中文摘要：

金厂金矿床是中国东部陆缘超大型热液金矿床之一,矿床主要由角砾型金矿体和铜金矿体构成。为研究2种矿体的成矿流体来源、演化之间的联系,对铜金矿体中石英等矿物的流体包裹体进行了岩相学、显微测温和单个包裹体气液相成分激光拉曼探针分析。研究表明：①流体包裹体类型有纯气相包裹体、气液两相（包括富气相）包裹体、含子矿物多相包裹体和纯液相包裹体;②均一温度变化范围在230-600℃（〉600℃）之间,其中,钾长石-石英-黄铁矿阶段、石英-黄铁矿阶段、石英-多金属硫化物阶段的温度分别为510-600℃、410-510℃、270-410℃;③盐度w（NaCleq）变化在2.57%-73.96%之间,可分为高温高盐度（35.99%-73.96%）、高温中高盐度（38.94%-57.09%）和高中温中低盐度（2.57%-19.05%）3类;④流体包裹体气相成分主要为H2O、CO2,少量N2、C4H6、H2;⑤多相流体包裹体中的子矿物有石盐、钾盐、石膏、重晶石和黄铜矿等。这些特征揭示成矿流体为高氧化岩浆热液（H2O-CO2-NaCl-SO4^2-型）。结合前人对角砾岩型金矿体（1号）的流体包裹体研究,初步确定成矿流体的演化过程为,来自幔源岩浆期后的热流体,上升到达地壳浅部发生隐爆、沸腾作用,形成低盐度和高盐度含矿流体后,伴随着温度和压力的降低,流体结晶沉淀,形成角砾岩型铜金矿体。

英文摘要：

The Jinchang copper-gold deposit, one of the superlarge hydrothermal deposits located in the east continental margin of China, is mainly composed of breccia-type gold and copper-gold type ore bodies. The fluid phases associated with chalcopyrite-auriferous quartz veins were investigated by means of microtherrnometry and Raman microprobe. Some conclusions were reached through petrographic observation： （1） There exist four types of fluid inclusions, i.e., pure volatile inclusions （V）, aqueous-biphase inclusions （L ＋ V）, aqueous polyphase fluid in- clusions with daughter minerals （L ＋ V ＋ M） and a few pure liquid fluid inclusions （L）. （2） Homogenization studies of these fluid inclusions furnish a temperature range of 230℃ to 600℃, with the K-feldspar-quartz-pyrite stage, quartz-pyrite stage, and quartz-multimetallic sulfide stage temperatures being 510℃ to 600℃, 410℃ to 510℃, and 270℃ to 410℃, respectively. （3） The salinity w （NaCleq）of the fluid inclusions varies between 2.57 % and 73.96 %, composed of high temperature high salinity （35.99 % to 73.96 % ）, high temperature high-medium-salinity （38.94% to 57.09% ）, and high-medium temperature medium-low salinity （2.57% to 19.05% ）. @ The volatiles are mainly H2O, CO2 and a few N2, C4H6, H2. （5） Halite, sylvine, anhydrite, and chalcopyrite were found in polyphase fluid inclusions. These characteristics indicate that the ore-forming fluids are oxidized magmatic fluids （H2O-CO2-NaCl-SO4^2-type）. Combined with previous studies of the breccia-type gold fluid inclusions, the authors have summarized the evolutionary process of the ore-forming fluid as follows： The mantle source post-magrnatic thermal fluids ascended to the shallow crust and formed low-salinity and high- salinity fluids by cryptoexploration and boiling. With the decompression of dense fissures and the decrease of temperature, the fluids crystallized and precipitated to form copper-gold ore bodies. The breccia gold deposits, however