Metallogenic Conditions and Prospecting Target of Sand Type Uranium Deposits in the Tuanyushan Area of Northern Qaidam Basin

The Tuanyushan area has been taken as the research subject in this paper, the previous coalfield drilling data has been systematically analyzed, and the radioactive anomalies have been verified in this paper. And then, the metallogenic conditions of sandstone-type uranium deposits have been discussed, such as uranium source condition, lithology and lithofacies, tectonic conditions, terrain and landform characteristic, hydrogeologic conditions and oxidation-reduction environment. The results show that the Tuanyushan area has favorable conditions for uranium mineralization. According to the metallogenic characteristics of this studying area, it is indicated that the sandstone in the lower member of Middle Jurassic Shimengou Formation is a favorable mineralization horizon, with metallogenic type of interlayer oxidation zone type. Therefore, it is suggested that the interlayer oxidation zone should be pursued southward as a favorable target area.