| 隆起对砂岩型铀矿成矿的控制及找矿启示 |
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| 关键词:sandstone-type uranium deposit uplift tectonic slope zone interior of the basin ore-forming fluids |
| 基金项目:中国铀业有限公司-东华理工大学核资源与环境国家重点实验室联合创新基金项目(编号: 2023NRE-LH-08; NRE2021-02);国家自然科学基金项目(编号: U2244205; U2067202; 42172098);中国核工业地质局科研项目(编号: 202311-5);中国核工业地质局调查评价项目(编号: 202212-8) |
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| Constraints of Uplift on Sandstone-type Uranium Mineralization and Its Implications for Prospecting |
| 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 basins. The constraints of uplifts on the sandstone-type uranium mineralization are particularly evident in the control of groundwater recharge-runoff-discharge system, the regulation of interlayer oxidation reactions, the influence on sedimentary facies development, the promotion of material transport through associated faults, and the 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 paid 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 of 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 uranium prospecting efficiency and expand the uranium prospecting space. |
| NIE Fengjun,YANG Shuqi,FENG Zhibing,XIA Fei,LUO Min,WANG Shouyu,ZHANG Bocheng.2024.Constraints of Uplift on Sandstone-type Uranium Mineralization and Its Implications for Prospecting[J].Acta Geoscientica Sinica,45(3):265-277. |
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