盈江县旧城地区离子吸附型稀土矿特征及控矿条件  

THE FEATURE AND ORECONTROL CONDITION OF IONIC ADSORPTION REE DEPOSIT IN OLD TOWNSHIP AREA OF YINGJIANG

作　　者：邓志祥 燕利军 佘中明 DENG Zhi-xiang;YAN Li-jun;SHE Zhong-ming(Yunnan Institute of Geological Survey,Kunming 650216;Yunnan Management Center of Geological Survey Foundation,Kunming 650224)

机构地区：[1]云南省地质调查院,云南昆明650216 [2]云南省地质勘查基金管理中心,云南昆明650224

出　　处：《云南地质》2021年第3期345-350,共6页Yunnan Geology

基　　金：云南省1:5万盈江县旧城梁河街河头村矿产地质调查(项目编码:D201716)。

摘　　要：云南盈江旧城地区地处滇西亚热带温热环境,出露了大面积的稀土元素背景值较高的古近纪二长花岗岩体,岩体经过长期的表生成矿作用,形成了多处风化壳离子吸附型稀土矿。通过实施的取样钻、槽探等工程控制,可以看出盈江地区的稀土矿体,主要赋存于古近纪花岗岩体风化壳底部之半风化层上部,矿化分布较广泛,其潜在资源远景规模达大型或超大型。Yingjiang area of Yunna2n is in the subtropic warm area,with a lot of outcropping Palaeogene adamellite bodies of high REE background.Many weathering crust ionic adsorption REE deposits are formed because of the epigenetic metallogenesis in a long term.According to the sampling drill and trenching,the most REE deposits in Yingjiang area are widely distributed in the upper part of granite paraweathering crust,the potential scale is large or super-large.

关 键 词：离子吸附型稀土矿 表生作用 控矿条件 云南盈江 

分 类 号：P618.7[天文地球—矿床学]