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安徽岳西榴辉岩及伴生石榴石橄榄岩岩体包括碧溪岭石榴石橄榄岩-榴辉岩(以下简称碧溪岭岩体)和南山岭榴辉岩-石榴石橄榄岩(以下简称南山岭岩体)。两岩体相距约5km,均位于大别地块中部,围岩分别为早元古代大别群程家河组和桥岭组片麻岩。 碧溪岭岩体以榴辉岩为主体,石榴石橄榄岩呈条带状或透镜状分布于榴辉岩中,两者之间界限清晰,在石榴石橄榄岩中时见榴辉岩包体。榴辉岩主要由石榴石(50—60％)、单斜辉石(30—50％,多半为绿辉石)、石英(0—10％
Anhui Yuexi eclogite and associated garnet peridotite include Bixi garnet peridotite-eclogite (hereinafter referred to as Bixiling rock mass) and Nanshanling eclogite-garnet peridotite (hereinafter referred to as Nanshanling rock body). The two rock masses are about 5 km apart, all located in the middle part of the Dabie massif. The surrounding rocks are respectively the Chengjiahe Dabiequn and Qiaoling gneiss in the Early Proterozoic. Bixi Ling rock body is mainly eclogite, garnet peridotite strip or lens distribution in the eclogite, the clear boundary between the two, in the garnet peridotite eclogite inclusions . Eclogites are mainly composed of garnet (50-60%), clinopyroxene (30-50%, mostly omphacite), quartz (0-10%