甘肃西成地区金矿地质特征及找矿方向  

The geological features of gold deposit and its prospecting target in Xicheng area of Gansu Province

作　　者：田继孝[1] 

机构地区：[1]甘肃有色地质勘查局天水总队

出　　处：《黄金》2004年第5期8-11,共4页Gold

摘　　要：西 (和 )成 (县 )地区主要为蚀变岩型金矿 ,产于西秦岭泥盆系中上泥盆统碎屑岩中 ,蚀变以硅化、碳酸盐化、绢云母化、黄铁矿化、毒砂化为特征 ,矿石中金以自然金为主 ,石英、方解石、白云石、黄铁矿为主要载金矿物 ,断裂构造是最主要的控矿因素 。There are mostly rock altered gold deposits in Xicheng area,which occurred detrital sedimentary rocks of upper Devonian Series.The alteration is characterized silicification,carbonation,sericitization,pyritization and arsenopyritization.The gold inside ore is mostly native gold.Quartz、calcite、dolomite and pyrite are primary gold carried minerals.Fractures are primary mineralization controlled factor.It has found that the prospecting future should be on sides of ore bodies,at depth,in Dongshan Formation and around Pb Zn deposits.

关 键 词：地质特征 找矿方向 西成地区 甘肃 

分 类 号：P1618.51[天文地球—天文学]