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《Journal of East China Institute of Technology(Natural Science)》 2008-04
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Study on the Relationships between the Structural Evolution and Sandstone-type Uranium Mineralization in Mesozoic Era and Cenozoic Era in the Northern of Chaidam Basin

LIU Lin, SONG Zhe, SONG Xian-sheng, FENG Wei(NO.203 Research Institute of Nuclear Industry, Xianyang, SX 712000, China)  
By detailed expounding the characteristics of the Mesozoic and Cenozoic structural evolution in northern of Chaidam basin,the author inquires into its relationships with the sandstone-type uranium mineralization,analyzes the prospect of forming uranium deposit,and thinks that the Mesozoic and Cenozoic strata are mainly controlled by the tectonic role of the later Yanshan movement and the later Cenozoic era. The north-west palaeo-structural slope belt is formed in the later Cretacous Epoch that is favorable for developing palaeo-interlayer oxidized zone. After the slightly extensional role of the oldest Tertiary and the early Pliocene,the middle and lower Jurassic were buried,and the block-imbricated slope belts are formed in the tectonic movement of the later Cenozoic, which are favorable for developing recent interlayer oxidized zone. According to drilling, it has the conditions for forming palaeo-recent interlayer oxidized zone sandstone-type uranium deposit at the northern of Chaidam basin. Finally,the author lays his finger on the prospecting of uranium.
【Fund】: 中国地质调查局“青海柴达木盆地地浸砂岩型铀资源调查评价”项目(1212010633006)
【CateGory Index】: P619.14
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