贵州织金含稀土磷块岩中稀土元素赋存状态研究  

Occurrence of Rare Earth Elements in Rare-earth Phosphorite in Zhijin, Guizhou

作　　者：王安琪[1] 张杰[2] 杨林[1] WANG An-qi;ZHANG Jie;YANG Lin(Guizhou Central Laboratory of Geology and Mineral Resources,Guiyang 550018,China;College of Mining,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州省地质矿产中心实验室,贵州贵阳550018 [2]贵州大学矿业学院,贵州贵阳550025

出　　处：《稀土》2019年第4期40-46,共7页Chinese Rare Earths

基　　金：贵州省国土资源厅找矿战略行动计划[2016-09-2]

摘　　要：根据贵州织金磷块岩化学成分与矿物组成分析,制定了化学物相分析实验,定量分析了贵州织金白云质磷块岩和硅质磷块岩中稀土元素的赋存状态。结果表明,白云质磷块岩稀土元素主要赋存于胶磷矿中,胶磷矿中稀土分配量为97.17%,碳酸盐矿物中稀土分配量为1.82%,稀土集中系数为98.99%。硅质磷块岩稀土元素主要赋存于胶磷矿中,胶磷矿中稀土分配量为88.35%,硅酸盐相(伊利石)矿物中稀土分配量为7.28%,表明稀土元素主要赋存于胶磷矿中,其次为硅酸盐相(伊利石)矿物内,稀土集中系数为95.63%。Based on the analysis of the chemical compositions and mineral components of the phosphorite in Zhijin,Guizhou,the chemical phase analysis experiment was made and the occurrence state of the rare earth elements in the dolomitic and siliceous phosphorite of Zhijin,Guizhou,was quantitatively analyzed.The results showed that rare earth elements of dolomitic phosphorite mainly occurred in collophane.The distribution of REE in collophane is 97.17%,REE distribution in carbonate minerals is 1.82%,and the rare-earth concentration factor in two phases is 98.99%.Rare earth elements in siliceous phosphorite mainly occurred in collophane.The distribution of rare earth is 88.35%in collophane and 7.28%in the silicate(illite)minerals.The concentration coefficient of rare earth elements in two phases is 95.63%.

关 键 词：贵州织金 含稀土磷块岩 稀土元素赋存状态 化学物相分析 

分 类 号：P618.7[天文地球—矿床学]