内蒙古温都尔庙群SHRIMP年龄新解  

A new explanation of SHRIMP age of Wenduermiao Group in Inner Mongolia

作　　者：冯桂兴 李树才[2] 邓绍颖 刘腾飞[1] 吴连亨 王强[1] 史宏博[1] 

机构地区：[1]河北省区域地质矿产调查研究所,河北廊坊065000 [2]国土资源实物地质资料中心,河北三河市燕郊065201

出　　处：《矿产与地质》2015年第2期267-272,共6页Mineral Resources and Geology

摘　　要：文章对温都尔庙群的绢云石英片岩进行锆石SHRIMP测年,大致可以分为850~950Ma和450~550Ma两组年龄,认为前一组年龄为该群变质年龄,后一组为加里东期岩浆热事件叠加年龄,故温都尔庙群时代归属应为新元古代。This paper conducted SHRIMP zircon dating on sericite quartz schistin Wenduermiao Group,and the re-sults showed that the ages could be roughly categorized into 850~950Ma and 450~550Ma.The author believed that first category of ages was the metamorphic age of the group,while the latter was Caledonian magma hydrothermal superimposed age.Therefore,the epoch of Wenduermiao Group should be in Neoproterozoic era.

关 键 词：温都尔庙群 锆石 SHRIMP测年 新元古代 

分 类 号：P588.14[天文地球—岩石学]