邹家山铀矿床矿石中的重稀土富集特征  

Characteristics of Heavy REE Enrichment in Zoujiashan Uranium Ore-deposit

作　　者：王倩[1] 胡宝群[1] 邓声保 邱林飞[2] 孙占学[1] 李满根[1] 吕古贤[3] 

机构地区：[1]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,江西南昌330013 [2]核工业北京地质研究院,北京100029 [3]中国地质科学院地质力学研究所,北京100081

出　　处：《东华理工大学学报（自然科学版）》2015年第3期240-248,共9页Journal of East China University of Technology(Natural Science)

基　　金：国家自然科学基金(41472069;41172078;40862005);863计划(2012AA061504);973计划(2012CB723101);科技部国际合作项目(2011DFR60830)

摘　　要：江西相山铀矿田矿石中伴生高含量的重稀土资源。以邹家山矿床为例,通过成分分析,研究了铀矿石和矿体剖面中稀土元素的分布特征,为综合回收伴生重稀土提供基础数据。研究显示:铀富矿石中伴生高含量稀土(∑REE+Y),高者可达1%,平均可达0.322%。随着矿石中U含量的增高,稀土总量也相应增高。这些稀土为重稀土富集型,配分曲线为左倾型,且随着铀含量的增高左倾斜率越来越大。矿石中的轻稀土含量与围岩中的相近,重稀土含量则明显高于围岩。在围岩与矿石中,δEu均为明显的负异常,δCe无强烈异常,两参数值变化不大。总之,邹家山铀矿石伴生重稀土,具有综合回收意义。There is high levels of heavy rare earth elements( HREE) associated in uranium ores of Xiangshan orefield in Jiangxi province. Taking Zoujiashan ore-deposit for an example. The distribution characteristics of rare earth elements( REE) in uranium ore and ore body profile are researched by chemical analysis,and try to provide some basis data for comprehensive recovery of heavy rare earth associated in uranium ore are provided. The research has showed that there are high contents of rare earth elements associated in uranium ore( ∑REE + Y),high up to 1%,average content is 0. 322%. With the increase of U content,the total amount of rare earth elements is also increased in uranium ore. These REE are rich in HREE,have distribution curves with the left-leaning which slopes are increasing with the increased uranium content. The LREE content of uranium ore is similar to that in the surrounding rock,and the HREE content is obviously higher than that in the surrounding rocks. In the surrounding rocks and ores,δEu is obviously negative anomaly,δCe is not strong,and the both values change little. In short,there are abundant HREE associated in Zoujiashan uranium ore,and the comprehensive recovery of HREE is a meaningful thing.

关 键 词：重稀土 伴生资源 铀矿床 邹家山 

分 类 号：P619.14[天文地球—矿床学] P618.7[天文地球—地质学]