The Dashuigou tellurium deposit is related to the Permian metamorp hic basalt The Dongping gold (tellurium) deposit is closely r elated to intrusion The components of metamorphic rocks sho w that the SiO2 contents range from 4536% to 4874%, Na2O+K2O from 1 77% to 265%, TiO2 from 169% to 248%, so they are alkaline volcanic ro cks  The petrochemical compositions of the syenite in the Shuiquangou complex show that the SiO2 contents range from 6120% to 6649%, Na2O+K2O from 10 35% to 1329%, Fe2O3+FeO from 095% to 365%, CaO from 031% to 300%, so they are weakly alkaline rocks The Dashuigou deposit formed in high temperature and in wide temperature ra nge ( 400～260～160～80℃)The mineralization can be devided into two stages The or ef orming tempera ture ranges of the two stages are 340～280℃ and 260～160℃ respectively The o re forming temperature of the Dongping gold deposit ranges from 360 to 120℃ and its salinity of oreforming fluid is medium to low (12 5% to 03%NaCl) The salinity of oreforming fluid in the Dashuigou dep osit ranges from 146% to 06%NaClThe salinity of the oreforming f l uid in the main oreforming stage of tellurium is high and ranges from 2 80% to 335%NaCl The inclusions have all kinds of types The main oreforming stage of tellurium is characterized by boiling inclusions The s ingleinclusion analyses through Laser Raman microprobe show that both deposits contain H2O, C O2, CO, CH4, F-, Cl-, SO2-4 and H2, but the ratios of Na+/K +, Cl-/SO2-4 and CO2/H2O in the Dashuigou are higher than those in Dongping deposit Stable isotopic studies show that δ18OH2O values range from 131‰ to 109‰ , δD from -54‰ to -64‰, δ13C from -53‰ to -74‰, δ 34S from 14‰ to -05‰ in the Dashuigou deposit, and δ18OH2O from 4 2 4‰ to -586‰, δD from -4028‰ to -1013‰, δ13C -27‰, δ13S from 47‰ to -138 4‰ in the Dongping deposit respe ctively Lead isotopic compositions of two deposits reveal lead originated fr om the mixed sources of mantle and crust The 3He/4He values of the Dashuigou dep osit are between 134 and 216 Ra, and 40Ar/36Ar values ar e between 385 and 1026 They suggest mantle fluid should play an important role in tellurium mineralization The studies on the processes of mineralization of two deposits show that vo lcanic—intrusive magma are sources of heat and partial mineralization mate ri als Magma—fluids play very important role in precesses of the heat transfer,m