| 云南澜沧老厂银铅矿区隐伏花岗岩体预测及其意义 |
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| 引用本文： | 欧阳成甫,徐楚明.云南澜沧老厂银铅矿区隐伏花岗岩体预测及其意义[J].大地构造与成矿学,1993,17(2):119-126. |
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| 作者姓名： | 欧阳成甫 徐楚明 |
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| 摘 要： | 根据老厂环形影象特征、大地构造背景及区域地质构造环境分析,岩浆岩脉的发现和田岩蚀变,地球化学及同位素地质特征等对老厂银铅矿区深部存在隐伏岩体进行了预测。老厂银铅矿床不是火山岩矿床,而是与地洼期隐伏岩体有关的中偏高温热液多因复成矿床,并预测于矿区深部可望找到新的金铜矿床类型的矿体。
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| 关 键 词： | 地洼型银铅矿床 隐伏花岗岩 隐伏矿床 矿床成因 云南澜沧 |
PREDICTED EXISTENCE OF A CONCEALED GRANITIC BODY IN THE LAOCHANG SILVER - LEAD DEPOSIT AND THE GEOLOGIC SIGNIFICANCE, LANGCHANG, YUNNAN |
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| Abstract: | Based on the characteristies of ring images, the geotectonics and regional geological analysis, the veins distribution, the wallrock alternations and the study of geochemistry and isotope geology, it is inferred that there is a concealed granitic body of the depth in the mining region. Therefore, it is suggested that the deposit is not a volcanic-origin Ag-Pb deposit , but a middle-hightemperature polygenetic compound one related to concealed diwa-period magmatic activities. A new Au-Cu type deposit is hypothesized to occur at depth in the mining district. |
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| Keywords: | diwa-type Ag-Pb deposit copper deposit concealed granite concealed deposit Langchang |
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