Mineralogy and geochemistry of lunar meteorite Queen Alexandra Range 93069

摘要: — Queen Alexandra Range (QUE) 93069 is a glass-rich regolith breccia derived from the lunar highlands. The high abundance of glassy fragments, presence agglutinates, small size all mineral and glass mostly melt rocks, low pristine crustal indicate that QUE mature regolith. This conclusion also supported by its siderophile element content. most common mafic pyroxene, with compositions derivation ferroan ANT suite rocks. Rare gabbro differentiation products may be indicated silica, fayalitic olivine, one pyroxferroite grain. Lithic fragments are meta-melt rocks composition. dominated troctolitic anorthosite compositions, followed gabbroic noritic anorthosite. Most glasses ol-normative in Some rare basic composition were observed. Glass matrix alkali-poor, except for some alkali-rich shards. bulk chemical 93069, as well rare-earth-element (REE) pattern, very similar to other highlands meteorites, such MAC 88105 Y-86032 average crust. One porous clast was found rich volatile elements, lithophile elements. As this sample contains abundant sulfides, enrichments could related mobilization redistribution sulfur species.