RESETTING OF Sm-Nd ISOTOPIC SYSTEM AMONG MINERALS——DISCOVERY FROM DATING OF CHENCAI GROUP  

作　　者：凌洪飞 章邦桐 沈渭洲 刘继顺 杨杰东 陶仙聪 

机构地区：[1]Department of Earth Sciences, Nanjing University, Nanjingv210008 PRC [2]Department of Geology, Central-South Industry University, Changsha 410083 PRC [3]Modern Analysis Centre, Nanjing University, Nanjing 210008 PRC

出　　处：《Chinese Science Bulletin》1992年第9期764-767,共4页

基　　金：Project supported by the National Natural Science Foundation of China.

摘　　要：The original rock formation age and metamorphic history of Chencai Group are one of the keys to understanding tectonics and early crustal evolution of Zhejiang and Fujian provinces. For the purpose of obtaining the original rock formation age and metamorphic age, Sm-Nd and Rb-Sr isotopic compositions of metamorphic rocks and minerals were determined. Although only the metamorphic age was obtained, Sm-Nd isotopic system resetting among minerals under amphibolite facies metamorphism was discovered, which is of significance for Sm-Nd chronology of metamorphic rocks.

关 键 词：whole-rock RB-SR ISOCHRON mineral SM-ND ISOCHRON SM-ND ISOTOPIC system RESETTING AMPHIBOLITE facies metamorphism 

分 类 号：N[自然科学总论]