Cumulate Eucrites Formed from Normal Eucritic Magmas

Details Cumulate Eucrites Formed from Normal Eucritic Magmas Cumulate Eucrites Formed from Normal Eucritic Magmas

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1337t&link_type=abstract

Lunar and Planetary Science, volume 27, page 1337

Computer Science

Basalt, Eucrites: Cumulate, Igneous Processes

Scientific paper

The cumulate eucrites are pyroxene-plagioclase gabbros which do not represent magma compositions. Most studies have concluded that the cumulate eucrites did not form simply from known eucrite basalts, but rather from extremely fractionated magmas derived from eucrites or through complex petrogenetic processes. However, the compositions of many cumulate eucrites can be modeled as simple, closed-system cumulates of pigeonite + plagioclase + known eucritic magmas. Thus, the cumulate eucrites require only simple processes (e.g., gravitational settling) on the eucrite parent body, and provide little support for extreme fractionation or complex petrogenesis.

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