| This paper had Sandaogou Lead-Zinc deposit for the research, analyzed its S, Pb, C and Hisotopes and contrast them with other Lead-Zinc deposits in Luanchuan ore-concentrated area.The analyzing results suggest thatδ34S values are around7.7‰-9.4‰, which are much higherthan other deposits’ and closed to Meiyaogou Group’s. Therefore, it can be concluded thatore-related strata contributed more ore-forming element(S); on the other hand,206Pb/204Pb valuesare from17.64to17.79,207Pb/204Pb values are from15.51to15.56,208Pb/204Pb values are from38.42to38.55. The variations of Pb isotope switch between Yanshanian granites, basement andore-related strata and be more closed to ore-related strata. The characteristics of Pb isotope showthat ore-forming metal element(Pb) come from ore-related strata more. The characteristics of C,H, O isotopes suggest that ore-forming fluids be the mixture of magama water and metamorphicwater, mainly from atmosphere water. Based on the interpretation of gravity and magnetic data,Sandaogou Lead-Zinc deposit is more far from Yanshanian ore-related plutons than otherLead-Zinc deposits in Luanchuan ore-concentrated area. Therefore, ore-forming materials arefrom ore-forming strata more than form Yanshanian plutons, which is accordance with the viewthat Meiyaogou group is the important ore-forming strata. It probably indicate thatmineralization happening in ore-forming strata was contemporary with the formation of strata;besides, ore-forming strata and Yanshanian magma activity contributed ore-forming materialsand heat resource for the formation of Lead-Zinc ore body, respectively. In brief, on the processof the Yanshanian magma, the ore-forming materials(S and Pb) activated and mix in fluid withthe combined effects of Meiyaogou strata fluid and few magma fluid to form ore-forming fluidwhich form economic Lead-Zinc ore body in the space of fault structures. |
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