成矿流体是矿床学研究核心内容之一，其研究重点是获得不同成矿阶段的流体成分和演化历程，以约束热液矿床的成矿过程。传统研究方法主要是以包裹体的群体成分来获得流体的成分，但很难精确地反映其物质组成，更无法展示成矿流体的精细演化过程。针对以上研究瓶颈，本项目将以胶东成矿流体丰富、金品位较高的玲珑金矿为研究实例，从微区尺度出发，分析各成矿阶段石英脉中单个流体包裹体的组分来进行突破。首先确定流体包裹体类型、期次和NaCl等效盐度，利用LA-ICPMS微区原位定量分析流体包裹体和石英微量元素的物质成分，应用石英Ti温压计和流体包裹体等容相图，计算成矿流体的温压条件，探索矿质沉淀的机制，最终揭示玲珑金矿成矿流体的物质来源和热液成矿过程，约束胶东热液金矿床成矿流体的来源与演化。

Metallogenic fluid study, including fluid compositions of different mineralization stages and their evolutionary processes, is one of the key issues of ore deposit research. Traditionally, fluid compositions were conducted by group fluid inclusions investigation. However, these methods are unable to reveal the exact compositions of metallogenic fluid and also their evolutionary processes. This has been hindering a better understanding of the metallogenic evolution of Jiaodong hydrothermal gold deposits. In order to unravel this issue, we focus on Linglong gold deposit, which has abundant fluid inclusions and high gold grade. We will use the compositions of fluid inclusions of different generations and their host quartz by LA-ICPMS analysis, combined the Ti thermobarometer and fluind inclusion isochore diagram, to: 1) evaluate trapping conditions; 2) depict the components of ore-forming fluid; 3) obtain the temperature, pressure of metallogenic fluid; 4) discuss the ore-forming elements precipitation mechanism. More importantly, we attempt to depict the fluid source and metallogenic evolution, and constrain the evolution process of Jiaodong hydrothermal gold deposit.