新疆滴水陆相砂岩型铜矿成因浅析  

RESEARCH ON METALLOGENY OF THE DISHUI LACUSTRINE SEDIMENTARY ROCK-HOSTED COPPER DEPOSIT IN XIJIANG REGION

作　　者：时文革[1,2] 姚玉增[1] 巩恩普[1] 褚亦功 张永利[1] 赵纯福[1] 

机构地区：[1]东北大学,辽宁沈阳110004 [2]山东招金集团,山东招远265400

出　　处：《地质与资源》2016年第1期60-68,共9页Geology and Resources

基　　金：山东地质勘查基金项目(编号:鲁勘字2010061号)

摘　　要：新疆滴水铜矿床位于库车拗陷盆地西南缘,为典型新生代陆相砂岩型铜矿床.矿体呈层状,主要产于上覆灰色泥灰岩与下伏灰白色中粗粒/中细粒砂岩接触部位.矿体品位与Fe2+呈显著正相关而与Fe3+呈负相关.矿石矿物以赤铜矿为主.综合研究认为,新疆滴水铜矿形成经历了原生沉积—成岩期改造—表生氧化淋滤几个阶段,矿床应属于沉积改造型陆相砂岩铜矿床.The Dishui copper deposit in Xinjiang Uygur Autonomous Region, a typical Cenozoic lacustrine sedimentary rock-hosted deposit, lies in the southwestern margin of Kuqa depression basin. The ore bodies occur as stratiform, between the overlying grey marl and the underlying greyish white medium-grained sandstone. The copper grade is positively related to Fe2~ while negatively to Fe3~. Cuprite is the major ore mineral. The synthetic research indicates that the Dishui copper deposit experienced several genetic stages such as syn-sedimentary, diagenetie reformation and oxidation leaching. The deposit belongs to sedimentary transformation lacustrine sedimentary rock-hosted copper deposit.

关 键 词：砂岩型铜矿 陆相 矿床成因 滴水铜矿 新疆 

分 类 号：P618.41[天文地球—矿床学]