论文部分内容阅读
据对某大型古岩溶型铀矿床中铀－铅同位素体系及硫、碳、氧、氢同位素组成的研究结果，表明该矿床成矿物质源自矿区众多地层，成矿流体的变质水和古岩溶水（古大气降水）的混合水；成矿经历了古岩溶铀淋积富集，燕山早、晚期构造运动促使两次含铀热水溶液改造、叠加成矿（１３５～１１９．６５Ｍａ），成矿作用与古岩溶和区域地质构造演化密切相关，属古岩溶型热造铀矿床
According to the results of a uranium-lead isotope system and the isotopic compositions of sulfur, carbon, oxygen and hydrogen in a large karstific uranium deposit, it shows that the ore-forming materials of the deposit originated from many strata of the mining area, metamorphic water and paleokarst Water (Paleo-Atmospheric Precipitation). The mineralization underwent the enrichment of ancient karst uranium deposits. The early and late Yanshan tectonic movements resulted in the alteration of two uranium-containing hot aqueous solutions by superimposing mineralization (135-119.65 Ma), mineralization Its function is closely related to paleokarst and regional geological tectonic evolution, and is an ancient palaeosol-typed uranium deposit