Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published October 1991 | public
Journal Article

Isotopic composition of hydrogen in insoluble organic matter from cherts

Abstract

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.

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.

Additional details

Created:
August 20, 2023
Modified:
October 24, 2023