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The Tieshanlong tungsten‐polymetallic deposit is a large wolframite deposit of quartz vein type located in southern Jiangxi, South China. It is genetically related to a high‐K S‐type granite. Seven pyrite and two wolframite samples, selected for He and Ar isotope analyses, yielded 3He/4He values of 0.04–0.98 Ra, 40Ar/36Ar ratios of 293.5–368.0, and 38Ar/36Ar ratios of 0.176–0.193. These data indicate...