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Science 16 August 1968:
Vol. 161. no. 3842, pp. 684 - 687
DOI: 10.1126/science.161.3842.684
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Articles

Potassium-Feldspar Phenocrysts in the Surface of Colomera, and Iron Meteorite

G. J. Wasserburg 1, H. G. Sanz 1, and A. E. Bence 1

1 Charles Arms Laboratory, Division of Geological Sciences, California Institute of Technology, Pasadena

Silicate aggregates, including large single crystals of potassium feldspar as long as 11 centimeters and sodium feldspar, are embeded in the surface of the medium octahedrite Colomera. Silicate nodules in the interior appear to be much smaller (about 0.3 centimeter). Glass nodules are abundant both on the external surface and in the interior. These observations are evidence that some iron meteorites formed as segregations within a silicate matrix and did not originate in a metallic core.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Discovery of an Unmelted H-Chondrite Inclusion in an Iron Meteorite.
I. Casanova, I. Casanova, T. Graf, and K. Marti (1995)
Science 268, 540-542
   Abstract »    PDF »
Potassium Feldspar in Weekeroo Station, Kodaikanal, and Colomera Iron Meteorites.
T. E. Bunch, T. E. Bunch, and E. Olsen (1968)
Science 162, 1507-1508
   PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)