Genesis of Beidagou gold deposit of Heihe City,Heilongjiang Province

The Beidagou gold deposit is located in the periphery of Sandaowanzi gold deposit which is one of the higher grade gold deposits discovered by Bureau of Geologic Exploration and Mineral Development of Heilongjiang Province in recent years.The authors described geologic setting of ore deposits,characteristics of orebodies,ore-forming stages and times,and fluid enclosure characteristics,discussed genesis of the ore deposit,summarized the formation conditions,and proposed that Beidagou deposit belongs to mid-epithermal ore deposit related to volcanogenic hydrothermal solution.