白云鄂博矿区富钾板岩中稀土铌矿物特征研究*

现代矿业 ›› 2020, Vol. 36 ›› Issue (06): 124-.

白云鄂博矿区富钾板岩中稀土铌矿物特征研究*

金海龙^1,2王其伟^1,2王振江^1,2魏威^1,2

1.白云鄂博稀土资源研究与综合利用国家重点实验室；2.包头稀土研究院

出版日期:2020-06-25 发布日期:2021-09-15

Study on Rare Earth and Niobium Mineralogical Characteristics of Potassiumrich Slate in Bayan Obo Mine

Jin Hailong ^1,2Wang Qiwei ^1,2 Wang Zhenjiang ^1,2Wei Wei^1,2

1.State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization;
2.Baotou Research Institute of Rare Earths

Online:2020-06-25 Published:2021-09-15

摘要/Abstract

摘要： 采用主要化学成分分析、自动矿物分析系统、偏反光显微镜、场发射扫描电镜、能谱仪等手段对白云鄂博矿区内富钾板岩化学成分、矿物组成以及稀土铌矿物特征等方面进行研究。结果显示，白云鄂博矿区内富钾板岩K2O含量高达13.15%，高SiO2富Al2O3，岩石主要由微斜长石与黑云母组成；富钾板岩中REO与Nb2O5含量分别为0.076%、0.012%，稀土、铌矿物含量低且粒度细小，形态产状多种多样，矿物共生组合与接触关系复杂，指示富钾板岩遭受了后期热液的蚀变改造作用。

关键词: 矿物特征稀土铌矿物富钾板岩白云鄂博矿区

Abstract: The major chemical composition,mineral composition and rare earthniobium mineral characteristics of Potassiumrich slate in Bayan Obo Mine were studied by means of multielement chemical analysis,automatic mineral analysis system,partial reflection microscope,field emission scanning electron microscope and energy spectrometer.The results show that the K2O content in the Potassiumrich slate in Bayan Obo Mine is up to 13.15%,and the content of SiO2 and Al2O3 is high.The rock is mainly composed of microcline and biotite.The content of REO and Nb2O5 in Potassiumrich slate is 0.076% and 0.012%,rare earth minerals and niobium minerals have low content,fine particles,diverse morphology and occurrence,complex mineral association and contact relationship,indicating that the Potassiumrich slate has suffered the late hydrothermal alteration and transformation.

Key words: Mineralogical characteristics,Rare earth and niobium minerals,Potassiumrich slate,Bayan Obo Mine

金海龙, 王其伟, 王振江, 魏威, . 白云鄂博矿区富钾板岩中稀土铌矿物特征研究*[J]. 现代矿业, 2020, 36(06): 124-.

Jin Hailong, Wang Qiwei, Wang Zhenjiang, Wei Wei, . Study on Rare Earth and Niobium Mineralogical Characteristics of Potassiumrich Slate in Bayan Obo Mine[J]. Modern Mining, 2020, 36(06): 124-.

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