冬瓜山层状铜矿成矿地质背景及成因  

Metallogenic geological settings and genesis of Dongguashan stratified copper deposit

作　　者：刘经华 李卉[2] 徐兆文[3] 陆现彩[3] 刘苏明[3] 聂桂平[2] 

机构地区：[1]安徽省铜陵市铜都铜业冬瓜山铜矿,安徽铜陵244031 [2]江苏省地质调查研究院,江苏南京210018 [3]南京大学地球科学与工程学院,江苏南京210093

出　　处：《地质学刊》2009年第2期133-137,共5页Journal of Geology

基　　金：国家自然科学基金项目(编号49873016);"973计划"(编号2007CB815603)联合资助

摘　　要：以冬瓜山层状铜矿床为例,通过成矿地质背景和矿床地质特征研究,探讨层状铜矿床成因。研究发现冬瓜山层状铜矿床是在原始矿胚层沉积基础上,经燕山期岩浆热液叠加成矿作用所形成层状铜矿床,成矿作用经历了两个成矿阶段:早阶段是由泥盆至石炭纪喷流沉积形成的块状硫化矿床,晚阶段受燕山期岩浆改造而形成的热液交代型矿床。Cited Dongguashan sedimentary hydrothermal diplogenetic stratified copper deposit as an example, and based on the studies of regional geological settings and deposit geological characteristics of Dongguashan stratified copper deposit; the authors discussed the genesis of stratified copper deposit. It is concluded that the mineralizing processes of Dongguashan copper deposit could be divided into two stages：stratified sedimentary deposit or proctored layer formed in late Devonian to late Carboniferous periods as its first stage; the pre-existed proctored deposit was diplogenetic ahernated by magmatic hydrothermal fluid derived from Yanshanian magmatic activities as its second stage.

关 键 词：层状铜矿 成因 冬瓜山铜矿 安徽铜陵 

分 类 号：P618.41[天文地球—矿床学]