Source of ore-forming material and metallogenic age of the Zheboshan gold deposit, western Sichuan Province, China

The Zheboshan gold deposit, which is located in the “Gold Triangle” area on the borders of Sichuan. Gansu and Shaanxi provinces, is a very complicated micro-fine disseminated gold deposit. Considering the ICP-MS measurements and Rb and Sr isotope data, it is suggested that the orcforming materials may have come from the quartz-amphibole porphyrite dykes. It is also suggested that the age of ore depasit is generally consistent with the age of formation of the quartz-amphibole porphyrite. It is further deduced that the deposit is a magmatic hydrothermal ore deposit.