甘肃北祁连西段朱家大山-大长乾铜多金属成矿带及典型矿床  

The copper polymetallic belt and typical deposit at Zhujiadashan-Dachangqian in the western sector of North Qilian Mountains

作　　者：李杰[1] 东建星[1] 林森[1] 司雪峰[1] 

机构地区：[1]甘肃有色地质勘查局四队,甘肃张掖734012

出　　处：《桂林工学院学报》2002年第3期345-348,共4页Journal of Guilin University of Technology

基　　金：国土资源部国土资源大调查项目 (2 0 0 0 10 2 0 0 15 11)

摘　　要：北祁连西段朱家大山 -大长乾铜多金属成矿带 ,是北祁连重要的铜多金属成矿带 .带内出露地层为奥陶系 ,火山岩十分发育 ,铜矿化和铜化探异常十分普遍 .带内典型矿床九个泉铜矿床 ,产于奥陶系基性火山岩、凝灰岩中 ,矿区内断裂、节理构造发育 ,可分东、西 2个矿带 ,共有地表及盲矿体 1 1条 ,矿床成因属火山喷气 (流 )沉积改造型 。The copper polymetallic belt of Zhujiadashan-Dachangqian in the west of North Qilian is the important copper polymetallic belt at North Qilian.The exposed layer is O in the belt.There are many extrusive rock,copper mineralization and copper singular.Jiugequan copper deposit is particular in the belt.It is found in the basic extrusive rock and tuff.There many rifts and joints in the mining area.The deposit can be divided into two parts:the west and the east. There are 11 pieces of ore bodies in the deposit.The origin is extrusive blow-deposit remade type.The materral source lies in upper earth mantle.

关 键 词：铜多金属成矿带 火山喷气沉积改造 甘肃 成因 矿化作用 火山岩 

分 类 号：P618.41[天文地球—矿床学]