| 下坂金矿床地质特征及找矿预测 |
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| 引用本文： | 方进国.下坂金矿床地质特征及找矿预测[J].矿产与地质,2006,20(2):133-137. |
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| 作者姓名： | 方进国 |
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| 作者单位： | 福建省双旗山金矿,福建,德化,362500 |
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| 摘 要： | 下坂金矿床位于闽中金矿带,是产于侏罗系火山岩展布区,与次火山岩有关的浅成低温热液型金矿床。金矿体主要产于流纹斑岩的边缘条带相及与之毗邻的隐爆角砾岩中。矿石的矿物组成简单,属少硫化物型矿石,黄铁矿为主要载金矿物,与金矿化有关的热液蚀变作用是硅化、绢云母化和黄铁矿化。矿化富集与流纹斑岩的边缘条带相隐爆角砾岩、硅帽及裂隙发育程度关系密切。
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| 关 键 词： | 金矿床 找矿预测 地质特征 下坂 福建 |
| 文章编号： | 1001-5663（2006）02-0133-05 |
| 收稿时间： | 2005-09-11 |
| 修稿时间： | 2005年9月11日 |
Geological characteristics of the Xiaban gold deposit and its ore prediction |
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| FANG Jin-guo.Geological characteristics of the Xiaban gold deposit and its ore prediction[J].Mineral Resources and Geology,2006,20(2):133-137. |
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| Authors: | FANG Jin-guo |
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| Institution: | Fujian Shuangqishan Gold Mine, Dehua, Fujian 362500, China |
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| Abstract: | The Xiaban gold deposit is located in centre Fujiang gold ore belt,occurring in Jurassic high volcanic rock distribution area,as epithermal type gold deposit associated with sub-volcanic rock..The gold orebodies mostly occur in the margin bedding phase of rhyolite porphyry and the adjacent cryptaexplosion breccia.The mineral compositions of the ore are simple,which is sulphide type ore with pyrite as a main gold carrying mineral and silicification,sericification and pyritization are the hydrothermal alterations associated with gold mineralization.Mineral accumulation is closely related with the cryptaexplosion breccia on the margin bedded phase of rhyolite porphyry,siliceous cap and fissure development. |
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| Keywords: | gold deposit ore prediction geological characteristics Xiaban Fujian |
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