Textural, compositional and isotopic characteristics of pyrite from the Zaozigou gold deposit in West Qinling, China: Implications for gold metallogeny

•Polygenetic gold mineralization associated with multiple magmatic-hydrothermal events.•Example for Carlin-type gold deposits contributed by magmatic fluids.•Invisible gold is removed from the ore fluids largely by chemisorption onto the arsenian pyrite.