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The Longquanzhan gold deposit hosted in granitic cataclasites with mylontization of the foot wall of the main Yishui-Tangtou fault. 3He/4He ratios in fluid inclusions range from 0.14 to 0.24 R/Ra, close to those of the crust-source helium. 40Ar/36Ar ratios were measured to be 289–1811, slightly higher than those of atmospheric argon. The results of analysis of helium and argon isotopes suggested that...
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