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研究了包裹体的温压地球化学特征 ,获得了包裹体的均一温度、盐度和压力。结果表明 ,包裹体盐度由成岩阶段→岩浆期后铜钼成矿阶段→铜铁成矿阶段→成矿期后无矿阶段 ,呈逐渐降低趋势 ,而瞬时压力演化则呈反向特征 ;斑岩体石英斑晶中单个熔体包裹体和铜钼矿体石英脉中单个流体包裹体气相成分都以富含CO2 为特征 ,有机质成分 (C1—C4 )相当一致 ,均含有相近的硫的化合物 (H2 S或SO2 ) ,显示成矿物质来源与斑岩体演化有密切成生联系。
The thermogravimetric geochemical characteristics of the inclusions were investigated and the homogenization temperatures, salinities and pressures of the inclusions were obtained. The results show that the salinity of the inclusions decreases gradually from the stage of diagenesis → the stage of copper and molybdenum → the period of copper and molybdenum → the stage of non-ore after the ore-forming stage, while the evolution of instantaneous pressure is reverse. The gas components of a single fluid inclusions in single quartz inclusions and quartz inclusions in porphyrite quartz porphyries are all characterized by rich CO2. The organic components (C1-C4) are quite consistent and contain similar sulfur compounds (H2S or SO2), indicating that the source of mineralization is closely related to the evolution of porphyry.