The Xifanping porphyry copper deposit is located in the Xifanping area, Yanyuan County, Sichuan, China. Geochemical studies of various kinds of fluid inclusions in the deposit (characteristics, and their temperature, pressure, composition, salinity, density, hydrogen\|oxygen isotopes, ore\|forming\|fluid boiling features and so on) indicate that the deposit was formed in the medium\|high temperature, hypabyssal\|superhypabyssal environment. The ore\| forming fluid is characterized by high salinity and high ...