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班公湖-怒江成矿带是一条以矽卡岩-斑岩型铜金矿为主的金铜多金属成矿带。该文对在该带西段新发现江玛南铜银矿点地质特征进行了论述。江玛南铜银矿赋存于去申拉组火山岩中,受破碎构造带控制,属于与火山机构有关的热液型矿床,具有浅成低温热液型矿床的特征,成矿后受到次生氧化作用。该矿床的发现对该地区寻找浅成低温热液型-斑岩型矿床有重要的指导意义,显示班公湖-怒江成矿带除其南北两侧外,带内同样有寻找浅成低温热液-斑岩型铜金多金属矿的潜力。
The Bangong Lake-Nujiang metallogenic belt is a gold-copper polymetallic metallogenic belt dominated by skarn-porphyry copper-gold deposits. This paper discusses the geological features of the newly discovered Jiangma Nan copper-silver deposit in the west section of the belt. Jiangma Nan copper-silver deposits occur in the volcanic rocks of the Shilala Formation and are controlled by the crustal tectonic belts. They belong to hydrothermal deposits related to volcanic bodies and have the characteristics of epithermal deposits. They are subject to secondary oxidation after mineralization . The discoveries of this deposit have important guiding significance for the search for epithermal-porphyry deposits in the area, showing that besides the north and south sides of the Bangong Lake-Nujiang metallogenic belt, there is also the search for shallow hypothermia Potential of liquid-porphyry copper-gold polymetallic ore.