维普中文期刊产品整合服务

Zircon U-Pb dating confirms existence of a Caledonian scheelite-bearing aplitic vein in the Penggongmiao granite batholith, South Hunan

查看全文 作　　者：ZHANG [1]WenLan;WANG [1]RuCheng;LEI [2]ZeHeng;HUA [1]RenMin;ZHU [1]JinChu;LU [1]JianJun;XIE [1]Lei;CHE [1]XueDong;ZHANG [1]RongQing;YAO [1]Yuan;CHEN [1]Jun 高影响力作者 机构地区：[1]School of Earth Sciences and Engineering, State Key Laboratory for Mineral Deposits Research, Nanjing University, Nanjing 210093, China;[2]South Hunan Geological Survey, Chenzhou 423000, China高影响力机构 出　　处：《Chinese Science Bulletin》索引2011年第56卷第19期,共6页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China (40730423);the Ministry of Science and Technology (2007CB411404);the China Geological Survey (1212010632100);the Ministry of Land and Resources (201011046) 摘　　要：Granite at Penggongmiao is a large batholith in the Nanling Range, with an outcrop area of over 900 km 2 . There are many scheelite-quartz veins around the granite. LA-ICP-MS U-Pb dating was carried out for zircons from the granite. The middlecoarse-grained biotite granite has U-Pb ages of 435 to 436 Ma. Ages of 426.5±2.5 Ma were obtained for aplitic dyke cross-cutting the granite. The scheelite of magmatic origin in the aplite dyke was identified from petrographic investigation. This demonstrates that W-bearing granites of Early Paleozoic (corresponding to the Caledonian orogensis in the traditional sense) occur in the Nanling Range. This finding has important implications for the ore-forming potential of Paleozoic granites and on the extent of Mesozoic mineralization. Thus it merits performing an intensive study of Paleozoic granites in South China. The occurrences of aplite or microgranite may be an indicative of the Caledonian tungsten granites and associated W mineralization. 关 键 词：花岗岩基 加里东期 白钨矿 年龄 Pb 锆石 轴承 静脉
相关文献

参考文献(20)

引证文献(23)

耦合文献(1379)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费