| 论湖南石门雄黄矿区矿化角砾岩成因类型 |
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| 引用本文： | 熊先孝.论湖南石门雄黄矿区矿化角砾岩成因类型[J].地质论评,1997,43(5):483-489,T001. |
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| 作者姓名： | 熊先孝 |
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| 作者单位： | 化学工业部化学矿产地质研究院 河北涿州 |
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| 摘 要： | 湖南石门界牌峪地区雄黄矿床中伴有各类化角砾岩。它们互不相连,外观圆形,有的聚集成群或呈完全弧立的山包,与围岩多呈刺穿状接触,角砾岩胶结物中微量元素同该区现代热泉体系沉积物类似,成矿溶液和角砾岩胶结物包裹体成分富Ｎａ＾＋,Ｃａ＾２＋,Ｃｌ＾－,ＨＣＯ＾－３和ＳＯ６２－４,也与该区现代热泉水成分相似。
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| 关 键 词： | 雄黄矿床 矿化 角砾岩 成因类型 |
ON THE GENETIC CLASSIFICATION OF MINERALIZED BRECCIAS IN THE SHIMEN REALGAR ORE DISTRICT, HUNAN PROVINCE |
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| Xiong Xianxiao.ON THE GENETIC CLASSIFICATION OF MINERALIZED BRECCIAS IN THE SHIMEN REALGAR ORE DISTRICT, HUNAN PROVINCE[J].Geological Review,1997,43(5):483-489,T001. |
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| Authors: | Xiong Xianxiao |
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| Abstract: | In the Jiepaiyu realgar ore district,Shimen County,Hunan Province,there exist a number of mineralized breccias, which occur either in groups or as isolated steep ridges or hills. They usually take elliptical or isometrical forms at surface and conical or cylindrical forms branching upward in section, and are mostly in piercing contact with country rocks. Trace elements in cements of the breccias are similar to those in sediments from modern hot springs; the components of ore-forming fluids and inclusions in breccias enriched in Na+ ,Ca2+ ,Cl- ,HCO3- and SO42- are also similar to those of modern spring waters in the area. Petrological, petrochemical and trace element and REE geochemical studies indicate that the mineralized breccias in the area were formed a result of drastic explosions of hot spring gases and related substance under the sealed and reduced conditions. There are four genetic types of mineralized breccia related to realgar deposits in the Jiepaiyu area,i. e. "intrusive",explosive ,karst and collapse breccias. The superposition of various breccias is quite conspicuous. They are good ore-hosting and -controlling bodies and hence have important significance for ore prospecting. |
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| Keywords: | realgar deposit mineralized breccias Shimen Hunan |
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