| 赣南崇义淘锡坑钨矿床氢、氧、硫同位素地球化学研究 |
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| 引用本文：宋生琼,胡瑞忠,毕献武,魏文凤,石少华.2011.Hydrogen，oxygen and sulfur isotope geochemical characteristics of Taoxikeng tungsten deposit in Chongyi County，Southern Jiangxi Province[J].Mineral Deposits,30(1):1~10 |
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| 基金项目:本文得到国家自然科学基金重点项目(40634020)和国家973项目(2007CB411408)的联合资助 |
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| 中文摘要:赣南崇义县淘锡坑钨矿位于南岭东西向构造带东段与武夷山NE-NNE向构造带南段的复合部位，属于以石英脉型黑钨矿为主的钨多金属矿床。文章通过氢、氧、硫同位素地球化学特征的研究，探讨了淘锡坑钨矿成矿流体的来源及演化。研究结果显示：δD 值介于-77‰～-45‰之间；石英矿物的δ 18O值介于+7.3‰～+12.2‰之间，计算给出石英中水的δ 18OH2O值介于-3.1‰～1.2‰之间。黄铁矿的δ 34S值分布于0.1‰～-2.1‰之间，黄铜矿的δ 34S值分布于-1.3‰～-2.3‰，毒砂的δ34S值分布于-1.4‰～-1.8‰之间。研究结果表明：淘锡坑钨矿床主成矿期成矿流体显示两种流体混和的特征，成矿流体中的硫主要为岩浆来源。 |
| 中文关键词:地球化学 氢氧硫同位素组成 淘锡坑钨矿 赣南 |
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| Hydrogen，oxygen and sulfur isotope geochemical characteristics of Taoxikeng tungsten deposit in Chongyi County，Southern Jiangxi Province |
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| Abstract:The Taoxikeng tungsten deposit in Chongyi County of southern Jiangxi Province is mainly a quartz vein-type polymetallic tungsten deposit. Based on hydrogen, oxygen and sulfur isotopic characteristics, this paper studied the origin and evolution of the ore-forming fluid. The results show that δD values of fluids from fluid inclusions in quartz vary from -77‰ to -45‰, δ18O values of quartz from the ore change from +7.3‰ to +12.2‰, δ18OH2O values range from -3.1‰ to 1.2‰, δ34S values of pyrite from the ore range from 0.1‰ to -2.1‰, δ34S values of chalcopyrite from the ore range from -1.3‰ to -2.3‰, and δ34S values of arsenopyrite from the ore range from -1.4‰ to -1.8‰. Hydrogen and oxygen isotopic composition of the fluid inclusions in quartz of the major ore-forming stage indicates that the water was derived mainly from mixed meteoric and magmatic water, whereas sulfur isotopes in ore-forming fluid were derived mainly from the magma. |
| keywords:geochemistry, hydrogen, oxygen and sulfur isotopic compositions, Taoxikeng tungsten deposit, southern Jiangxi Province |
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