QUE94201, A Noncumulate Shergottite?

Details QUE94201, A Noncumulate Shergottite? QUE94201, A Noncumulate Shergottite?

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..853m&link_type=abstract

Lunar and Planetary Science, volume 27, page 853

Computer Science

3

Mars, Meteorites, Pyroxene, Shergottite

Scientific paper

Basaltic shergottites were initially described as cumulates, based on strong preferred orientation of pyroxene grains and non-cotectic compositions. More recent studies have interpreted these rocks as flows that contained some entrained pyroxene crystals; however, the homogeneous magnesian pyroxene cores are assumed to have grown at depth from a larger body of magma, and so in this sense were "cumulus." Although the proportion of cumulus cores has been a subject of controversy, the basic model for their formation has not been questioned (except by who described irregularly zoned pigeonite cores in Zagami). The newly recovered Antarctic shergottite QUE94201 appears not to contain any cumulus crystals.

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