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Preliminary discussion on uranium metallogenic models of China's in-situ leachable sandstone-type uranium deposits
Author(s): 
Pages: 139-145
Year: Issue:  3
Journal: URANIUM GEOLOGY

Keyword:  可地浸砂岩型铀矿伊犁盆地吐哈盆地鄂尔多斯盆地成矿模式;
Abstract: 本文通过综合分析伊犁盆地南缘、吐哈盆地西南缘、鄂尔多斯盆地东北部地区等可地浸砂岩型铀矿重点成矿区的成矿环境和主要控制因素,探讨了我国可地浸砂岩型铀矿的成矿模式,认为伊犁盆地南缘、吐哈盆地西南缘层间氧化带型铀矿床主要受有利的构造、沉积建造和层间氧化带控制,具有含矿建造铀预富集、表生后成改造成矿及矿后构造活动进一步叠加富集的特征,而鄂尔多斯盆地东北部地区的铀矿化主要受古层间氧化带型铀矿化控制,并遭受二次还原的改造作用,其矿化规模显得较前者更大.
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