柳河地区晚太古代高级变质区地质特征及变质作用  

GEOLOGIC FEATURES AND METAMORPHISM OFTHE LATE ARCHEOZOIC HIGH-GRADE METAMOPHIC REGIONIN THE LIUHE AREA,JILIN PROVINCE

作　　者：王永胜[1] 曲永贵[1] 王福宽[1] 刘凤侠 

机构地区：[1]吉林地勘局第三地质调查所

出　　处：《吉林地质》1998年第4期65-75,共11页Jilin Geology

摘　　要：笔者在１∶５万区调工作中，于吉林省柳河地区首次发现了高级变质区，其变质程度达到麻粒岩相。通过野外地质观察、薄片研究、放射性同位素、ｐ－Ｔ－ｔ轨迹等方法和手段，对该区的变质时代、变质阶段、变质温压及构造环境等方面做了较深入的研究，并综合分析了该区的变质作用。In the regional geologic investgation(1∶50 000)the high grade metamorphic area was found for the first time in the Liuhe area,Jilin province,the degree of metamorphism can be granulite facies.Through the field geological survey, thin section analysis,radioisotopic tracing,P_T_t path mothod etc.,the metamorphic age,stages,temperature-pressure and structural settings are further studied,meanwhile,the metamorphism in the study area is analysed systematically.

关 键 词：柳河地区 麻粒岩相 变质岩 变质区 地质特征 

分 类 号：P588.346[天文地球—岩石学]