The source and evolution of ore fluids in the Heiniuwa gold deposit, Baoshan block, Sanjiang region: Constraints from sulfide trace element, fluid inclusion and stable isotope studies

The Heiniuwa gold deposit is located in the northwestern segment of the Longyang Au–Fe–Pb–Zn polymetallic ore cluster in the northern Baoshan block, Sanjiang region, SW China. This ore cluster is characterized by skarn Fe–Pb–Zn mineralization (∼120 Ma) in the central part and Au mineralization in the distal part. The genesis of the Heiniuwa deposit and its relationship with the skarn deposits remain unclear. All orebodies in Heiniuwa are hosted...