Geologic features and genesis of Zhengguang gold deposit,Heilongjiang Province

The Zhengguangyan gold mining area is located in the western part of Heihe City,Jilin Province,about southeast 8km of the well-known Duobaoshan copper deposit in China,which belongs to the epithermal ore deposit,mainly occurs in the contact zone of the diorite of late Yanshanian and Duobaoshan Formation of Ordovician,showing vein and controlled by the contact structure and fracture structure.The orebody is up to medium deposit in scale.In this paper,the geologic features and genesis were studied in the study area.