“…The multifaceted physicochemical controls of ore fluid on metal precipitation include, among others, redox state and sulfidation state (Einaudi et al, 2003;Zhong et al, 2015), density (Rusk et al, 2008), salinity (Rusk et al, 2008;Yang et al, 2012), composition especially the availability of ligands (chlorine and bisulfide) (Mao et al, 2011a;Seward et al, 2014), and pressure-temperature (Mei et al, 2013;Sillitoe, 2010;Zajacz et al, 2011). As the sulfidation state increases (Barton and Skinner, 1967), fluid temperature drops (Mao et al, 2011b) and fluid immiscibility (Heinrich et al, 1992;Seo et al, 2009) would occur to precipitate metal with the proceeding of mineralization Liu et al, 2015). The propylitic alteration invariably overprints the quartzsericite alteration at different degrees and inevitably further modifies the Cu mineralization.…”