摘要
广西平南县马安肚稀土矿区位于钦州褶皱系六万大山凸起的北东部,华力西期酸性岩浆侵入花岗岩体风化壳内富集形成离子型稀土矿。离子吸附型稀土矿主要以离子吸附相形式赋存于花岗岩风化壳的全风化层中。文章主要从区域地质背景、矿床地质特征以及矿床成因分析等方面对风化壳离子吸附型稀土矿床进行论述,笔者认为离子吸附型稀土矿矿床的形成与母岩、气候、地貌、构造、风化壳的pH值等条件密切相关,总结出离子吸附型稀土矿矿床的成因机制和富集规律。
Ma'andu Rare Earth Mining Area in PingnanCounty,Guangxi is located in the northeast of Liuwandashan uplift of Qinzhou fold system,TheVariscan acid magma intruded into the weathering crust of granite body and enriched to form ionic rare earth ore.Ion-adsorbed rare earth minerals mainly exist in the fully weathered layer of granite weathering crust in the form of ion-adsorbed phase.This paper mainly discusses the weathering crust ion adsorption rare earth deposit from the regional geological background,geological characteristics and genetic analysis of the deposit,The author thinks that the formation of ion adsorption type rare earth ore deposit is closely related to parent rock,climate,landform,structure,pH value of weathering crust and other conditions,The genetic mechanism and enrichment law of ion adsorption rare earth ore deposits are summarized.
作者
徐勇
柳美军
XU Yong;LIU Mei-jun(The 307th Nuclear Geological Brigade of Guangxi Zhuang Autonomous Region,Guigang 537100,China)
出处
《世界有色金属》
2020年第16期73-75,共3页
World Nonferrous Metals
关键词
离子吸附稀土矿
地质特征
矿床成因
广西平南
Ion adsorption of rare earth ore
Geological characteristics
Genesis of deposit
Guangxi Pingnan
