Explosive volcanism and the graphite-oxygen fugacity buffer on the parent asteroid(s) of the ureilite meteorites

Details Explosive volcanism and the graphite-oxygen fugacity buffer on the parent asteroid(s) of the ureilite meteorites Explosive volcanism and the graphite-oxygen fugacity buffer on the parent asteroid(s) of the ureilite meteorites

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar..100..110w&link_type=abstract

Icarus (ISSN 0019-1035), vol. 100, no. 1, p. 110-126.

Computer Science

50

Asteroids, Graphite, Oxygen, Petrology, Ureilites, Volcanology, Basalt, Carbon Compounds, Mass Balance, Melting, Oxides, Rare Earth Elements

Scientific paper

A new model of the production of the uniformly low plagioclase and Al contents of ureilites is proposed. It is argued that those contents are consequences of widespread explosive volcanism during the evolution of the parent asteroid(s). It is noted that the great abundance of graphite on the ureilite asteroid(s) made them ideal sites for explosive volcanism driven by oxidation of graphite in partial melts ascending within the asteroid(s).

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