Formation of ureilites by impact-melting of carbonaceous chondritic material

Details Formation of ureilites by impact-melting of carbonaceous chondritic material Formation of ureilites by impact-melting of carbonaceous chondritic material

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988metic..23..333r&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 23, Dec. 1988, p. 333-337.

Computer Science

24

Carbonaceous Chondrites, Impact Melts, Meteoritic Composition, Meteoritic Microstructures, Ureilites, Abundance, Breccia, Geochemistry, Geomorphology, Olivine, Petrology

Scientific paper

Ureilites are modeled as impact-melt products of CV-chondrite-like material. This model is consistent with the brecciated nature and cumulate textures of ureilites, O-isotopic constraints (which indicate ureilite derivation from an isotopically heterogeneous body like the CV-chondrite parent), the high abundance of planetary-type noble gases, and the relatively high concentrations of siderophile and chalcophile elements (indicating incomplete separation of metal-sulfide from silicate). Each ureilite may have been derived from a separate cratering event.

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