世界核地质科学2026，Vol.43Issue(1)：66-78,13.DOI:10.3969/j.issn.1672-0636.2026.01.005
土壤氡测量在砂岩型铀矿勘查中的应用研究
Application of soil radon measurement in sandstone-type uranium deposit exploration:a case study of Chagandelesu area
摘要
Abstract
In order to rapid evaluate of sandstone-type uranium deposit prospecting,the soil radon measurement method was applied in the central area of Chagandelsu depression.The measurement data were statistically analyzed and processed.In calculating the lower abnormal limit of radon concentration values,three different extraction methods were compared,and the applicability of each method was analyzed.Comparative studies have found that the multifractal method can make full use of original data and weak anomaly information,effectively reduce interpolation interference,and has the best radon anomaly indication effect,which is closer to the reality of handling high value anomaly.Combined with the extracted lower limits of soil radon concentration anomalies,the formation and distribution characteristics of radon anomalies were summarized.It was found that the abnormal distribution range of soil radon in the measurement area is controlled by depression strata and faults.High-value and high-contrast radon anomalies often exist and form above the Yingen formation sand bodies at the front edge of the braided river delta in ancient channels.Based on this comprehensive interpretation,a total of three radon anomalies,CG-1,CG-2 and CG-3,were delineated the favorable areas for uranium mineralization.This study not only provided supporting basis for later drilling layout in chagandelesu area,but also presented an example reference for soil radon measurement,prospecting and anomaly delineation in similar uranium mining areas.关键词
土壤氡浓度/异常下限提取/成矿预测/砂岩型铀矿/查干德勒苏地区Key words
soil radon concentration/anomaly lower limit extraction/mineralization prediction/sandstone-type uranium deposit/Chagandelesu area分类
天文与地球科学引用本文复制引用
宋亮,王勇,刘武生,贾立城,王东升,吴国东..土壤氡测量在砂岩型铀矿勘查中的应用研究[J].世界核地质科学,2026,43(1):66-78,13.基金项目
核技术研发项目"戈壁-沙漠覆盖区深部铀矿化信息探测技术研究"(编号:物H2401-2-5)"资助 Supported by Nuclear Technology R&D Program"Research on Deep Uranium Mineralization Information Detection Technology in Gobi Desert and Desert Covered Areas"(No.H2401-2-5) （编号:物H2401-2-5）
