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Science 11 January 1974:
Vol. 183. no. 4120, pp. 73 - 74
DOI: 10.1126/science.183.4120.73
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Articles

Gas-Rich Meteorites: Possible Evidence for Origin on a Regolith

D. Macdougall 1, R. S. Rajan 1, and P. B. Price 1

1 Department of Physics, University of California. Berkeley 94720

The asymmetry of irradiation features of grains in the Kapoeta and Fayetteville meteorites suggests irradiation on a regolith before meteorite formation. Chondrules and broken grains require approximately 104 years of irradiation time between formation or fracturing and compaction into the meteorite. Shock erasure of tracks from irradiated Kapoeta feldspars requires a severe shock event during or after meteorite formation.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Electron Microscopy of Irradiation Effects in Space.
M. Maurette and P. B. Price (1975)
Science 187, 121-129
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Science. ISSN 0036-8075 (print), 1095-9203 (online)