摘要
确立了吐哈盆地水中铀的存在形式，分析了铀在水中的迁移规律和沉淀条件。并运用层间氧化带的成矿机理，阐述了各地球化学分带的水文地球化学特征，引用“饱和指数”把铀在水中的饱和程度给予量化，从而确定了盆地水中铀的沉淀区间。利用γNa＋／γCl─和γCa＋＋／γCl─划分出水文地球化学分带及综合岩石地球化学分带，为寻找层间氧化带型铀矿提供了水文地球化学依据。指出艾丁湖自流水斜地为形成层间氧化带型铀矿的有利地段。
The occurence mode of uranium in water is determined and migration regularity and precipitating conditions of uranium in water are analyzed. Mineralization mechanism of intra-strata oxidization zone is applied to discuss hydrogeochemical characteristics of various geochemical zonations. And 'Saturated Index' is used to propose a quantitative calculation of uranium saturation in water and so determine the precipitation zone of uranium in water. Moreover γNa+/γCl- and γCa+/γCl- are applied to divide hydrogeochemical zonations and comprehensive lithogeochemical zonations, and so supply hydrogeochemical basis for searching uranium deposit of intra-strata oxidization zone type. Artesian water slope of Aiding lake is pointed as a favourable section for formation of uranium deposit of intra-strata oxidization zone type.
出处
《新疆地质》
CAS
CSCD
1997年第3期261-268,共8页
Xinjiang Geology
关键词
吐哈盆地
铀的存在形式
饱和指数
还原障
铀成矿
Turpan-Hami Basin
occurence mode of uranium
saturation index
reduction curtain uranium mineralization
