我国第一个大型红土型金矿床  

The first large gold deposit of red clay type in China

作　　者：李松生 

机构地区：[1]湖北省地质矿产局

出　　处：《黄金》1994年第4期1-3,共3页Gold

摘　　要：蛇屋山金矿是我国第一个大型红土型金矿床，矿体呈层状赋存于第四系网纹状红土，矿石松散，组分简单，金呈游离状态吸附于粘土矿物表面，在氰化物作用下立即析出，因此用堆淋法选矿饲，金的浸出率高达９６％。这种企矿的成矿物质来自含矿原岩，成矿作用与第四纪中更新世湿热条件下的化学风化作用有关，分散在原岩中的金，通过红土化作用被活化、迁移，在古潜水面附近富集成工业矿体。She-Wu-Shan Gold Deposit is the first large gold deposit of red clay type in China. Its orebody is stratified occurring in net veined red clay of quaternary system. Ores of this deposit are loosely structured with simple component. Adsorbed in the surface of clay minerals, the gold is in free state and can be separated at once through cyanidation, so the gold leaching rate,when conducting heap leaching process is able to reach to 96%. The mineralized materials of such kind gold deposit were from ore-bearing primary rocks,The mineralization was related to efflorescence under the conditions of damp and heat in the middle period of pleistocene epoch.Scattered in primary rocks,the gold are activated,migrated and enrichedito form commercialorebody nearby ancient phreatic surface.

关 键 词：红土型 大型矿床 金矿床 蛇屋山 

分 类 号：P618.51[天文地球—矿床学]