云南马龙西沟铜矿地质特征及成因探讨

THE GEOLOGICAL FEATURE AND A PROBE INTO THE GENESIS OF XIGOU CU DEPOSIT IN MALONG,YUNNAN

西沟铜矿为近东西向断层主导控矿,V1矿体的近矿围岩为牛头山组,V2矿体的近矿围岩为南沱组,矿化主要为硅化、褐铁矿化、黄铁矿化、黄铜矿化、孔雀石化等,找矿标志明显。铜元素富积与构造作用关系密切。属构造控制作用与热液叠加型铜矿床。

Xigou Cu deposit is mainly controlled by EW fault. The wall rock of ore body V1 is Niutoushan Formation, whereas the wall rock of ore body V2 is Nantuo Formation. The main metallogenetic alteration is silicification, limonitization, pyritization, chalcopyritization, malachitization, etc. The prospecting criteria are evident. The Cu concentration is close related to the structure. It belongs to the Cu deposit of structure control and thermal fluid superimposition type.