【摘要】 点苍山西坡李子坪村分布有较多橄榄岩,围岩是一套中浅变质岩系,其中有斜长角闪岩、变质钠长花岗岩。这些岩石的岩相学、岩石化学及地球化学均显示蛇绿混杂岩特征,暗示点苍山西坡有古特提斯洋壳的残片存在。更多还原

【Abstract】 A lot of peridotites are distributed at Liziping Village on the western slope of Diancang Moun-tain.Their country rocks are a medium-and low-grade metamorphic series,consisting of amphibolite and metamorphosed albite granite.The petrography,petrochemistry and geochemistry of these rocks all indicate the features of ophiolitic melanges,suggesting the existence of relict fragments of the Paleo-Tethys oceanic crust on the western slope of Diancang Mountain.更多还原