甘肃省瓜州县东石板山金多金属矿区域成矿地质条件分析

Analysis of regional metallogenic geological conditions of Dongbanshan Gold Polymetallic deposit in Guzhou County gansu Province

文章研究表明:从地层条件看,研究区处于成矿有利地层,即处于浅海相的碎屑岩—火山岩沉积建造内;北东向断裂构造既是研究区的导矿构造,又是控矿构造;花岗斑岩脉为金矿形成提供了物质来源和热源;研究区位于石板山-新金厂两条NE向展布的异常带内,异常带明显受北东、北西、东西向断裂构造控制,在断裂交汇部位或附近,异常密集分布,异常元素组合以Au、As、Sb、Mo、Hg为主,找矿前景巨大。

The study shows that the study area is located in the favorable formation for mineralization from the perspective of stratigraphic conditions,that is,in the sedimentary formation of shallow Marine clastic rock and volcanic rock.The ne trending fault structure is not only the ore guiding structure but also the ore controlling structure in the study area.Granitic porphyry dikes provide material source and heat source for gold deposit formation.The study area is located in sbanshan-Xinjinchang two NE trending anomaly zones,which are obviously controlled by NE,NW and E w trending faults.The anomaly zones are densely distributed at or near the intersection of faults,and the anomaly element combinations are mainly Au,As,Sb,Mo and Hg,indicating great prospecting prospects.