赣南崇义地区淘锡坑钨矿的地质特征与成矿时代  

Geological characteristics and mineralization age of the Taoxikeng tungsten deposit in Chongyi County, southern Jiangxi Province, China.

作　　者：陈郑辉[1] 王登红[1] 屈文俊[2] 陈毓川[3] 王平安[4] 许建祥[3] 张家菁[3] 许敏林[5] 

机构地区：[1]中国地质科学院矿产资源研究所,北京100037 [2]国家地质实验测试中心,北京100037 [3]中国地质科学院,北京100037 [4]中国地质科学院地质力学研究所,北京100081 [5]江西省赣南地质调查大队,江西赣州341000

出　　处：《地质通报》2006年第4期496-501,共6页Geological Bulletin of China

基　　金：中国地质调查局地质调查项目<中国成矿体系与区域成矿评价>(K1.4-3-4)国土资源部百人计划项目科技攻关项目(2003BA612A-01)等的资助。

摘　　要：江西省崇义县淘锡坑钨矿区位于南岭东西向构造带东段与武夷山北东—北北东向构造带南段的复合部位,是九龙脑-淘锡坑矿田的一个重要矿区,属于以石英脉型黑钨矿为主的钨多金属矿床。矿脉穿切于震旦系中,成矿主要受北西向断裂控制, 成因与燕山期岩浆作用有关。选取舍矿石英脉中与黑钨矿共生的辉钼矿进行Re-Os等时线年龄的测定,得到辉钼矿的等时线年龄为154．4Ma±3．8Ma,黑钨矿的模式年龄为164．0Ma+2．7Ma,表明该矿床形成于燕山早期。The Taoxikeng tungsten deposit, located in the compounding belt between the eastern segment of the E-Wtrending NaMing tectonic zone and the southern segment of the NE-NNE Wuyishan tectonic belt, is an important mining area in the Jiulongnao-Taoxikeng orefield, belonging to a quartz vein-type tungsten polymetallic deposit consisting predominandy of wolframite. The ore veins cut the Sinian and the tungsten mineralization is mainly controlled by a NW-trending fault. Moiybdenite associated with wolframite from quartz ore veins yielded a Re-Os isochron age of 154.4±3.8 Ma and the model age of wolframite is 164.0±2.7 Ma. This suggests that the Taoxikeng deposit formed in the early Yanshanian and is geneticaUy related to Yanshanian magmatism.

关 键 词：Re—Os等时线 矿化年龄 辉钼矿 黑钨矿 赣南崇义地区 

分 类 号：P618.67[天文地球—矿床学]