豫西太平镇稀土矿床稀土元素赋存状态研究  

REE Occurrence of Taipingzhen REE Deposit in Western Henan Province

作　　者：陈化凯 张盼盼 李靖辉 温国栋 范光 Chen Huakai;Zhang Panpan;Li Jinghui;Wen Guodong;Fan Guang(Henan Province Nuclear Geology,Zhengzhou 450044,China;Analytical Laboratory Beijing Research Institute of Uranium Geology,Beijing 100029,China)

机构地区：[1]河南省核工业地质局,河南郑州450044 [2]核工业地质分析测试研究中心,北京100029

出　　处：《中国稀土学报》2020年第4期573-582,I0004,共11页Journal of the Chinese Society of Rare Earths

基　　金：河南省国土资源厅两权价款地质科研项目(豫国土资函[2016]106号)资助。

摘　　要：豫西太平镇稀土矿床位于北秦岭造山带东段北部,是以Ce,La,Nd,Pr为主的轻稀土矿床。具有富轻稀土低重稀土的特点,且Ce>La>Nd>Pr。目前发现的稀土矿物主要是稀土独立矿物,主要有氟碳铈矿、钙稀土氟碳酸盐多体矿物、直氟碳钙铈矿、褐帘石、独居石、氟镧矿、羟硅铈矿、太平石等,这些稀土矿物以集合体的形式紧密共生。研究表明,矿石稀土矿物主要是氟碳铈矿,其约占稀土矿物总量的90%左右,其他稀土矿物约占10%左右。稀土元素主要赋存于氟碳铈矿中,有少量赋存于褐帘石、钙稀土氟碳酸盐多体矿物、直氟碳钙铈矿、独居石等矿物中。The Taipingzhen REE deposit is a newly discovered rare earth deposit in the east of North Qinling Orogen,western Henan province.It is a light rare earth deposit with the characteristics of rich light rare earth(mainly containing Ce,La,Nd and Pr)and poor heavy rare earth,and Ce>La>Nd>Pr.At present,the ore minerals discovered in the Taipingzhen REE deposit are mainly rare earth independent minerals,and include bastnasite-(Ce),Ca-REE fluorocarbonate polysomes,synchysite-(Ce),allanite-(Ce),monazite-(Ce),fluocerite-(La),tornebohmite-(Ce),Taipingite-(Ce),all of which are closely associated in the form of aggregates.The study shows that the main REE mineral is bastnasite-(Ce),accounting for 90%of the total REE minerals,and other minor rare earth minerals are allanite-(Ce),Ca-REE fluorocarbonate polysomes,synchysite-(Ce),monazite-(Ce),and other REE minerals.

关 键 词：北秦岭造山带 稀土矿床 赋存状态 氟碳铈矿 太平镇 

分 类 号：P575[天文地球—矿物学]