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Presolar (?) Corundum in the Orgueil Meteorite

Huss, G. R. and Hutcheon, I. D. and Wasserburg, G. J. and Stone, J. (1992) Presolar (?) Corundum in the Orgueil Meteorite. In: Lunar and planetary science XXIII. Lunar and Planetary Institute , Houston, TX, pp. 563-564.

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The discovery in chondritic meteorites of diamond, SiC, and poorly crystallized graphite that formed around other stars demonstrated conclusively that presolar dust survived the formation of the solar system to be incorporated into meteorites. The presolar nature of these grains is shown by the highly unusual isotopic compositions of their constituent elements. To date, all recognized types of presolar grains have been carbon rich and apparently formed around carbon stars, those with C/O greater than 1. The discovery of the first oxygen-rich grain with isotopic characteristics consistent with a presolar origin is reported. Oxygen-rich grains presumably form only around stars with C/O less than 1.

Item Type:Book Section
Related URLs:
URLURL TypeDescription Technical Reports Server (NTRS)
Huss, G. R.0000-0003-4281-7839
Wasserburg, G. J.0000-0002-7957-8029
Additional Information:© 1992 Lunar and Planetary Institute. Supported by NASA, NAG 9-43.
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Other Numbering System NameOther Numbering System ID
Caltech Division of Geological and Planetary Sciences5097
Lunatic Asylum Lab759
Record Number:CaltechAUTHORS:20150331-082201029
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56229
Deposited By: Tony Diaz
Deposited On:31 Mar 2015 16:05
Last Modified:09 Mar 2020 13:19

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