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Published February 1985 | Published
Journal Article Open

A search for presolar organic matter in meteorite

Abstract

The D/H ratios and the ^(13)C/^(12)C ratios of acid-insoluble organic matter of 4 meteorites, Ochansk (H4), Plainview (H5), Gladstone (H6) and Odessa (IA), were measured, δD values for hydrogen extracted by stepwise combustion were negative, down to −280‰. δ^(13)C values were also negative except in the case of the carbon coming off at the highest temperature steps for Plainview and Odessa meteorites. The concentrations of ^(13)C-rich carbon were 3-5 orders of magnitude smaller than those found in Murchison meteorite, suggesting that relic grains of stellar condensates were mostly destroyed in the meteorites examined.

Additional Information

© 1985 American Geophysical Union. Received November 5, 1984; accepted November 28, 1984. This work was supported by NASA grant NGL 05-002-190. Contribution 4154 of the Division of Geological and Planetary Sciences.

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Created:
August 19, 2023
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