吉林省珲春市大东南岔东区金铜矿区找矿方向探讨

Gold copper mining area prospecting direction of Dadongnancha east zone in Hunchun City, Jilin Province

大东南岔东区金铜矿区位于延边优地槽褶皱带东部、春化—四道沟中间凸起西侧,区内已发现33条金铜矿(化)体,26条矿(化)体赋存在黑云母斜长花岗岩内,7条矿(化)体赋存在五道沟群内。与矿体关系最密切的矿化为褐铁矿化,褐铁矿化的强度大则金品位就高。矿体受近南北向次级断裂构造控制,向深部寻找复式岩体[4]是本区找矿方向。

Dadongnancha east zone,gold copper mining area is located in the eastern part of Yanbian eugeosyncline fold belt, on the west side of vernalization-Sidaogou middle bulge, in which 33 gold copper ore（mineralized） bodies have been found：26 ore（mineralized） bodies occurred in biotite plagioclase granite, 7 ore（mineralized） bodies occurred in Wudaogou group. Mineralization, the most closely relationship with ore bodies, is limonite, the greater the intensity of limonite, the higher gold grade. Ore bodies are controlled by nearly SN trending secondary fracture structure, deep to find complex massif is prospecting direction in this region.