The Discussions on Some Problems of Sandstone Type Uranium Ore by Using Uranium Isotopes

Based on the studies of uranium isotope characteristics in the front of ore roll and uranium-bearing layer in the 512 deposits,the forming processes and ore prospecting markers of uranium isotopes are discussed.The results indicate that the forming process of the sandstone type uranium deposit is a multi-phase rolling dynamic process from oxidation to reduction environment.The uranium ore body is mainly located in the sector Ⅲ.It is reasonable that the sector A should be named as the geochemical conflict sector according to the distributions of uranium isotope samples in the different oxidation-reduction zones and rolling features of forming process of the ore body.