| Abstract:Paleo-uplifts in sedimentary basins play a significant role in controlling the accumulation of oil and gas, and their impact on sandstone-type uranium mineralization should not be underestimated. Sandstone-type uranium deposits are typically located on the slopes at the margins of basins and near the uplifts within the basin. The constraints of uplifts on the sandstone-type uranium mineralization is specifically evident in the control of the recharge-runoff-discharge system of groundwater, regulation of interlayer oxidation reactions, influence on the development of sedimentary facies, promotion of material transport through associated faults, and supply of uranium for mineralization. Since the Cenozoic era, the sedimentary basins in northern China have undergone complex tectonic activities, resulting in the formation of multiple uplifts due to the uneven development within basins. Therefore, in uranium exploration in China, particular attention needs to be given to the control of uplifts on uranium mineralization. In this regard, exploration within the basin should focus on uplifts that have undergone significant tectonic uplift, while exploration on the slopes at the margins of basins should emphasize micro-uplifts and folds in overlying formations on the basement. Considering uplifts as key ore-controlling factors, selecting appropriate prospecting methods, and finely characterizing the anticlines, folds, and associated faults formed by the uplift of the basin basement can effectively enhance the efficiency of uranium prospecting and expand the uranium prospecting space. |
