VUGS IN ORDINARY CHONDRITES
作者:
Edward Olsen,
期刊:
Meteoritics
(WILEY Available online 1981)
卷期:
Volume 16,
issue 1
页码: 45-59
ISSN:0026-1114
年代: 1981
DOI:10.1111/j.1945-5100.1981.tb00184.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Large vugs occur in the ordinary chondrite, Farmington. They contain the same phases present in the body of the meteorite, either as vug wall lining or as crystals attached to linings. The morphologies of these phases indicate a history of melting and vapor deposition. These vugs are compared with vugs in the ordinary chondrites, Orvinio and Tadjera, and with published reports of vugs in Rose City and Shaw. It is concluded that although shock events may not cause heating above the liquidus for the body of the meteorite, local pockets of melting and vapor formation do occur due to inhomogenieties in the shock wave pattern. Vugs represent such pockets. Vug formation, as a consequence of shock processing, is widespread among ordinary chondrites and shows no correlation with the average temperature of shock heating, subsequent average cooling rate (as indicated by metallurgical criteria), or blackening of body color.
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