| 湖南省桑植县油坊萤石矿床成矿地质条件 |
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| 引用本文： | 闰友谊.湖南省桑植县油坊萤石矿床成矿地质条件[J].化工矿产地质,2014(4):221-224. |
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| 作者姓名： | 闰友谊 |
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| 作者单位： | 中化地质矿山总局湖南地质勘查院,湖南长沙410004 |
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| 摘 要： | 桑植县油坊萤石矿位于扬子准地台边缘,是一典型的小而富的低温热液充填型矿床。矿体主要由压扭性断裂控制,与围岩含Ca质有关,围岩界限清晰。矿体呈透镜脉状、似层状或扁豆状,矿石质量好,Ca F2含量高。该矿床广泛存在围岩蚀变作用,表现有硅化、绢云母化、黄铁矿化、碳酸盐化。该类型萤石矿床有明显的找矿标志。
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| 关 键 词： | 台地边缘 矿源层 导矿构造 含矿热液 油坊萤石矿 |
YOUFANG FLOURITE DEPOSIT ORE-FORMING GEOLOGIC CONDITION IN SANGZHI COUNTY,HUNAN PROVINCE |
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| Institution: | Yan Youyi( Hunan Geological Exploration Institute Of China Chemical Geology And Mine Bereau, Changsha, Hunan, 410004) |
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| Abstract: | Youfang fluorite deposit in Sangzhi County located on the margin of the Yangzi paraplatform is a typical small but rich postmagmatic mesothermal deposit. Orebody is controlled by compressoshear breaking and has relationship with surrounding rock containing Ca which has clear boundaries with surrounding rock. The ore body presents lentoid-vein, stratoid or flatschig in shape. Ore quality is good with high content of CaF2. Wall-rock alteration extensively exists in this deposit, presenting silicification, sericitize, pyritization and carbonation. There are obvious prospecting criteria in this type deposit. |
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| Keywords: | platform margin source bed passage of ore fluid ore-bearing thermal fluid Youfang fluorite ore |
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