| 河南老湾金矿床40Ar/39Ar定年及铅同位素研究 |
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| 引用本文： | 潘成荣,岳书仓. 河南老湾金矿床40Ar/39Ar定年及铅同位素研究[J]. 合肥工业大学学报(自然科学版), 2002, 25(1): 9-13 |
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| 作者姓名： | 潘成荣 岳书仓 |
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| 作者单位： | 1. 安徽省环境保护科学研究所,安徽,合肥,230061
2. 合肥工业大学资源与环境工程学院,安徽,合肥,230009 |
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| 基金项目： | “九五”地质矿产部重大基础资助项目 ( 95 0 110 2 ) |
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| 摘 要： | 河南老湾金矿床为桐柏山北坡金银成矿带的主要组成矿床 ,矿床分布受龟山岩组、老湾花岗岩和韧性剪切带控制。石英单矿物的 4 0 Ar/ 39Ar定年方法测得金矿床的成矿年龄为 ( 91.5± 1.0 ) Ma,即金矿床形成于燕山晚期。铅同位素的研究结果表明燕山晚期形成的老湾花岗岩为矿床形成提供了成矿热液和主要的成矿物质 ,龟山岩组变质岩为矿床的另一个物源
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| 关 键 词： | 老湾金矿床 老湾花岗岩 成矿时代 铅同位素 成矿物质 |
| 文章编号： | 1003-5060(2002)01-0009-05 |
| 修稿时间： | 2001-10-05 |
Research on the forming era of Laowan gold deposit in Henan Province and its lead isotope |
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| PAN Cheng rong ,YUE Shu cang. Research on the forming era of Laowan gold deposit in Henan Province and its lead isotope[J]. Journal of Hefei University of Technology(Natural Science), 2002, 25(1): 9-13 |
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| Authors: | PAN Cheng rong YUE Shu cang |
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| Affiliation: | PAN Cheng rong 1,YUE Shu cang 2 |
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| Abstract: | Laowan gold deposit is the main deposit of gold silver deposit belt locating at northern Tongbai Mountain in Henan Province. The distribution of the deposit is limited by Guishan group,Laowan granite and the ductile shear zone.The gold deposit era is 91.5 Ma by determining 40 Ar/ 39 Ar in quartz.The study of the lead isotope in the deposit shows that Laowan granite forming at late Yanshan era provides the deposit forming fluid and the main substance and Guishan group is the other substance source. |
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| Keywords: | Laowan gold deposit Laowan granite deposit forming era lead isotope deposit forming subtance |
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