摘要
缅甸栗板纳辛古金矿大地构造位于密支那-实皆板块结合带,出露元古界抹谷群地层,区内构造简单,岩浆岩及围岩蚀变强烈。金矿体产于一系列北东及近南北向断裂带中或充填于断裂旁侧层间张性裂隙中,金矿石呈碎斑、蚀变粒状结构,松散侵染状构造。矿物以氧化物、硫化物为主,石英及黄铁矿是金的载体矿物,硅酸盐矿物主要为少量云母和高岭石,硫酸盐和碳酸盐矿物含量微弱。
The paleo gold structure of libanaxin gold mine in Myanmar is located in the joint zone of Myitkyina and Sagaing plates,showing the strata of Mogu group of Proterozoic,with simple structure,strong alteration of magmatic rock and surrounding rock.The gold ore body occurs in a series of NE and nearly NS trending fault zones or is filled in the interlayer tensile fractures beside the fault.The gold ore is in the form of cataclasis,altered granular structure and loose infection structure.Minerals are mainly oxides and sulfides,quartz and pyrite are carrier minerals of gold,silicate minerals are mainly mica and kaolinite,and sulfate and carbonate minerals are weak.
作者
罗云平
田犁平
LUO Yun-ping;TIAN Li-ping(Team 306,Yunnan nonferrous Geology Bureau,Kunming 650000,China)
出处
《世界有色金属》
2019年第22期95-96,共2页
World Nonferrous Metals
关键词
金矿
矿区地质
矿物特征
缅甸
gold mine
mining area geology
mineral characteristics
Myanmar
