| 辽南地区金矿床铅同位素组成特征 |
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| 引用本文： | 张可清,沙博宇.辽南地区金矿床铅同位素组成特征[J].黄金地质,2000,6(3):52-56. |
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| 作者姓名： | 张可清 沙博宇 |
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| 作者单位： | [1]中国地质大学,湖北武汉 [2]辽宁五龙金矿,辽宁丹东 |
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| 摘 要： | 辽南地区是我国重要的金矿化集中区，区内产出大、中，小型金矿２０余处。简要叙述了猫岭，五龙，四道沟，岫岩，新房５个金矿床的地质概况。讨论了它们的铅同位素组成并划分为两大类：第一类具有正常铅的同位素组成，其成矿年龄与辽河群变质年龄相当；第二类具有异常铅的同位素组成。在铅构造模式图上，上述５个金矿床铅同位素组成具有壳源铅的特点。
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| 关 键 词： | 金矿床 铅同位素 辽南 |
Lead isotopic studies of gold deposits in southern Liaoning |
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| ZHANG Ke qing ,WEI Jun hao ,YANG Yong ,SHA Bo yu ,LIU Tie xia ,YANG Chun fu.Lead isotopic studies of gold deposits in southern Liaoning[J].Gold Geology,2000,6(3):52-56. |
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| Authors: | ZHANG Ke qing WEI Jun hao YANG Yong SHA Bo yu LIU Tie xia YANG Chun fu |
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| Institution: | ZHANG Ke qing 1,WEI Jun hao 1,YANG Yong 1,SHA Bo yu 2,LIU Tie xia 2,YANG Chun fu 2 |
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| Abstract: | Southern Liaoning is a main gold metallogenic concentration area in China. There are more than twenty large, middle, small scale gold deposits in this area. Five gold deposits, named Wulong, Sidaogou, Maoling, Xiouyan and Xinfang, have been briefly introduced. On the basis of general geological setting of above five gold deposits, the lead isotopic compositions have been discussed and divided into two types. The first typical gold deposit (such as Maoling) has normal lead isotopic compositions. The mineralization model age is metamorphosed age of Liaohe group. The second of gold deposits has anomal lead isotopic feature. The lead isotopic compositions of above five gold deposits in Pb Pb structural model diagram are close to the upper lower crust evolution line. These show the lead isotopic features of shallow sources about five gold deposits. |
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| Keywords: | gold deposit lead isotopic composition south of Liaoning |
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