摘要
龙木错-双湖变质带由复杂的变质岩系岩石组成,表现为较典型的蛇绿构造混杂岩特征。该带经历不同的变质作用,浅变质岩系分布面积较广,总体变质程度不高,而变质程度较高的角闪岩相变质带与南侧蓝片岩-榴辉岩相高压变质带,大致沿龙木错-双湖结合带近东西向展布。根据各变质岩系岩石的变质作用期次,大致恢复该高压变质带的形成过程。
Longmucuo-Shuanghu metamorphic belt consists of complex metamorphic rock series, showing more typical ophiolite melange features. This belt experiences different metamorphism, shallow metamorphic rock series within the research area distribute widely,but the overall degree of metamorphism is not high, while higher metamorphic grade amphibolite facies metamorphic belt and the blue schist - eclogite phase high-pressure metamorphic belt in the south side, the rock metamorphism period time pressure metamorphic belt. roughly EW stretch along the Longmu of metamorphic rock series, restore the cuo-Shuanghu junction. According to roughly the formation process of high pressure metamorphic belt.
出处
《四川有色金属》
2015年第4期17-20,24,共5页
Sichuan Nonferrous Metals
关键词
西藏
龙木错-双湖变质带
变质作用
变质特征
Tibet
Longmucuo-Shuanghu metamorphic belt
metamorphism
metamorphic characteristics
