Introduction: Eucrite meteorites represent earlyformed (~4.557-4.565 Ga) crustal basalts and basaltic to gabbroic cumulates from the howardite-eucritediogenite (HED) parent body or bodies (e.g., [1]). The HED are commonly thought to originate from the asteroid Vesta (e.g., [2-3]), although O-isotopes for eucrites [4] and diogenites [5] indicate more than one parent body. Approximately 85% of eu...

Introduction: A considerable amount of debate exists on the petrogenesis of eucrites, basaltic meteorites believed to have originated on the asteroid 4 Vesta [1]. One school of thought, developed by Stolper [2], suggests that most eucrites are primary partial melts of chondritic material, while another by Mason [3] suggests that eucrites are residual liquids that resulted from fractional crysta...