%0 Journal Article
%T Dating of copper mineralization in Jingbian deposit and its prospecting significance in Luzong basin, Anhui Province.<br>安徽庐枞盆地井边铜矿床的成矿时代及其找矿指示意义
%A ZHANG LeJun
%A ZHOU TaoF
%A FAN Yu
%A YUAN Feng
%A MA Liang
%A QIAN Bing
%A <br>张乐骏
%A 周涛发
%A 范裕
%A 袁峰
%A 马良
%A 钱兵
%J 岩石学报
%D 2010
%I 
%X Luzong basin is one of the most important metallogenic district in the mineralization belt of the Middle and Lower Reaches of the Yangtze River area, where occurs many vein-type copper deposits with various scales. Nevertheless, little research work has been done on the timing and tectonic setting of these deposits. In this paper we present the LA-ICP-MS zircon U-Pb dating results of andesite porphyry and fluid inclusions Ar-Ar dating results of quartz from Jingbian vein-type copper deposit. LA-ICP-MS zircon U-Pb dating yield the age of 133.2±1.7Ma, and fluid inclusions in quartz yield an isochronal age of 133.3±8.3Ma and an inverse isochronal age of 133.3±8.2Ma respectively. These results coincident with the geological characteristics of deposits and the available highly precise dating of related magmatic rocks. So the Jingbian vein-type copper deposit took place in Early Cretaceous and related to the intrusive activity of Zhuanqiao Formation. This mineralization event in Luzong basin were consistent with the second period (135~127Ma) magmatic and metallogenic activity in the Middle and Lower Reaches of the Yangtze River area, and corresponding to an extension tectonic environment. This contribution is not only providing evidence for a comprehensive understanding the magnetism and mineralization of the Luzong basin, but also shows the prospecting potential to find cooper deposit in this area.
%K Vein-type copper deposit
%K Fluid inclusions
%K Ar-Ar dating
%K LA-ICP-MS zircon U-Pb dating
%K Luzong basin
%K Prospecting potential<br>脉状铜矿床
%K 流体包裹体
%K Ar-Ar定年
%K LA-ICP-MS锆石U-Pb定年
%K 庐枞盆地
%K 找矿潜力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=8CDD0CC6FBDC8523D9FFB1359C744B6F&yid=140ECF96957D60B2&vid=96C778EE049EE47D&iid=9CF7A0430CBB2DFD&sid=DA18F418694A6B14&eid=C23E2C6FDD0F2AFE&journal_id=1000-0569&journal_name=岩石学报&referenced_num=4&reference_num=28