Abstract
Most achondrites experienced shock and thermal metamorphism after its formation evidenced by brecciation, melting, recrystallization, and homogenization of minerals. We performed heating experiments of a basaltic eucrite near the solidus. In the recovered samples, thin glass melts and pockets occur pervasively. These glasses are enriched in P, Ti, K, and REEs due to melting of minor minerals such as Ca-phosphates and Ti-oxides. We showed that high temperature metamorphism of basaltic eucrites near the solidus would cause significant redistribution of trace elements by small degrees of melting. This suggests that high temperature metamorphism causes depletions of REEs and disturbance of some isotopic systems.
