【摘要】 砂岩型铀矿床中有关稀土元素的研究较少,在国内仅有对物源的示踪和其配分形式特征的研究。通过对吐哈盆地稀土元素在层间氧化带各地球化学作用带中赋存特征的研究,探讨了稀土元素在层间氧化作用中可能有的迁移特点,并对稀土元素的总量、轻重稀土元素的比值及δEu和δCe值等进行了对比研究,探讨了以上参数变化与层间氧化带分带的关系,以及对铀矿化的指示意义。更多还原

【Abstract】 There were few of studies on rare earth elements(REE) in sandstone hosted uranium deposits,except the study of sediments source tracing and REE distribution modalities.Based on the study of existence characteristics of REE in subzones of interstratified oxidized zone in Shihongtan uranium deposit,Tuha basin,the possible migration features of REE was traced,and the significance of ΣREE,LREE/HREE ratios and δEu,δCe value during the interstratified oxidation were illustrated.更多还原