(1. 中南大学 有色金属成矿预测教育部重点实验室，长沙 410083;
2. 中南大学 地球科学与信息物理学院，长沙 410083)
摘 要: 为了解胶东金翅岭金矿成矿流体特征，开展流体包裹体研究。结果表明：矿石石英中主要发育H2O-CO2包裹体、富CO2包裹体和H2O溶液包裹体3种类型，成矿流体均一温度、盐度及密度分别为120~362 ℃，3.2%~9.0%，0.34~0.94 g/m3，为中低温、低盐度及低密度流体；包裹体液相成分阳离子以K+、Na+、Ca2+和Mg2+为主，阴离子以SO42−、Cl−和F−为主；气相成分以H2O、CO2和CH4为主。结合矿区前人研究，认为该成矿流体是多源流体混合并经历水岩反应演变而成。
关键字: 成矿流体；包裹体；金矿床；金翅岭
Jinchiling gold deposit in Jiaodong
（1. Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education,
Central South University, Changsha 410083, China;
2. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China）
Abstract:To clarify the characteristics of ore-forming fluid of the Jinchiling gold deposit, fluid inclusion study was carried out. The results show that the inclusions consist of three types: H2O-CO2, CO2 and H2O inclusions. The compositions of cation and anion ions in liquid and gas of the inclusions are mainly respectively Na+, K+, Ca2+, Mg2+; SO42−, Cl−, F−; H2O, CO2 and CH4. The homogenization temperature, salinity and density of the fluid inclusions for the mineralization change from 120 ℃ to 362 ℃, 3.2% to 9.0% and 0.34 g/m3 to 0.94 g/m3, respectively, which show that these inclusions belong to middle-low temperature, low salinity and low density fluid. Combined with analyses of other researches, it is found that the ore-forming fluid following water-rock reaction is the mixture of multi-source fluid during its evolution.
Key words: ore-forming fluid; fluid inclusion; gold deposit; Jinchiling
