铀矿地质2025，Vol.41Issue(6)：1114-1125,12.DOI:10.3969/j.issn.1000-0658.2025.41.077
CSAMT法在柴北缘绿梁山地区砂岩型铀矿勘查中的应用研究
Applied Research of CSAMT Method in the Exploration of Sandstone-type Uranium Deposits in Lyuliangshan Area of Northern Margin of Qaidam Basin
摘要
Abstract
Among the types of uranium deposits in China,sandstone-type uranium deposits the Mesozoic-Cenozoic basin occupy an important position and become the main target of uranium prospecting in recent years.Qaidam basin is an important Mesozoic and Cenozoic sedimentary basin in northern China,which has favorable conditions for sandstone-type uranium deposit the northern margin of Lyuliangshan area.In order to find out the stratigraphic structure,the distribution,thickness and buried depth of the sand body in the target layer in Lyuliangshan area,CSAMT measurement were conducted by the side of boreholes to establish the corresponding relationship between the electrical layers and the actual strata by combining with the collected physical property data.After the electrical distribution of the sand body were roughly determined for the target layer,the distribution to target layer were inferred and interpreted.A"complex"fold of"two uplifts sandwiching one depression"was found in the Lyuliangshan area.The maximum burial depth of the target layer is 700 m with a sand body of 0.5～6.0 km in length,3～300 m in thickness buried in the depth of 90～700 m.After drilling verification,a multi-layer thick sand body was exposed with two uranium mineralization holes and one abnormal hole,which provide good geological prospecting clues.Therefore,this method can be used to guide the deployment of drilling work and can provide important technical means for sandstone type uranium deposit exploration.关键词
CSAMT法/柴达木盆地/绿梁山/砂岩型铀矿Key words
CSAMT method/Qaidam basin/Lyuliangshan/sandstone-type uranium deposit分类
地质学引用本文复制引用
郗昭,陈擎,陈云杰,陈斌,邵恒博,吴博博..CSAMT法在柴北缘绿梁山地区砂岩型铀矿勘查中的应用研究[J].铀矿地质,2025,41(6):1114-1125,12.基金项目
中国核工业地质局项目(编号:202219、202419-2、202519-1、202519-3、202519-6和202519-7)联合资助. （编号:202219、202419-2、202519-1、202519-3、202519-6和202519-7）
