METALLOGENIC SYSTEM IN GOLD-SILVER-COPPER DEPOSITS,TAYUAN DISTRICT,HEILONGJIANG PROVINCE
YANG Yong qiang 1,2 ,LI Ying 2,FAN Ji zhang 2 (1.China University of Geosciences, Beijing 100083,China;2.Jilin University,Changchun 130026,China)
Based on multiple geological information of geology,geochemistry and geophysics in Tayuan district, Heilongjiang Province, the geological setting, geology of mining area and mineralizing fact were comprehensively analyzed and the methallogenic systematic model was established. This model indicates that the mobile belt of continental margin, the basement of Proterozoic group, and the NE fracture system are the favorable tectonic environment and metallogenic geological setting for the ore forming system of gold silver copper in this area. The favorable metallogenic geological setting is presented by intricacy magnetic field and relative high gravity field geophysically. Assemblage anomaly of Au, Ag, As, Sb, Cu, Bi is the indicator of geochemical anomaly of ore forming system.