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石人嶂钨矿床放射性矿物的赋存状态及成分特征
引用本文:朱文凤,韦龙明,杨国高,郭威敏,刘芳.石人嶂钨矿床放射性矿物的赋存状态及成分特征[J].桂林工学院学报,2012(1):14-19.
作者姓名:朱文凤  韦龙明  杨国高  郭威敏  刘芳
作者单位:1. 桂林理工大学有色金属及材料加工新技术教育部重点实验室
2. 桂林理工大学广西隐伏金属矿产勘查重点实验室,广西桂林541004
3. 广西有色金属集团公司,南宁530022
基金项目:国家深部探测计划专项(SinoProbe-03-01-03C);广西地质工程中心重点实验室基金项目(桂科能07109011-Z003);广西地质工程中心重点实验室建设项目(11-031-20);广西大型仪器协作共用网资助项目
摘    要:石人嶂钨矿床中石英钨矿脉、花岗岩和变质岩中均发现有一定量的放射性矿物,经显微镜下鉴定初步确定为晶质铀矿、钍石、方钍石,部分与黄铁矿连生或被黄铁矿包围构成环边,部分以自形晶与独居石、锆石、钛铁矿、磁铁矿、磷钇矿等副矿物共生,有些还受力破碎错位。对所发现矿物进行扫描电镜能谱分析,其中晶质铀矿含量(W。)UO,86.38%-100%,ThO20-11.88%;而锆石除含Si02(28.76%-33.49%)、Zr02(58.11%-67.28%)和Hf02(0.25%-5.24%)外,还含少量U03(0-5.05%)。

关 键 词:晶质铀矿  钍石  方钍石  成分  石英脉钨矿床  石人嶂  广东

Occurrence and Composition Characteristics of Radioactive Minerals in Shirenzhang Tungsten Deposit
ZHU Wen-feng,WEI Long-ming,YANG Guo-gao,GUO Wei-minTM,LIU Fang.Occurrence and Composition Characteristics of Radioactive Minerals in Shirenzhang Tungsten Deposit[J].Journal of Guilin University of Technology,2012(1):14-19.
Authors:ZHU Wen-feng  WEI Long-ming  YANG Guo-gao  GUO Wei-minTM  LIU Fang
Affiliation:TM (1. a. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Educa- tion; b. Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin University of Technology, Guilin 541004, China; 2. Guangxi Nonferrous Metals of Group Company, Nanning 530022, China)
Abstract:Some radioactive minerals are found in quartz tungsten vein, granite and metamorphic rocks in Shirenzhang tungsten deposit. According to microscope analysis, there are uraninite, thorite and thorianite. Part of the intergrown surrounded by pyrite is euhedral crystal with minerals as monazite, zircon, ilmenite, mag- netite and xenotime. Some of them are broken and dislocated by force. By analysis of scanning electron micros- copy and energy dispersive spectrum, the crystalloid uranium contains UO3 86. 38% - 100%, ThO2 0 - 11.88%. The zircon contains UO3 0-5.05% besides SiO2 (28.76% -33.49%), ZrO2 (58. 11% - 67.28% ) and HfO2 (0. 25% -5.24% ).
Keywords:uraninite  thorite  thorianite  composition  quartz tungsten vein deposit  Shirenzhang  Guang-dong
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