| 额仁陶勒盖银矿床成矿作用的地球化学标志 |
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| 引用本文： | 张乾,董振生.额仁陶勒盖银矿床成矿作用的地球化学标志[J].矿物学报,1996,16(2):152-157. |
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| 作者姓名： | 张乾 董振生 |
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| 作者单位： | 中国科学院地球化学研究所!贵阳，550000，中国科学院地球化学研究所!贵阳，550000，中国科学院地球化学研究所!贵阳，550000 |
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| 基金项目： | 国家自然科学基金!49133080 |
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| 摘 要： | 内蒙古额仁陶勒盖大型独立银矿床产于以安山岩－玄武岩为主的火山一次火山岩中，矿体顺断裂构造产出，主要矿体分布于南北长近１０ｋｍ，东西宽约１５ｋｍ的范围内，除银外，伴生的铅，锌，锰等均不具工业价值，该矿床已发现银的独立矿物２０余种，主要与黄铁矿，菱锰矿及少量方铅矿，闪锌矿共生，地质特征显示出矿床相对围岩的后成特点，地球化学表明该矿床的形成是以火成岩（火山－次火山岩）为矿源岩的后成改造型银矿床。
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| 关 键 词： | 成矿作用 地球化学标志 银矿床 |
GEOCHEMICAL MARKS OF METALLOGENESIS OF THE ERENTAOLEGAI SILVER DEPOSIT |
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| Zhang Qian, Dong Zhensheng, Zhan Xinzhi.GEOCHEMICAL MARKS OF METALLOGENESIS OF THE ERENTAOLEGAI SILVER DEPOSIT[J].Acta Mineralogica Sinica,1996,16(2):152-157. |
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| Authors: | Zhang Qian Dong Zhensheng Zhan Xinzhi |
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| Abstract: | The Erentaolegai large-sized independent Ag deposit in Inner Mongolia occurs in the vol-canic-subvolcanic rocks consisting mainly of andesite and basalt. The orebodies occur along the fault structure, with the major ones distributed within an area measuring about 10 km in length from south to north and 1. 5 km in width from east to west. With the exception of Ag, other asso-ciated metals such as Pb, Zn, Mn are of no commercial importance. Up to now, more than twenty independent Ag minerals have been identified in the deposit, which are chiefly associated with pyrite, rhodocrosite and minor amounts of galena and sphalerite. Its geological features show that the deposit postdated its country rocks. Geochemical evidence indicates that the ore deposit is a re-worked-type epigenetic Ag deposit with igneous rocks (volcanic-subvolcanic rocks) as the source rocks. |
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| Keywords: | independent Ag deposit metallogenesis geochemical mark |
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