云南腾冲市大钟谷矿区两种钽矿特征及成因浅析  

THE FEATURE AND A PRELIMINARY GENESIS ANALYSIS OF 2 TA DEPOSITS IN DAZHONGGU OREFIELD IN TENGCHONG,YUNNAN

作　　者：齐永荣 QI Yong-rong(Yunnan Mingyu Mining Company(Ltd),Kunming 650011)

机构地区：[1]云南明宇矿业有限公司,云南昆明650011

出　　处：《云南地质》2018年第1期78-83,共6页Yunnan Geology

摘　　要：云南腾冲大钟谷矿区存在两种不同类型的钽矿。一种为碱性长石花岗岩型钽矿床,矿体呈层状、透镜状赋存于花岗岩体与下古生界高黎贡山群(Pt1gl)之间的构造破碎带中;另一种为砂矿,属喜马拉雅期花岗岩风化壳型钽矿床,该类型钽矿体呈面状分布。There are 2 different Ta deposits in Dazhonggu orefield in Tengchong,Yunnan.One type of them is the alkali feldspar granite Ta orebody,bedded,lenticular in the structural fracture zone between granite body and Lower Paleozoic Gaologongshan Group(Pt 1gl)Another one is the placer,belonging to Himalayan weathering crust Ta deposit,which is in planar distribution.

关 键 词：风化壳矿床 碱性长石花岗岩矿床 云南腾冲大钟谷 

分 类 号：P618.86[天文地球—矿床学]