松辽盆地白兴吐铀矿床热液蚀变及物质组成研究  

The hydrothermal alteration and mineral composition of Baixintu uranium deposit in Sonliao basin

作　　者：吴仁贵[1] 蔡建芳[2] 于振清[2] 宫文杰[2] 徐喆[1] 宁君[2] 

机构地区：[1]东华理工大学核资源与环境教育部重点实验室,江西南昌344000 [2]核工业243大队,内蒙古赤峰024000

出　　处：《铀矿地质》2011年第2期74-80,共7页Uranium Geology

基　　金：松辽盆地宝龙山地段砂岩型铀矿矿石物质组成及矿床成因探讨(东华理工大学核资源与环境教育部重点实验室);中国中新生代铀成矿作用(核科技项目)

摘　　要：显微镜下矿石薄片鉴定和铀矿物电子探针分析显示,白兴吐铀矿床发育高岭石化、碳酸盐化、黄铁矿化、水云母-绢云母化和赤铁矿化等中低温热液蚀变;矿石的铀矿物主要为铀石,少量沥青铀矿,以及部分含钛铀矿物,矿石普遍富含磷和钛。铀矿物与热液成因的胶状、团块状和莓状黄铁矿、铁白云石、赤铁矿等共生。这些特征表明,该矿床的工业铀矿化与热液作用关系密切。Thin section feature and electronic probe analysis of rocks show that middle-low temperature hydrothermal alteration has been developed in Baixintu uranium deposit,the alteration includes kaolinization,carbonatation,pyritization,hydromicazation,sericitization,hematization et.al.The uranium mineral of ore is maily coffinite,a little pitchblende and titanous uranium mineral and the ore is generally rich in phosphorus and titanium.Because uranium mineral coexists with colloidal,clumpy and fragiform pyrite and ankerite and hematite of alteration,it is suggested that the profitable uranium mineralization is closely related to hydrothermal process.

关 键 词：矿物组成 热液蚀变 白兴吐铀矿床 

分 类 号：P611[天文地球—矿床学]