东天山康古尔塔格金矿带地质特征及成矿规律  

Geological features and metallogenic rules of Kanggu'ertage gold belt in East Tianshan

作　　者：李彤泰 

机构地区：[1]冶金地质勘查工程总局西北地质勘查局,陕西西安710061

出　　处：《黄金地质》2004年第3期13-16,共4页Gold Geology

摘　　要：康古尔塔格金矿带位于塔里木和准噶尔两大板块的碰撞活动地带,EW长200km,有金矿床(点)二十多处。矿床主要产于下石炭统阿奇山组中酸性火山岩中,具层控性,各类岩石Au平均含量高出地壳克拉克值的3～11倍。华力西中晚期—印支早期中酸性浅成相侵入岩类与金成矿关系密切。沿康古尔塔格和苦水断裂发育一系列平行韧性剪切带,是金矿床产出的主要部位。金矿带具水平分带和垂直分带性,金矿脉呈带呈群分布,成矿具有阶段性,矿床类型主要为蚀变岩型和石英脉型,成因属中浅成中低温热液型矿床。The Kanggu'ertage gold belt locates in the collision active segment between the Tarim plate and the Junggar plate, long 200 km in EW, and have more than twenty gold deposits (points). The gold deposit occurred in the intermediate-co-acrid volcanic rock of Lower Carboniferous Aqishan Formation and had stratabound process. The average Au content of different rocks is 3～11 times than crustal clarke value. The intermediate-co-acrid hypabyssal intrusive rock of middle to later Variscan epoch to Indosinian epoch had close relation with gold metallization. The gold deposit mainly locate in the series of parallel ductile shear zone which along the Kanggu'ertage fault and Kushui fault. The gold belt had zonation in horizontal and vertical and gold vein distribute as zone and group, gold mineralized in different stage. The gold deposit type is major altered rock type and quartz vein type, and belongs to meso-hypabyssal middle-epithermal type deposit.

关 键 词：金矿带 地质特征 成矿规律 东天山 

分 类 号：P618.51[天文地球—矿床学]