物探与化探2026，Vol.50Issue(3)：409-420,12.DOI:10.11720/wtyht.2026.1430
高寒浅覆盖景观区深穿透地球化学勘查技术应用与示范
Application and demonstration of deep-penetrating geochemical exploration techniques in alpine shallow overburden areas
摘要
Abstract
This study aims to address the technical challenges in exploring concealed ore bodies in alpine shallow overburden areas.Hence,it conducted the application test and demonstration of deep-penetrating geochemical exploration techniques in two typical land-scape areas:the low-to-middle mountainous desert steppe and the alluvial-proluvial gravelly Gobi along the periphery of the Qaidam Basin.The results show that the proportions of fine-grained(d≤96 μm),micro-fine-grained(d≤20 μm),and ultra-fine-grained(d≤5 μm)materials in the overburden serve as the core basis for evaluating the effectiveness and adaptability of deep-penetrating geochemi-cal exploration techniques.Through the multi-technique effectiveness tests conducted in the Relong and Yuka gold deposits,the differ-ences in application efficiency of various techniques across different landscape areas were clarified.The measurement of micro-fine-grained soils was employed for a large-scale demonstration application,with the delineated anomalies highly coinciding with the known mineralized zones.Moreover,a concealed ore body with a gold grade of up to 3.85 g/t was discovered in the Relong gold deposit.Final-ly,a three-level technical combination,consisting of regional reconnaissance,anomaly verification,and ore body positioning,was pro-posed for alpine shallow overburden areas.Overall,the results of this study provide technical support for the exploration of concealed ore bodies in similar areas.关键词
高寒浅覆盖区/深穿透地球化学勘查/柴达木盆地周缘Key words
alpine shallow overburden area/deep-penetrating geochemical exploration/periphery of the Qaidam Basin分类
天文与地球科学引用本文复制引用
马瑛,黄强,牛尧,孙彬彬,张浩,张建平,马宁,水应东,冶建虎..高寒浅覆盖景观区深穿透地球化学勘查技术应用与示范[J].物探与化探,2026,50(3):409-420,12.基金项目
深地国家科技重大专项(2024ZD1002400) （2024ZD1002400）
青海省财政地质勘查专项资金项目(2024524032ky006) （2024524032ky006）
青海省地矿局计划项目(青地矿[2025]76号) （青地矿[2025]76号）
