【摘要】 扎格依库都克金矿床产于下石炭统黑山头组一套火山-火山碎屑岩中,矿体呈脉状、网脉状,含矿岩石主要为含硫化物的石英脉。围岩蚀变以硅化、黄铁矿化、绢云母化、碳酸盐化为主。流体包裹体显微测温显示成矿流体温度165°C～284°C,盐度集中于6～14%NaCL.eq。含金石英脉H、O同位素结果显示其早期成矿流体为岩浆水和大气降水混合流体,中晚期以大气降水为主。矿石中黄铁矿S同位素具幔源硫特征。根据矿床地质特征与成矿流体性质,初步认为该矿床为浅成热液型金矿。更多还原

【Abstract】 The Zageyikuduke gold deposit occurs in a volcanic-pyroclastic rock formation of the Culm Heishantou Formation.The ore bodies are veined and reticulated in sulfide-bearing quartz.The wall rock alteration is dominated by silicification,pyritization,sericitization and carbonation.Microscopic temperature measurements of fluid inclusions show that the temperature of ore-forming fluid ranges from 165～284,and salinity is concentrated in 6%～14% Na CL.eq.The results of H and O isotopes of gold-bearing quartz veins in the deposit indicate that the early ore-forming fluid is a mixture of magmatic water and meteoric water,but the latter is dominated by meteoric water.The sulfur isotope test results of pyrite in ore show that the sulfur in ore-forming hydrothermal solution has the characteristics of mantle-derived sulfur.According to the geological characteristics,fluid properties and source of the deposit,it is preliminarily considered that the deposit type is epizonogenic hydrothermal deposit.更多还原