物探与化探2025，Vol.49Issue(3)：538-547,10.DOI:10.11720/wtyht.2025.1236
戈壁区效率可调动态地气法探测隐伏砂岩铀矿的试验及效果
Experiments and effects on prospecting for concealed sandstone-type uranium deposits in a gobi desert region using the dynamic geogas method with adjustable efficiency
摘要
Abstract
Experiments on prospecting for concealed sandstone-type uranium deposits using the dynamic geogas method were conducted in a gobi desert region by deploying a survey line in each known sandstone-type uranium deposit and uranium ore occurrence.The re-sults indicate that the dynamic geogas sampling technology with adjustable efficiency detected geogas anomaly zones above all known concealed sandstone-type uranium deposits.These zones were characterized by multiple adjacent anomaly peaks composed primarily of uranium(U)and multiple associated(paragenetic)elements,with widths approaching those of the surface projections in a range from the ore bodies with a burial depth of approximately 50 m to the boundaries of the ore bodies'overturning ends.Therefore,the geogas a-nomaly zones and their widths serve as important ore-prospecting indicators for concealed sandstone-type uranium deposits.The rela-tionships of captured geogas anomalies with factors such as the depths and grades of ore bodies in the experimental area confirm that the dynamic geogas method with adjustable efficiency can detect concealed sandstone-type uranium deposits at depths exceeding 756.4 m.The relationships also reveal that the amplitude of U geogas anomalies increases with the ore body grade and that the spacing between geogas detection points on the profile for sandstone-type uranium deposits should not exceed 50 m.The experiment corroborates that the geogas method is feasible and effective in detecting concealed sandstone-type uranium deposits in a gobi desert region.关键词
地气法探测隐伏砂岩铀矿试验/效率可调动态地气法/地气找矿标志Key words
experiment on prospecting for concealed sandstone-type uranium deposits using the geogas method/dynamic geogas tech-nology with adjustable efficiency/ore-prospecting indicator for geogas分类
天文与地球科学引用本文复制引用
刘国安,周四春,刘晓辉,李盛富,张明正,秦明宽,许强,王广西,胡波..戈壁区效率可调动态地气法探测隐伏砂岩铀矿的试验及效果[J].物探与化探,2025,49(3):538-547,10.基金项目
国防科工局核能开发项目(地HTLM2101) （地HTLM2101）
