Sm-Nd DATING OF THE JINCHUAN ULTRAMAFIC ROCK BODY, GANSU, CHINA  

作　　者：汤中立 杨杰东 徐士进 陶仙聪 李文渊 

机构地区：[1]Bureau of Geology and Mineral Resources of Gansu Province, Lanzhou 730000, PRC [2]Center of modern Analysis-Nanjing University,Nanjing 210008,PRC. [3]Department of Earth Scicnce Nanjing University Nanjing 210008-PRC

出　　处：《Chinese Science Bulletin》1992年第23期1988-1990,共3页

摘　　要：The Jinchuan ultramafic rock body mainly consists of lherzolites and a small amount of dunites and websterites. The largest Cu-Ni sulphide ore in China occurs in the rock body. Its original age remains equivocal now because the available age data are in disorder. This note reports the dating result obtained with Sm-Nd internal isochron method.

关 键 词：Jinchuan ULTRAMAFIC ROCK SM-ND age 

分 类 号：N[自然科学总论]