An inclusion of ALH-77004 - A possible surface regolith of L chondrite parent body

Details An inclusion of ALH-77004 - A possible surface regolith of L chondrite parent body An inclusion of ALH-77004 - A possible surface regolith of L chondrite parent body

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983polre..30...36m&link_type=abstract

(National Institute of Polar Research, Symposium on Antarctic Meteorites, 8th, Tokyo, Japan, Feb. 17-19, 1983) National Institut

Mathematics

Logic

Chondrites, Fayalite, Inclusions, Meteoritic Composition, Petrography, Regolith, Chromites, Histograms, Iron Compounds, Nickel Compounds, Troilite

Scientific paper

An inclusion in ALH-77004 (H4 chondrite) consists of four different constituents with varying degree of recrystallization; (1) moderately to highly recrystallized lithic and chondrule fragments (fayalite-rich group), (2) unequilibrated chondrules (fayalite-poor group), (3) fine-grained dark clastic matrix, and (4) particles of Fe-Ni metal, troilite, and chromite. From petrological examinations of these constituents, it is suggested that the inclusion was a surface regolith of the L chondrite parent body formed by repetitive impact cratering processes extended to various depths of the body.

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