grained, igneous rock, namely a cumulate orthopyroxenite, with a crystallization age of 4.56 Ga [Mittlefehldt, 1994]. Treiman [1995] states that ALH84001is plutonic not volcanic, unlike the other Martian meteorites. This sample records evidence of two shock metamorphic events (impacts), separated by...
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.587.2958 http://www.lpi.usra.edu/meetings/lpsc97/pdf/1859.PDF |