgueil. With our previous results on δD's acid residues of Murray and Murchison ( +600‰ and +800‰ respectively) we are able to calculate by mass balance an approximate isotopic composition of phyllosilicates in these four meteorites. The δD's of inorganic hydrogen are calculated to be~ -250‰ for Murray, Murchison, and Orgueil.
Item Type: | Article | ||||||
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Additional Information: | © 1980 Meteoritical Society. Provided by the NASA Astrophysics Data System. | ||||||
Issue or Number: | 4 | ||||||
Record Number: | CaltechAUTHORS:20140903-133313827 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140903-133313827 | ||||||
Official Citation: | Carbon, Hydrogen, and Nitrogen Isotopic Composition of the Renazzo and Orgueil Organic Components Robert, F.; Epstein, S. Meteoritics, Vol. 15, p.355 Publication Date: 12/1980 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 49199 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Ruth Sustaita | ||||||
Deposited On: | 03 Sep 2014 23:49 | ||||||
Last Modified: | 03 Oct 2019 07:11 |
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