| 甘肃省礼县上坝金矿床载金矿物特征及其矿床成因 |
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| 引用本文： | 康喜逢,蒙轸.甘肃省礼县上坝金矿床载金矿物特征及其矿床成因[J].甘肃地质学报,2009(2):35-40. |
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| 作者姓名： | 康喜逢 蒙轸 |
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| 作者单位： | 甘肃省地矿局第二地勘院; |
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| 摘 要： | 礼县上坝金矿床是甘肃省近年来在南秦岭微板块发现的矿体规模较大、主要赋矿岩石为硅质岩、氧化带深度大、矿石可浸出性好、金成色高的岩金矿床。通过对上坝金矿床矿石组构、矿物共生组合及载金矿物特征研究发现：金矿物主要为自然金、银金矿、金银矿。载金矿物主要为石英。褐铁矿、粘土矿物和少量碳质矿物也含金。金的赋存形式为粒间金和裂隙金。金矿物的形成富集与硅化一硫化物交代充填作用关系密切，矿床成因为低温热液型金矿床。
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| 关 键 词： | 上坝 金矿床 载金矿物 赋存状态 成因 |
CHARACTERISTICS AND GENESIS SIGNIFICANCE OF THE
GOLD-BEARING MINERALS OF SHANGBA GOLD
DEPOSIT IN LIXIAN COUNTY, GANSU PROVINCE |
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| KANG Xi-feng and Meng Zhen.CHARACTERISTICS AND GENESIS SIGNIFICANCE OF THE
GOLD-BEARING MINERALS OF SHANGBA GOLD
DEPOSIT IN LIXIAN COUNTY, GANSU PROVINCE[J].Acta Geologica Gansu,2009(2):35-40. |
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| Authors: | KANG Xi-feng and Meng Zhen |
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| Institution: | No.2 Geology and Mineral Exploration Team;Gansu Provincial Bureau of Geology and Mineral Exploration and Development;Lanzhou 730020;China |
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| Abstract: | Shangba gold deposit of Lixian County is a rocklype gold deposit found recent years in microplate of south Qinling of Gansu Province,which has large scale,principal host rocks to be silicate,great oxidation zone depth,good leachability and high fineness of gold.According to the study of Shangba gold deposit on its ore fabric,mineral assemblage and gold-bearing minerals,the author finds that the main gold minerals are native gold,electrum and kustelite.Moreover,the main gold-bearing minerals are quartz,limon... |
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| Keywords: | Shangba gold deposit gold-bearing mineral mode of occurrence genesis |
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