俄罗斯乌多坎砂岩型铜矿的成矿特征与找矿标志  

Metallogenic Characteristics and Prospecting Indications of Udokan Sandstone-type Copper Deposit in North Transbaikalye,Russia

作　　者：周永恒[1] 鲍庆中[1] 柴璐[1] 张哲寰[1] 时建民[1] 段瑞炎[1] 

机构地区：[1]中国地质调查局沈阳地质调查中心,沈阳130034

出　　处：《地质科技情报》2013年第5期153-159,共7页Geological Science and Technology Information

基　　金：中国地质调查局项目"全球巨型成矿带区域构造与成矿地质背景对比研究"(1212011220906)

摘　　要：乌多坎砂岩型铜矿是世界知名的超大型砂岩型铜矿之一。总结了该矿床形成的区域地质背景和矿床地质特征,建立了乌多坎砂岩型铜矿的找矿模型与找矿标志,对比了乌多坎砂岩型铜矿床与世界主要著名砂岩型铜矿床的特征,分析了它们之间成矿及赋矿的共同点。结果表明,世界著名的大型-超大型砂岩型铜矿均形成于后造山盆地或地台边缘的盆地(坳陷)中;矿体的规模与形态取决于岩性-岩相条件;矿化类型均具有Cu-Ag矿化特征;均具有干旱的古气候条件及滨海相、三角洲相、海湾-泻湖相的岩相-古地理环境。Udokan sandstone-type copper deposit is one of the world famous super-large copper deposit. The paper briefly describes the discovery history and development status of the deposit, summarizes the regional geological setting and geological characteristics of the deposit, establishes the prospecting model and prospecting indicators of the deposit, and compares the deposit＇s characteristics with that of the other world famous sandstone-type copper deposit, meanwhile, analyze the common points of mineralization and ore-bearing formation between them. The conclusion is that. the world-famous large, super-large sand- stone-type copper deposits are formed in the orogenic basin or the depression basin at edge of platform; the size and form of the orebodies depend on lithological characters and lithofacies features; mineralization types are all with Cu -Ag mineralization characteristics l all formed under paleoclimate drought conditions, and in the lithofacies-ancient geographical environment of littoral facies, delta facies, bay-lagoon facies.

关 键 词：科达尔-乌多坎 坳陷盆地 砂岩型铜矿床 矿化特征 

分 类 号：P618.41[天文地球—矿床学]