Host: Japan Association of Mineralogical Sciences
Our understanding of the lunar crust has made considerable progress since the discovery of feldspathic lunar meteorites and global geochemical mapping by lunar missions such as Kaguya. Our detailed mineralogical and geochemical studies show that two lunar meteorites Y86032 and Dho 489 (and paired meteorites) could have come from the regions unsampled by the Apollo missions. Y-86032 is a complicated feldspathic breccia composed of various highland components, and contains unusual Na-rich anorthosite clasts. Dho 489 and paired rocks have bulk compositions with significantly low FeO and high MgO/FeO ratios. The presence of these meteorites indicates that lunar crust is geochemically variable.
