阴山超大型硫化物矿床形成的有利条件  

FAVOURBLE CONDITIONS FOR SUPER LARGE SULFIDE DEPOSITS IN YINSHAN DISTRICT

作　　者：李英[1] 祁思敬[1] 张振飞[1] 金章东 

机构地区：[1]西安工程学院

出　　处：《化工矿产地质》1997年第4期217-225,共9页Geology of Chemical Minerals

基　　金：国家攀登项目

摘　　要：阴山中元古代成矿带（狼山渣尔泰山）属于华北地台元古宙巨大成矿带的西段，产有多处硫铁多金属矿床，一些已经达到超大型矿床的规模。它们形成的时代和地质环境具显著的热水沉积成矿的特征，可与世界中元古代ＳＥＤＥＸ对比。已经判别出成矿盆地及热水通道等。充足的物质来源、巨大的热源、热水系统演化的完整性、成矿盆地极好的封闭性保证了同生期成矿的高强度。Yinshan Middle Proterozoic metallogenic zone (Langshan Zhaertaishan), geotectonically the western section of the huge Proterozoic metallogenic province of North China platform, is abundant in pyrite and polymetallic deposits, with some accepted as super large. Owing to being typical of hot water minerlization relative to metallogenic age and conditions, these sulfide deposits may be comparable to the SEDEX type deposits elsewhere in the world.The hot water basins where they formed and the accesses the hot waters passed to the basins have been found out. Sysgenetic polymetallic mineralization was intensive as a result of adequateness of ore forming materials and heat sources,perfect evolution of hot water system,and better closure of basins.The deposits experienced clear additional modifications during post orogeny time.

关 键 词：超大型矿床 热水沉积 中元古代 硫化物矿床 成矿 

分 类 号：P618.205[天文地球—矿床学]