| 胶东西北部地区金矿床铅同位素特征及其地质意义 |
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| 引用本文： | 王义文.胶东西北部地区金矿床铅同位素特征及其地质意义[J].吉林大学学报(地球科学版),1988(3). |
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| 作者姓名： | 王义文 |
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| 作者单位： | 中国有色金属工业总公司吉林地质矿产研究所 |
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| 摘 要： | 胶东地区不同类型金银、铅锌矿床及交代—深熔花岗岩三者的铅同位素特征相似,皆为来自铀针亏损型源区的多阶段铅。在Pb~(207)/Pb~(204)-Pb~(206)/Pb~(204)图解上,它们的投影点可拟合成一条直线。据此,并根据大量的K-Ar、U-Pb、Rb-Sr和Ar~(30)-Ar~(40)年龄数据,得t_1=3.2Ga,t_2=0.15Ga,μ_1=7.07～8.17,W_1=29.16～35.80,Th/U=3.97～4.52。矿石铅与胶东群变质岩岩石铅同位素统计对比表明,金银、铅锌和交代—深熔花岗岩中的铅皆来自再活化的下地壳源铅。
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| 关 键 词： | 胶东地区 金矿床 铅同位素 |
LEAD ISOTOPE COMPOSITION OF GOLD DEPOSITS, NORTH-WESTERN JIAODONG SHANDONG, AND ITS GEOLOGICAL SIGNIFICANCE |
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| Wang Yi wenI ilin Research Diointon of Geology and Vincral Reources China Nonferrons Metals Industrial Company.LEAD ISOTOPE COMPOSITION OF GOLD DEPOSITS, NORTH-WESTERN JIAODONG SHANDONG, AND ITS GEOLOGICAL SIGNIFICANCE[J].Journal of Jilin Unviersity:Earth Science Edition,1988(3). |
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| Authors: | Wang Yi wenI ilin Research Diointon of Geology and Vincral Reources China Nonferrons Metals Industrial Company |
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| Institution: | Wang Yi wenI ilin Research Diointon of Geology and Vincral Reources China Nonferrons Metals Industrial Company |
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| Abstract: | |
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| Keywords: | Jiaodong gold deposits isotope |
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