砂体发育特征决定了铀矿体的分布，通过对乌库尔其铀矿床中侏罗统西山窑组上段Ⅶ1及Ⅶ2两个亚旋回砂体厚度特征的分析，得出了砂体构形变化的部位是成矿的有利部位，即砂体厚度由厚变薄的过渡地段，有利于铀矿的富集。此外，铀矿体主要赋存于孔隙度较高、渗透性较好的长石岩屑类粗砂岩、含砾粗砂岩和中砂岩中，成矿最好的粒度为粗砂岩。%The development characteristics of sandbody determines the distribution of uranium ore , according to the Middle Jurassic section Ⅶ 1 and Ⅶ 2 Xishanyao formation of the Wukurqi uranium deposit on two sub‐cycles sand thickness and sand than features analyze ,and the sand conformational change parts of the site are favorable mineralization ,thick sand thickness by thinning the transition area is conducive to the enrichment of uranium ore .Besides ,uranium ore mainly occur in high porosity and permeability of the better class of coarse lithic feldspathic sandstone ,pebbly sandstone and coarse sandstone ,the best mineralization granularity is coarse sandstone .
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