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鄂尔多斯盆地南部彬长地区砂岩型铀矿三维地质建模及意义OACSTPCD

3D Geological Modeling and Its Geological Significance of the Sand-type Uranium Deposit in Binchang Area,Southern Ordos Basin

中文摘要英文摘要

建立三维数字地质模型可以实现各类地质实体、构造等要素及其相互关系的三维空间展布和可视化,挖掘矿床深部及外围隐伏矿体,从而达到深部找矿预测的目的.文章在收集和处理彬长地区基础地质和铀矿相关资料的基础上,利用三维建模平台建立了地形地貌模型、钻孔模型、地层模型、断裂构造模型、含矿目的层直罗组下段辫状河推测河道中心线模型、氧化—还原过渡带模型、矿体模型,实现了各成矿要素及其之间的关系三维可视化.对彬长地区进行了三维地质模型分析,结合区域砂岩型铀矿成矿地质背景及成矿规律,认为彬县亭口镇-炭店具有较好的铀矿成矿条件,是鄂尔多斯盆地南部重要的铀矿找矿远景区.研究成果为该区域下一步找矿预测、铀矿勘查及深钻布设等工作提供新的证据,具有重要指导意义.

The three-dimensional spatial distribution of geological bodies and their relationships can be effectively portrayed through 3D digital geological models.These models enable the excavation of deep and peripheral hidden ore bodies,facilitating deep prospecting and prediction.Upon gathering and processing relevant data on basic geology and uranium deposits in the Binchang area,the SKUA-GOCAD three-dimensional platform was utilized to develop topographic,geomorphic,borehole,stratum,fault structure,sand body,river center line,and ore-bearing target layer models in the lower Zhiluo formation.Additionally,oxidation-reduction transition zone and ore body models were created.The three-dimensional visualization of ore-forming elements and their relationships is achieved through the establishment of a three-dimensional geological model.This model,combined with the regional geological background of sandstone type uranium deposits'the metallogenic regularity,was analyzed.It is believed that Tingkouzhen Tandian in Binxian County possesses more favorable uranium ore-forming conditions and is thereby considered an essential uranium prospecting area in the southern region of the Ordos Basin.The research findings provided novel evidence for further,uranium exploration,and deep drilling layouts within the study area,thereby holding significant prospecting guiding implications.

曹珂;朱鹏飞;阿的阿加;刘琳莹;白芸;王思宇;尹锦宇;孔维豪

核工业北京地质研究院,北京 100029中国地质大学(北京),北京 100083中国地质调查局自然资源综合调查指挥中心,北京 100055

地质学

砂岩型铀矿三维地质建模彬长地区鄂尔多斯盆地

sandstone type uranium depositthree-dimensional geological modelingBinchang areaOrdos Basin

《铀矿地质》 2024 (001)

81-89 / 9

中核集团集中研发项目"基于大数据的砂岩型铀矿三维预测技术研究"(编号:地SD04)资助.

10.3969/j.issn.1000-0658.2024.40.007

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