摘要
虎什哈一带的变质侵入岩中见有细粒合石榴二辉斜长麻粒岩和中细粒二辉斜长麻粒岩。前者主要分布于变质酸性侵入岩中，后者主要分布于中基性侵入岩中。其围岩均为角门岩相的变质侵入岩。宏微观资料及岩石化学、地球化学特征表明，两种麻粒岩成因不同。细粒含石榴麻粒岩为变质酸性侵入岩中的捕虏体，中细粒麻粒岩为岩浆成因的变质基性岩脉。尽管二者用二辉石地质温度计得到了相近的温度，后者只反映脉岩的逆变质温度。
here are fine grained garnel-bearing two pyroxene plagioclases granulite and mediumfine grained two pyroxene plagioclase granulite occurring in meta-plutones in the Hushiha area. The former mainly distributes in metamorphic acid intrusions and the latter occurs in metamorphic medium-basic intrusions. Both the host rock are amphibolite face metamorphic intrusions. The macro-and micro-scope material and the petrochemical and geochemical feature show that the origin of the two types of granulites is different. The former.is orginally xenolites in matamorphic acid intrusion and the latter from metamorphic basic dykes.Although the two pyroxenes pair themometer in boh granulates have similar results,the temperature from the latter is only responsible for metamorphic condition of the dykes.
