Crystallization, Recrystallization, and Impact Metamorphic Ages of Monomict Eucrite Y792510

Details Crystallization, Recrystallization, and Impact Metamorphic Ages of Monomict Eucrite Y792510 Crystallization, Recrystallization, and Impact Metamorphic Ages of Monomict Eucrite Y792510

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..969n&link_type=abstract

Lunar and Planetary Science, volume 27, page 969

Computer Science

2

Age, Eucrites, Isotopes: Chromium, Isotopes: Neodymium, Isotopes: Strontium

Scientific paper

Y792510 is a monomict eucritic breccia of Takeda-Graham metamorphic grade 6, the highest metamorphic grade. In a companion abstract, Y792510 is interpreted as a metamorphosed version of Y75011,84, a pristine, unmetamorphosed basalt clast in polymict eucrite Y75011. Y75011,84 is characterized by areas of dark glassy mesostasis. Interstitial areas in Y792510 texturally equivalent to mesostasis in Y75011,84 contain a recrystallized mineral assemblage. Homogenized pyroxenes contain augite exsolution lamellae up to ~8 micrometers in width. Additionally, Y792510 contains granoblastic augite and K-, Na-rich inclusions in plagioclase.

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