摘要
利用化学检测分析、自动矿物分析、扫描电镜、微区能谱分析探讨了白云鄂博主、东矿云母型矿石中钍的赋存状态和分布规律。结果表明:主矿云母型矿石中含有一定量钍的独立矿物(钍石、铁钍石),东矿钍的独立矿物极少,钍主要以独立矿物的形式和类质同象的形式赋存于钍石、铁钍石和氟碳铈矿、独居石中;主、东矿云母型矿石中氟碳铈矿中Th O_2的平均含量比约为4∶1,独居石中Th O_2的平均含量比约为10∶1;查明主矿云母型矿石中77.79%的Th O_2分布于钍石、铁钍石、氟碳铈矿和独居石中,东矿云母型矿石中63%的Th O_2分布于氟碳铈矿和独居石中。
Using chemical analysis, automatic mineral analysis, scanning electron microscope and micro energy spectrum analysis, the occurrence and distribution of thorium in mica-type ore of main mine and East mine in Bay- anObo were discussed. The results showed that the Main Mine mica-type ore contains a certain amount independent minerals of thorium （thorite, ferrothorite）, the independent minerals of the thorium mine are rare in East Mine, and thorium is mainly in the form of independent mineral and isomorphism occurs in thorite, ferrothorite and bast- nasite, monazite ; In the Main Mine and East Mine mica-type ore, the average content of ThO2 in bastnasite of Main Mine is about 4：1 of the East Mine, and the average content of ThO2 in the monazite of the Main Mine is 10 times that of the East Mine ; It is found that 77.79% of ThO2 are distributed in the thorite, ferrothorite, bastnasite and monazite of mica-type ore in the Main Mine, 63% of the ThO2 are distributed in the bastnasite and monazite of mi- ca-type ore in the East Mine
作者
侯晓志
杨占峰
王振江
王晓燕
王文才
Hou Xiaozhi;Yang Zhanfeng;Wang Zhenjiang;Wang Xiaoyan;Wang Wencai(Institute of Mining Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;Baotou Rare Earth Research Institute,Baotou 014010,China;Inner Mongolia Fifth Geological Mineral Exploration Institute,Baotou 014010,China)
出处
《中国稀土学报》
CAS
CSCD
北大核心
2018年第5期633-640,共8页
Journal of the Chinese Society of Rare Earths
基金
北方稀土科技项目(BFXT-2015-D-0002)资助
关键词
白云鄂博矿
云母型矿石
钍
赋存状态
分布规律
Bayan Obo ore
mica-type ore
thorium
occurrence state
distribution law
