| 相山矿田热液水云母化及其与铀矿化关系研究 |
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| 引用本文：.2000.Relationship between hydromicatization and uranium mineralization in the Xiangshan orefield[J].Mineral Deposits,19(3):257~264 |
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| 基金项目:核工业行业基金资助项目（编号：地铀9607） |
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| 中文摘要:相山铀矿田广泛发育热液水云母化，且水云母以伊利石、蒙皂石混层矿物居多。对典型矿床围岩、蚀变岩石和矿石中粘土组成的定量分析和化学成分分析表明：随着U元素的逐渐富集，粘土矿物存在蒙皂石-伊利石、蒙皂石混层矿物一伊利石的转化过程，而且这一转化过程在本区是一个动态的平衡过程，这一研究结果很好解释了相山矿田以群脉型矿床为主的特征：蚀变岩石中高蒙皂石含量的粘土矿物为后期形成富大铀矿起了富集U的作用。 |
| 中文关键词:相山铀矿田, 水云母化, 伊利石、蒙皂石混层矿物, 铀成矿作用 |
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| Relationship between hydromicatization and uranium mineralization in the Xiangshan orefield |
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| Abstract:The Xiangshan uranium orefield in Jiangxi Province is the largest volcanogenic hydrothermal uranium orefield in China. There are m ore than twenty uranium deposits in this area. Hydromicatization is the basic and important alteration in the Xiangshan orefield. X- ray diffraction quantitative identification of clay minerals shows that the transformation from smectite toillite accompanied the uranium mineralization, and illite/smectite mixed-layer minerals concent rated uranium for furthe ruranium precipitation. The transformation process from smectite to I/S to illite is a dynamic equilibrium process. The termination of transformation from smectite to illite in I/S mixed-layer minerals accounts for the fact that the Xiangshan uranium orefield is characterized by vein deposits. |
| keywords:Xiangshan uranium orefield, hydromicatization, I/S mixed- layer mineral, uranium mineralization |
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