青海省扎麻什西沟金铜矿床地质特征及成矿条件浅析

通过论述扎麻什西淘金铜矿床的地质背景，总结其地质特征，认为该区奥陶系中酸性火山岩为赋矿岩性，对矿体的形成有控制作用。从工程揭露来看，矿区局部所形成的明显的黄褐色褐铁矿化蚀变带对金矿的形成十分有利，西沟一带大多分布有奥陶系火山岩，具备成矿的构造、地层条件，找矿潜力较大。

Geological Features and Metallogenic Condition of Zhamashixigou Gold-copper Deposit in Qinghai Province

Through discussing the geological background of Au—Cu deposit at Zhamashixigou，and summarizing its basic geological features，we hold that the intermediate—acid volcanic rocks at Ordovician in this area is the bearing lithology，it also controls the formation of the ore-body．From the project to expose，the partial formation of a clear snuf color limonite alteration zone is in favor of the formation of gold．mostly along Xigou Ordovician volcanic rock distribution，with the conditions of forming the structure of strata，to find great potential for mining．