| 邹家山铀矿床伴生重稀土元素的赋存特征 |
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| 引用本文： | 王运,胡宝群,王倩,李佑国,孙占学,郭国林.邹家山铀矿床伴生重稀土元素的赋存特征[J].吉林大学学报(地球科学版),2018(3):719-735. |
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| 作者姓名： | 王运 胡宝群 王倩 李佑国 孙占学 郭国林 |
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| 作者单位： | 成都理工大学地球科学学院,成都610059;东华理工大学放射性地质与勘探技术国防重点学科实验室,南昌 330013;江西省煤田地质勘察研究院,南昌 330001
东华理工大学放射性地质与勘探技术国防重点学科实验室,南昌,330013
东华理工大学放射性地质与勘探技术国防重点学科实验室,南昌 330013;内蒙古赤峰地质矿产勘查开发院,内蒙古 赤峰024000
成都理工大学地球科学学院,成都,610059 |
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| 基金项目： | 国家自然科学基金项目(41472069)，江西省科技厅项目(20152ACB20015)Supported by National Nature Science Foundation of China(41472069)，Major Program for the Natural Science Foundation of Jiangxi Province(20152ACB20015) |
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| 摘 要： | 初步研究发现,相山矿田邹家山矿床中伴生有较高的重稀土元素,回收这些珍稀的资源和探索其成因具有重要的意义,而查明这些伴生稀土在铀矿床中的赋存特征是前期基础性工作。为此本文采用电子探针和激光剥蚀电感耦合等离子体质谱分析了邹家山铀矿床中稀土元素的赋存状态。结果显示:该矿床稀土矿物主要为独居石、氟碳钙铈矿和磷钇矿;独居石、氟碳钙铈矿的LREE/HREE1,为轻稀土富集型;而磷钇矿的LREE/HREE1,为重稀土富集型。沥青铀矿、钛铀矿、铀钍石、铀石、钍石、锆石等铀钍矿物的稀土特征为重稀土富集型;铀钍矿物稀土总量(∑REE+Y)较高,为(3 805.78~65 307.00)×10~(-6),LREE/HREE1,为0.01~0.80,平均为0.29。其他伴生矿物磷灰石、钾长石为轻稀土富集型,萤石为轻、重稀土富集型两类都有,而伊利石、黄铁矿的轻重稀土无明显相对富集。重稀土在磷钇矿和铀钍矿物中以类质同象形式存在,少量赋存于伴生矿物。
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| 关 键 词： | 重稀土元素 铀矿物 赋存特征 电子探针 激光剥蚀电感耦合等离子体质谱仪 邹家山铀矿床 相山矿田 HREE uranium occurrence characteristics EPMA LA-ICP-MS Zoujiashan uranium deposit Xiangshan orefield |
Occurrence Characteristics of HREE in Zoujiashan Uranium Deposit |
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| Wang Yun,Hu Baoqun,Wang Qian,Li Youguo,Sun Zhanxue,Guo Guolin.Occurrence Characteristics of HREE in Zoujiashan Uranium Deposit[J].Journal of Jilin Unviersity:Earth Science Edition,2018(3):719-735. |
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| Authors: | Wang Yun Hu Baoqun Wang Qian Li Youguo Sun Zhanxue Guo Guolin |
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| Abstract: | In a preliminary study,we found an amount of HREE in Zoujiashan uranium deposit as associated ores.To recycle these rare resources and explore their origin are very important.The basic work is to find out the characteristics of HREE associated in Zoujiashan uranium deposit.To do so,we used the electron probe micro-analyzer (EPMA) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) to analyze their occurrence characteristics.The results show that the deposit contains mainly monazite,roentgenite,and xenotime.The LREE/HREE ratios of the monazite and roentgenite are high,a LREE enrichment type;While the LREE/HREE ratio of the xenotime is low,a HREE enrichment type.The minerals of uranium and thorium including pitchblende,brannerite,uranothorite,coffinite,thorite and zircon are of the type of HREE enrichment.Their total REE (ΣREE +Y) is high with a range of (3 805.78-65 307.00) × 10-6,their value of LREE/HREE is low with a range of 0.01-0.80,and the average is at 0.29.The other associated minerals,including apatite and potassium feldspar,are of the LREE enrichment type,while the fluorite is of the both types.Both LREE and HREE enrichment in the illite and pyrite are not significant.The HREE exists mainly in the form of isomorphism in the minerals of xenotime,uranium,and thorium,and a small amount of HREE is in the associated minerals. |
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