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治岭头金-银矿床成矿热液的主体是来自下渗的大气降水。矿化作用发生在印支-燕山早期的一个下渗雨水加热环流系统中。成矿温度为160-350℃,成矿深度小于2km。矿化热液呈酸性,氧化性较强,贫硫,Cl~-活度和盐度中等。Au和Ag以AuCl_2~-和AgCl_2~-的形式进行迁移,并在扩容减压带中沉淀聚集。减压和沸腾是流体卸载的重要机制。热液呈间歇性贯入,溶液沸腾具脉动特征。加热雨水中高价锰系统对Au、Ag的氧化,是陈蔡群地层中Au和Ag活化进入溶液中并促使成矿的另一辅助机制。
Zhuling head gold - silver ore mineralization hydrothermal fluid is mainly from the infiltration of precipitation. Mineralization occurred in the Indo-Early Yanshanian infiltration rainwater heating circulation system. The metallogenetic temperature is 160-350 ℃ and the metallogenic depth is less than 2km. The mineralized hydrothermal solution is acidic, strong oxidizing, sulfur-poor, Cl ~ - activity and salinity moderate. Au and Ag migrated in the form of AuCl_2 ~ - and AgCl_2 ~ - and precipitated and accumulated in the decompression zone. Decompression and boiling are important mechanisms for fluid unloading. Hydrothermal intermittent penetration, boiling solution with pulsating characteristics. The oxidation of Au and Ag by high temperature manganese in the rainwater system is another auxiliary mechanism for activation of Au and Ag into the solution in the Chencai Formation.