极地研究

极地研究 ›› 2008, Vol. 20 ›› Issue (2): 141-152.

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100块南极格罗夫山陨石的分类及其成对陨石的初步判别

缪秉魁;王道德;胡森;王葆华;刘焘;王秀娟;冯璐;   

  • 出版日期:2008-06-30 发布日期:2008-06-30

CLASSIFICATION OF 100 GROVE MOUNTAINS METEORITES AND PRELIMINARY PAIRING

  • Online:2008-06-30 Published:2008-06-30

PDF (PC)

1502

被引次数

16

摘要：

通过岩石矿物学特征的观察和矿物成分的电子探针分析,对采自南极格罗夫山的100块陨石进行了分类研究,确定了它们的化学群、岩石类型、冲击变质程度和风化程度,其中8块陨石划分为H4型,15块为H5型,3块为H6型,1块为L3型,2块为L4型,16块为L5型,47块为L6型,5块为LL3型,1块为LL4型,2块为LL5型。经过岩石矿物学特征和矿物成分的对比分析,初步判定成对陨石21组。

关键词: 南极陨石;格罗夫山;普通球粒陨石;分类;成对陨石

Abstract:

Based on the petrologic characteristics by optical microscope and analyses of mineral chemistry by electronic microprobe,100 meteorites collected from Grove Mountains,Antarctica,are classified into different chemical groups,rock types,shock stages and weathering degrees.Eight of them are classified into H4,15 into H5,3 into H6,1 into L3,2 into L4,16 into L5,47 into L6,5 into LL3,1 into LL4,and 2 into LL5.Furthermore,according to their petrologic features and mineral chemistry,21 groups of meteorites are preliminarily paired.