辽宁四道沟金矿床围岩蚀变类型、期次及其找矿标志意义  

Wall rock alteration types,sequences and their exploration significa nces of Sidaogou gold deposit,Liaoning province

作　　者：张晓东 吴喜刚[2] 齐增辉[2] 周文君[2] 

机构地区：[1]辽宁省丹东三鑫矿业有限责任公司 [2]辽宁五龙金矿

出　　处：《黄金》2008年第3期18-20,共3页Gold

摘　　要：四道沟金矿床为赋存于辽河群盖县组变质砂岩地层中,主要受层间破碎带控制的大型蚀变岩型金矿床,矿区近矿围岩发育两期较强的热液蚀变作用,即元古代区域地层变质期的面型热液蚀变及燕山期与金成矿有关的线型热液蚀变,其中后者中的硅化、黄铁矿化等类型蚀变作用与金矿化关系密切,可作为该区找矿的主要围岩蚀变标志。Located in the southern part of the Yingkou-Kuandian uplift, Sidaogou gold deposit is a large altered rock type deposit that occurred in metasandstone rocks of Gaixian suite, Liaohe group and controlled by inter-bedded brecciation belt. In the mining district, two phases of strong wall rock alterations developed which are widely distributed alterations in all rocks of the region caused by metamorphism of Proterozoic age and alterations just adjacent to ore bodies caused by metallogenetic process of Yanshan Stage. Silicification and pyritization of metallogenetic process are intimately related with gold mineralization both spatially and temporally, so they can be used as important marks in successive exploration work.

关 键 词：四道沟金矿床 围岩蚀变 黄铁矿化 硅化 

分 类 号：P618.51[天文地球—矿床学]