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Isotopic composition of hydrogen in insoluble organic matter from cherts

Krishnamurthy, R. V. and Epstein, S. (1991) Isotopic composition of hydrogen in insoluble organic matter from cherts. Geochimica et Cosmochimica Acta, 55 (10). pp. 2985-2988. ISSN 0016-7037. doi:10.1016/0016-7037(91)90464-G.

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Robert (1989) reported the presence of unusually enriched hydrogen in the insoluble HF-HCl residue extracted from two chert samples of Eocene and Pliocene ages. Since the presence of heavy hydrogen might be due to the incorporation of extraterrestrial materials, we desired to reexamine the same samples to isolate the D-rich components. Our experiments did not reveal any D-rich components, but the hydrogen isotope composition of the insoluble residue of the two chert samples was well within the range expected for terrestrial organic matter. We also describe a protocol that needs to be followed in the hydrogen isotope analysis of any insoluble organic matter.

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Additional Information:© 1991 Pergamon Press. Received December 26, 1990; accepted in revised form July 3, 1991. This work was supported by NSF grant EAR-8504096. We thank E. C. Perry and S. A. Macko for useful comments on the manuscript. This is publication 4907 of the Division of Geological and Planetary Sciences.
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Caltech Division of Geological and Planetary Sciences4907
Issue or Number:10
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Official Citation:R.V. Krishnamurthy, S. Epstein, Isotopic composition of hydrogen in insoluble organic matter from cherts, Geochimica et Cosmochimica Acta, Volume 55, Issue 10, October 1991, Pages 2985-2988, ISSN 0016-7037,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39021
Deposited By: Tony Diaz
Deposited On:21 Jun 2013 17:51
Last Modified:09 Nov 2021 23:41

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