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1 Sample and analytic methods The Qixia gold deposit is one of the important quartz vein-type deposits hosted in metamorphic rockin east Shandong Province, China. About 12 samples were collected at different depths of the Qixia goldmineral district to investigate the variations in the hydrogen and oxygen isotope compositions of alteredrocks. Hydrogen was extracted by melting samples and oxygen was obtained through oxidation by BrF_5.The isotope compositions were measured with MAT252, and the precisions for oxygen and hydrogen isotope analyses were±0.2‰ and 2‰, respectively. All the analyses were fulfilled at the State Key Lab.of Mineral Deposit Research in Nanjing University. The δD and δ~(18)O values relative to SMOW are givenin table 1.
1 Sample and analytic methods The Qixia gold deposit is one of the important quartz vein-type deposits hosted in metamorphic rock in east Shandong Province, China. About 12 samples were collected at different depths of the Qixia goldmineral district to investigate the variations in the hydrogen and oxygen isotope compositions of altered rocks. Hydrogen was extracted by melting samples and oxygen was obtained through oxidation by BrF_5. isot isotidine compositions were measured with MAT252, and the precisions for oxygen and hydrogen isotope analyzes were ± 0.2 ‰ and 2 ‰, respectively. All the Analyzes were fulfilled at the State Key Lab. of Mineral Deposit Research in Nanjing University. The δD and δ ~ (18) O values relative to SMOW are givenin table 1.