黄沙铀矿区221铀矿床微量、稀土元素地球化学特征及其意义  

Geochemical Characteristics of Trace Elements and Its Significance in Uranium Deposit 221,Huangsha Uranium Ore District

作　　者：牟平[1] 潘家永[1] 黄广文[1] 钟福军 刘涛涛[1] 孟华[1] MOU Ping;PAN Jia-yong;HUANG Guang-wen;ZHONG Fu-jun;LIU Tao-tao;MENG Hua

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,南昌330013

出　　处：《科学技术与工程》2016年第29期27-33,40,共8页Science Technology and Engineering

基　　金：中国地质调查局典型矿集区潜力评价示范项目(12120115035601);江西省研究生创新专项资金(YC2016-B074)项目联合资助

摘　　要：221铀矿床位于黄沙铀矿区中部,其深部及外围具有一定的找矿前景。系统采集矿床坑道内矿石及围岩样品,对矿床微量元素、稀土元素地球化学特征及其与铀成矿的内在联系进行了深入探讨。研究表明,矿石与围岩中微量元素的分类明显不同,相关性上也有较大差异。与该矿床铀迁移、富集密切相关的元素有Sc、Ni、Y、Nb、Sr、Cs、Pb等高场强元素。稀土元素特征显示铀成矿物质来源具有上、下地壳混合的特点,成矿流体具有幔源性质。Uranium deposit 221 is located in the middle of the Huangsha uranium ore distric -t,The piuton is believed to have certain exploration potential in its deep and the rock around. On the base of systemic collection the ore and wall rocks samples in tunnels. The geochemical chara -cteristics of trace elements and rare earth elements and the intrinsic realtionto uranium mineraliz- ation had in-depth discussed. Research shows that the trace elements classification in the ore and wall rocks is obvious defferent, the relativity between each elements alsohas bigger defferent.And some high field intensity elements like S c , Ni, Y , N b ,S r,C s,P b are closely related to the uranium migration and enrichment of the ore deposit. The characteristics ofthe rareelement suggest that uranium metallogenic material has the feature of the upper and lower crust mixed,and the ore-forming fluid has the nature of the mantle source.

关 键 词：铀矿床 地球化学 成矿物质 成矿流体 

分 类 号：P595[天文地球—地球化学]