中文摘要：

英城子金矿床是典型的浅成热液型矿床,为确定矿床成矿条件,结合矿床地质特征同时对不同深度的同一条含金石英脉中的流体包裹体分别进行了显微测温和激光拉曼光谱的分析研究。研究结果表明：英城子金矿床矿石类型主要为蚀变岩型,其次为石英脉型;成矿过程分为以下4个阶段：（Ⅰ）石英-毒砂-黄铁矿阶段、（Ⅱ）石英-黄铁矿阶段、（Ⅲ）石英-多金属硫化物阶段、（Ⅳ）石英-硫化物阶段;流体包裹体的类型多数为气液两相,少数为气、液单相或三相包体,均一温度变化范围247.9℃~400.0℃,盐度[w（NaCl）]为3.15%~7.70%,成矿流体密度为0.65 g/cm3~0.87g/cm~3;结合包裹体激光拉曼光谱数据确定成矿流体属于中低温,中低盐度的CO_2-H_2O-NaCl体系;根据测温数据,该矿床的成矿压力为6~50 MPa、相应就位深度为0.11~0.65 km;由此可推测该矿床是与韧性变形作用有关的中温中压热液金矿床。结合前人有关成矿年代学的研究成果,可以进一步确认成矿作用发生在晚二叠世末亚洲洋壳俯冲作用晚期,且与陆内松嫩板块和佳木斯板块碰撞过程中构造体制的转换紧密相关。

英文摘要：

Yingchengzi gold deposit is a typical epithermal deposit. To understand the mineralization condition of the deposit,integrating the geological characteristics of the deposit,the authors undertook microthermometry and laser-raman spectrum analysis on the fluid inclusions from the same gold-bearing quartz vein of different depths. The results show that the ore of Yingchengzi gold deposit is mostly alterated rock type,and the rest is quartz vein type. The mineralization processes can be devided into four phases：（ I） Quartz-arsenopyrite-pyrite phase,（ II） Quartz-pyrite phase,（ III） Quartz-polymetallic sulfide phase and（ IV） Quartz-sulfide phase. The fluid inclusions are mainly in gas-liquid phase,with the rest in single phrase of gas or liquid or in three phases. Thehomogenization temperature ranges from 247. 9℃ ~ 400℃,salinity（ w（ NaCl）） ranges from 3. 15% ~ 7. 70%,and the mineralization fluid density is 0. 65 g/cm3~ 0. 87 g/cm3. Combined with the data from inclusions laser-raman spectrum it is concluded that ore-forming fluid belongs to a medium to low temperature,medium to low salinity CO_2-H_2O-NaCl system. According to the results of thermometry,the pressure of ore-forming is 6 ~ 50 MPa,at depth of 0. 11 ~ 0. 65 km. Therefore it is concluded that the deposit is a medium temperature,medium pressure hydrothermal gold deposit related to ductile deformation. Combing the previous studies of metallogenic chronology,it is confirmed that the mineralization occured during the Asian oceanic crust subduction of Late Permian,and was related to the transformation of tectonic regime during continental collision of Songnen Massif and Jiamusi Massif.