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Science 28 April 1995:
Vol. 268. no. 5210, pp. 540 - 542
DOI: 10.1126/science.268.5210.540
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Articles

Discovery of an Unmelted H-Chondrite Inclusion in an Iron Meteorite

Ignacio Casanova 1, Thomas Graf 2, and Kurt Marti 2

1 Department Geoquimica-Grup Planetologia, Facultat de Geologia, Universitat de Barcelona, 08071 Barcelona, Spain
2 Department of Chemistry, University of California at San Diego, La Jolla, CA 92093-0317, USA.

The link between H chondrites and silicate inclusions in group IIE iron meteorites has long been suspected, but direct evidence for a common parentage has remained elusive. The discovery of an unmelted chondritic inclusion in the Techado iron meteorite sheds light on the genetic relation between these two groups, providing clues on the origin of chondritic materials as inclusions in iron meteorites. It is proposed that the complex IIE iron meteorite breccias formed by collisions with several different bodies, followed by deep burial of metal and silicate fragments in the asteroidal megaregolith.

Submitted on October 18, 1994
Accepted on February 27, 1995


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Science. ISSN 0036-8075 (print), 1095-9203 (online)