| 615铀矿床蚀变和矿石特征 |
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| 引用本文： | 杨松,李子颖,李秀珍.615铀矿床蚀变和矿石特征[J].国外铀金地质,2011(2):71-78. |
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| 作者姓名： | 杨松 李子颖 李秀珍 |
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| 作者单位： | [1]中核抚州金安铀业有限公司,江西乐安344301 [2]核工业北京地质研究院,中核集团铀资源勘查与评价技术重点实验室,北京100029 |
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| 摘 要： | 提出615铀矿床侧缘蚀变的双层交代蚀变结构,即碱性流体交代之后叠加的酸性流体交代蚀变;强调在蚀变带中元素变化与蚀变岩石中矿物之间的相互关系;论述该矿床铀成矿是酸性流体叠加的结果;总结矿床经历了3次不同性质的热流体作用过程：即前期为富硫氢酸期,铀矿化期为氟化物、硫化物、磷酸盐、碳酸盐期和矿后富氧的简单流体作用期。
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| 关 键 词： | 碱性流体交代 酸性流体叠加 矿旁侧缘蚀变 双层结构 |
Alteration and ore features of uranium deposit No.615 |
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| Authors: | YANG Song LI Zi-ying LI Xiu-zhen |
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| Institution: | 1.Fuzhou Jin＇an Uranium Mine Co.Ltd,CNNC,Le＇an,Jiangxi 344301,China; 2.CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Technology, Beijing Research Institute of Uranium Geology,Beijing 100029,China) |
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| Abstract: | Double-layered metasomatized alteration texture at the lateral margin of uranium deposit No.615 is proposed,i.e.sodic fluid metasomatized alteration was superposed after alkali fluid metasomatism,the interrelationship between the element changes in the alteration zone and the minerals in the altered rock is emphasized and the uranium ore formation is the results of superposition of sodic fluid.It is summarized that the deposit experienced three phases of hydrotermal fluid process with different qualities,i.e.rhoanite-rich phases of earlier stage,uranium mineralizing phases with fluoride,sulfide,phosphate,carbonate and simple fluid phases with rich oxygen after ore formation. |
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| Keywords: | alkali fluid metasomatism sodic fluid superposition alteration lateral margin nearby the deposit double-layered texture |
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