Anorthositic lunar regolith breccia Dhofar 1769—Clear indications for repeated mixing of impact melt lithologies

The lunar regolith breccia Dhofar 1769, which was found in 2012 as a single 125 g piece the Zufar desert area of Oman, contains relatively large, dark-colored impact melt embedded fine-grained clastic matrix. internal texture fragment indicates repeated formation on surface, their brecciation, and mixing second, third, fourth generations brecciated rock types. chemical mineralogical data reveal incorporation feldspar-rich subophitic crystalline within microporphyritic breccia. This lithic paragenesis itself is mafic, entire with three different melts has been finally incorporated into whole are mixtures source rocks projectiles, based obtained minor trace element compositions (in particular Ni rare earth elements [REE]) lithologies. For all processes formation, additional steps brecciation re-lithification require minimum number seven processes.