广西都庞岭李贵福钨锡多金属矿Re-Os同位素定年研究  

Re-Os isotope dating of the Liguifu tungsten-tin polymetallic deposit in Dupangling area,Guangxi

作　　者：邹先武[1] 崔森[1] 屈文俊[2] 白云山[1] 陈希清[1] 

机构地区：[1]宜昌地质矿产研究所,湖北宜昌443003 [2]国家地质实验测试中心,北京100037

出　　处：《中国地质》2009年第4期837-844,共8页Geology in China

基　　金：中国地质调查局地质大调查项目(200411)资助

摘　　要：李贵福钨锡多金属矿赋存于都庞岭复式花岗岩体东部。矿床类型主要为云英岩-石英脉型。通过对矿石中辉钼矿Re-Os同位素测年,获得等时线年龄为(211.9±6.4)Ma(n=7,MSWD=4.1),模式年龄的加权平均值为(213.3±2.9)Ma(MSWD=4.0)。结果显示成矿作用发生在印支期,表明都庞岭地区存在早中生代钨锡多金属成矿事件。The Liguifu tungsten-tin polymetallic deposit occurs in the east of Dupangling granite, being mainly of the greisen-quartz vein type. The precise Re-Os isotope dating of molybdenite from the ore shows that the isochron age is （211.9±6.4）Ma （n=7,MSWD=4.1）, and the weighted average of model ages is （213.3±2.9） Ma （MSWD=4.0）. The isochron age suggests that mineralization took place in the Indo-Chinese epoch, and the result demonstrates that Early-Mesozoic tungsten-tin polymetallic mineralization did happen in Dupangling area.

关 键 词：钨锡矿 Re—Os定年 李贵福 都庞岭 

分 类 号：P618.44[天文地球—矿床学] P597.3[天文地球—地质学]