| 福建漳平北坑场钼多金属矿床辉钼矿Re-Os同位素年龄及其地质意义 |
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| 引用本文： | 张达,吴淦国,刘乃忠,狄永军,吕良冀,曹文融.福建漳平北坑场钼多金属矿床辉钼矿Re-Os同位素年龄及其地质意义[J].地质学报,2010,84(10). |
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| 作者姓名： | 张达 吴淦国 刘乃忠 狄永军 吕良冀 曹文融 |
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| 作者单位： | 中国地质大学地质过程与矿产资源国家重点实验室;中国地质大学岩石圈构造、深部过程及探测技术教育部重点实验室;中国地质大学(武汉)资源学院;福建省地质调查研究院;南加州大学地球科学系; |
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| 基金项目： | 中国地质调查项目，％％，％％，"111"计划项目 |
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| 摘 要： | 福建漳平钼多金属矿床位于闽西南晚古生代坳陷东缘。中生代以来,闽西南坳陷经历了强烈的构造岩浆作用的改造,并伴随多期次成矿作用的发生。已有同位素年代学研究成果表明该区存在早侏罗世、中侏罗世以及早白垩世成矿作用,但缺少与晚侏罗世大规模岩浆作用相关的成矿年代学记录。本文选取漳平北坑场钼多金属矿床开展辉钼矿的Re-Os同位素年代学研究。根据Re-Os同位素测年结果,结合矿床围岩蚀变及矿化特征以及与岩体的相互关系,指出钼矿化的形成经历了多个成矿阶段,其中小规模的矿化发生在148.8±2.2Ma。主矿化阶段形成的矿床以细脉或网脉状赋存于下二叠统翠屏山组石英细砂岩中,其等时线年龄为139.8±2.3～143.7±2.1Ma,为晚侏罗世—早白垩世成矿。成矿物质主要来源于特提斯向环太平洋构造域转换后闽西南地区晚侏罗世—早白垩世壳源花岗岩浆。
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| 关 键 词： | Re-Os同位素年龄 辉钼矿 北坑场钼多金属矿 福建漳平 |
Re-Os Isotopic Age of Molybdenite from the Beikengchang Molybdenite and Polymetal Deposit in Zhangping City, Fujian Province and Its Geological Significance |
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| ZHANG Da,WU Ganguo,LIU Naizhong,DI Yongjun,L Liangji,CAO Wenrong.Re-Os Isotopic Age of Molybdenite from the Beikengchang Molybdenite and Polymetal Deposit in Zhangping City, Fujian Province and Its Geological Significance[J].Acta Geologica Sinica,2010,84(10). |
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| Authors: | ZHANG Da WU Ganguo LIU Naizhong DI Yongjun L Liangji CAO Wenrong |
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| Affiliation: | ZHANG Da,WU Ganguo,LIU Naizhong,DI Yongjun,L(U) Liangji,CAO Wenrong |
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| Abstract: | The Beikengchang molybdenite and polymetal deposit in Zhangping City is located on the eastern part of the Late Paleozoic depression of the southwestern Fujian Province which has experienced the strong tectono-magmatic process with multi-phase mineralization since Mesozoic. The previous isotopic chronological data in the southwestern Fujian Province indicated that there were mineralization during Early and Middle Jurassic and Early Cretaceous,but lack of the mineralization chronological record related to th... |
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| Keywords: | Re-Os isotopic age molybdenite Beikengchang Mo and multi-metal deposit the Zhangping City of Fujian Province |
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