土壤氡气和分量化探技术在西岩地区铀矿勘查中联合应用研究  

Study on the Combined Measurement Application of Soil Radon and Partial Extracted Elements for Uranium Exploration in Xiyan Area

作　　者：刘琛琛[1,2] 史春旺 付昆丰 方翔宇 周乾 LIU Chenchen;SHI Chunwang;FU Kunfeng;FANG Xiangyu;ZHOU Qian(Anhui Nuclear Exploration Technology central Institute,Wuhu,Anhui 241002,China;Radiological Resources and Environmental Engineering Research Center,Wuhu,Anhui 241002,China)

机构地区：[1]安徽省核工业勘查技术总院,安徽芜湖241002 [2]安徽省地质矿产勘查局放射性资源与环境工程研究中心,安徽芜湖241002

出　　处：《铀矿地质》2024年第6期1182-1192,共11页Uranium Geology

基　　金：安徽省公益性地质调查基金项目“安徽省池州市葛公镇-占大镇地区碳硅泥岩型铀矿调查评价”(编号:2021-g-1-1)资助。

摘　　要：西岩地区位于修水-宁国碳硅泥岩型铀成矿带中段,为更好预测研究区深部铀成矿潜力,探索土壤氡气和分量化探技术在碳硅泥岩型铀矿勘查工作中的联合应用效果,研究采用土壤氡气和分量化探联合测量的工作方法,通过圈定氡浓度异常,铀分量异常,同时对分量元素进行相关性分析、R型聚类分析等,提取与铀成矿相关信息,结合伽马能谱测量结果预测深部铀成矿潜力,并进行钻探揭露验证。结果显示,氡浓度异常与铀分量异常复合区深部存在工业铀矿化,经分量化探元素R型聚类、异常特征分析,揭示U-Mo-Se-V-Ag-P分量异常组合可以作为研究区铀矿勘查的地球化学标志。表明土壤氡气和分量化探联合测量对于碳硅泥岩型铀矿深部预测具有有效性和可行性,为今后碳硅泥岩型铀矿勘查提供新的方法组合。Located in the central segment of Xiushui-Ningguo carbonaceous-siliceous-argillaceous type uranium mineralization,Xiyan area is favorable for uranium mineralization.In order to predict the deep uranium mineralization potential,this study employed a combined approach of soil radon measurement and partial extracted element measurement in exploring carbonaceous-siliceous-argillaceous type uranium deposit.The methodology included delineating anomalies in radon concentration and partial extracted uranium,performing correlation and R-type cluster analyses of component elements and extracting information related to uranium mineralization.Predictions of deep uranium mineralization potential were made by integrating gamma spectrometry measurement results,which were subsequently verified by drilling.The results revealed the economical uranium mineralization at depth in areas with combined anomalies in radon concentration and partially extracted uranium.Through R-type cluster analysis of multicomponent survey and anomaly characteristic analysis,a geochemical signature for uranium exploration in the study area was identified,comprising anomalies in the U-Mo-Se-V-Ag-P element association.The combination of soil radon and partial extracted element measurement was proven effective and feasible for predicting deep uranium deposits of carbonaceous-siliceous-argillaceous type,which provide a new approach for the future exploration.

关 键 词：土壤氡气 分量化探 碳硅泥岩型铀矿 西岩地区 

分 类 号：P619.14[天文地球—矿床学]