Research on Geology and Isotopic Geochemistry of Caixiashan Pb-Zn Deposit in Xinjiang

The geochemical characteristic of S and Pb isotope compositions of the ore minerals and wall rocks,and H and O isotope compositions of gangue rocks from the Caixiashan Pb-Zn deposit in Xinjiang are studied.The results show that the metal is mainly derived from the mixture of mantle and crust,the magmatic sulfur,which assimilate silicon in the sea with a small amount of the sulfur made by biology in reductive condition.H and O isotopes reveal that the metallogenic fluid may has magmatic hydrothermal in early times and the formational water in the stratum participated the maineralization during the main metallizing phase.