Lunar Meteorite QUE94281: A Possible Pair of Y793274 and/or EET87521

Details Lunar Meteorite QUE94281: A Possible Pair of Y793274 and/or EET87521 Lunar Meteorite QUE94281: A Possible Pair of Y793274 and/or EET87521

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27...33a&link_type=abstract

Lunar and Planetary Science, volume 27, page 33

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4

Basalt: Mare, Breccia: Regolith, Meteorites: Lunar, Pyroxene, Very Low Titanium

Scientific paper

QUE94281 is a spherule-poor regolith breccia composed mainly of mineral fragments of pyroxene and plagioclase. Its overall texture is roughly intermediate between those of Y793274 and EET87521. About 2/3 of the pyroxene fragments larger than 100 mm contain pyroxene exsolution lamellae of order 1 mm in width, a remarkable similarity with Y793274 and EET87521. QUE94281 large pyroxenes also show a similar range of Fe-Mg-Ca variations to those of Y793274. Almost all the large pyroxene fragments distribute along a single crystallization trend on a Fe# (Fe/[Fe+Mg]) vs. Ti# (Ti/[Ti+Cr]) plot. The Ti# intercept at Fe# = 0.5 for this pyroxene trend suggests that the source mare basalt was a VLT variety with bulk-rock TiO2 ~ 0.8 wt%, another strong similarity with Y793274 and EET87521. QUE94281 is possibly a pair of Y793274 and/or EET87521.

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