内蒙古东乌旗奥尤特铜矿床的成矿时代  

Metallogenic epoch of the Aoyoute copper deposit in Dong Ujimqin Banner,Inner Mongolia

作　　者：李俊建[1] 赵泽霖[1,2] 党智财 戴桐模 王守光[4] 付超 赵丽君 

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]中国地质科学院研究生部,北京100037 [3]中国有色桂林矿产地质研究院,广西桂林541004 [4]内蒙古自治区地质调查院,内蒙古呼和浩特010020

出　　处：《地质通报》2016年第4期537-541,共5页Geological Bulletin of China

基　　金：中国地质调查局项目(编号:1212010561510;1212010811061;1212011120330;12120114001201;1212010781028;1212011085488;121201006000150015);国土资源公益性行业科研专项(编号:200811010);国家国际科技合作项目(编号:2012DFB20220)

摘　　要：奥尤特铜矿床位于内蒙古东部东乌旗地区,是二连-东乌旗成矿带最为典型的铜矿床之一,矿床赋存于侏罗纪一套陆相火山岩和次火山岩中,容矿岩石主要为火山角砾岩、含砾熔结凝灰岩、流纹岩及流纹斑岩。本文选取矿区出露的含矿石英脉,进行了石英^(40)Ar/^(39)Ar法同位素年龄测定,结果表明,奥尤特铜矿床的成矿时代为187.11±3.50Ma。The Aoyoute copper deposit located in Dong Ujimqin Banner of eastern Inner Mongolia is one of the most typical deposits along the Erlian- Dong Ujimqin Banner metallogenic belt. The deposit lies in a suite of Jurassic continental volcanic rocks and sub-volcanic rocks. The country rocks are mainly composed of volcanic breccia,conglomeratic ignimbrite,rhyolite and rhyolite porphyry. Choosing the ore-bearing quartz vein which is closest to the mineralization in the deposit,the authors performed dating with the quartz ^（40）Ar/^（39）Ar method. The results show that the metallogenic epoch of the Aoyoute copper deposit is 187.11±3.50 Ma.

关 键 词：成矿时代 奥尤特铜矿床 内蒙古东乌旗地区 

分 类 号：P618.41[天文地球—矿床学]