若羌喀腊大湾铜矿床地质特征及成因

摘要

喀腊大湾铜矿位于塔里木板块塔里木古陆缘地块红柳沟-拉配泉奥陶纪裂谷带,矿区位于阿尔金北缘断裂带南侧、喀腊达坂断裂与喀腊大湾断裂的交汇部位.矿体产于蓟县系卓阿布拉克组火山岩地层中,是一个以铜为主,共(伴)生铅锌的多金属矿床.推测成矿作用发生于火山旋回间歇式喷发期,岩石蚀变较强,蚀变分带明显,矿石类型主要为条带浸染状和条纹浸染状,成因类型属与火山作用有关的火山岩型硫化物矿床.%The tectonic position of the Kaladawan copper deposit is located in Hongliugou-Lapeiquan Ordovician rift zone in ancient continental margin of Tarim block, Tarim plate, situated at the junction of the South of the Northern Altun Tagh, Kaladaban fault and Kaladawan fault.Orebody in Kaladawan copper deposit occurs in Zhuo'erbulake Formation volcanic stratum0 in Jixian System,is a VMS copper deposit associated with Pb and Zn. The copper polymetal mineralization occurred during the intermittent eruption of the volcanic activity. Speculated that mineralization occurred in the volcanic cycle intermittent eruption. Strong alteration of the rock.Alteration zonation is more obvious.The majority of the ore type is bands disseminations and streaks disseminated.The genetic type of a volcanic-type sulphide deposits related to volcanism.