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1矿床地质特征矿区位于羌塘-三江复合板片南缘、斑公湖-怒江成矿带西段多龙矿集区内。矿区出露的地层由老到新主要为:中侏罗统曲色组第一岩性段(J2q1)、第二岩性段(J2q2)及第四系(Q4)。区内地层呈单斜构造,没有褶皱构造和断裂构造。矿区主要岩浆岩为中酸性侵入岩,岩石类型以花岗闪长斑岩为主。矿区变质岩类型主要为变长石石英砂岩、粉砂质板岩、变石
1 Geological characteristics of the deposit The mine is located in the southern margin of the Qiangtang-Sanjiang composite sheet and within the Duolong mine area in the west of the Baogonghu-Nujiang metallogenic belt. The main strata of the exposed strata in the mining area are mainly J2j1, J2q2 and Q4 in the Middle Jurassic Quaternary. The strata in the area have a monoclinic structure with no fold structure or fault structure. The main magmatic rocks in the mine area are acidic intrusive rocks, and the rock type is dominated by granodiorite porphyry. Main types of metamorphic rocks in the mine are metamorphic rock, silty slate and rock