Accumulation of sulfides in the basement of southern Hunan Province, China: Implications for Pb–Zn mineralization related to reduced granitoids

•Huangshaping is unique for the coexistence of economic W–Mo and Pb–Zn mineralization.•Granodioritic enclaves containing abundant sulfides have recently been found.•Sulfides from the enclaves precipitated under higher temperature than Pb–Zn ores.•Accumulation of sulfides in the basement is crucial for the Pb–Zn mineralization.