POTASSIUMFELDSPAR PHENOCRYSTS IN SURFACE OF COLOMERA AND IRON METEORITE

被引：52

作者：

WASSERBURG, GJ

SANZ, HG

BENCE, AE

机构：

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

来源：

SCIENCE | 1968年 / 161卷 / 3842期

关键词：

D O I：

10.1126/science.161.3842.684

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 planetary core.

引用

页码：684 / +

页数：1

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