物探与化探2025，Vol.49Issue(6)：1281-1290,10.DOI:10.11720/wtyht.2025.0123
青海松树南沟金矿区土壤地球化学特征及异常评价
Geochemical characteristics and anomaly assessments of soils in the Songshunangou gold mining area,Qinghai Province
摘要
Abstract
The Songshunangou gold mining area in Qinghai Province is situated in the central part of the North Qilian metallogenic/oro-genic belt.Two deposits have been identified in its eastern and western portions,with cumulative proven Au resources exceeding 34 t,establishing them as large-scale deposits.Moreover,the area holds significant potential for ore prospecting,necessitating an urgent need for research into prospecting orientations to support mineral exploration efforts.Hence,based on the anomaly analysis of 1∶10 000 soil geochemical survey data and employing the two-window moving average method,this study identified the anomaly distributions and en-richment patterns of 10 elements(i.e.,Au,As,Sb,Hg,Cu,Pb,Zn,Ag,W,and Mo)in the area.By analyzing elemental geo-chemical anomaly data and integrating the geological conditions for mineralization,this study delineated composite anomaly zones in the area using the average contrast method,followed by anomaly assessments.The results indicate that Au is the primary ore-forming ele-ment in the area,characterized by strong enrichment and significant variability,suggesting high mineralization potential.Seven com-posite soil geochemical anomaly zones were delineated in the area,with zones HP-1,HP-2,and HP-5 demonstrating the greatest po-tential for mineral exploration.Engineering validation confirms the presence of two ore/mineralized bodies,with one exhibiting an ore thickness of 1.5 m and a gold grade of 0.57 g/t in zone HP-2 and the other featuring an ore thickness of 1.42 m and a gold grade of 1.67 g/t in zone HP-5.Overall,this study provides geochemical evidence for determining prospecting orientations in the Songshu-nangou gold mining area while offering a reference for the deployment of subsequent mineral exploration work in the area.关键词
松树南沟金矿/土壤地球化学特征/综合异常/成矿预测/北祁连造山带Key words
Songshunangou gold mining area/soil geochemical characteristics/composite anomaly/metallogenic prediction/North Qilian orogenic belt分类
天文与地球科学引用本文复制引用
陈庚户,王旭辉,吴天文,罗超,郎兴海,王兆帅,董维财,王登科,向佐朋,李壮,叶紫枫,吴昌益..青海松树南沟金矿区土壤地球化学特征及异常评价[J].物探与化探,2025,49(6):1281-1290,10.基金项目
国家自然科学基金项目(42572103) （42572103）
国家重点研发计划项目(2022YFC2905000) （2022YFC2905000）
自然资源部新一轮找矿突破战略行动科技支撑项目(ZKKJ202405、ZKKJ202427) （ZKKJ202405、ZKKJ202427）
西藏自治区科技计划项目(XZ202401YD0066) （XZ202401YD0066）
四川省自然科学基金项目(2024NSFSC1954、2025ZNSFSC1196) （2024NSFSC1954、2025ZNSFSC1196）
科学技术部深地国家科技重大专项(SQ2024AAA060124-6) （SQ2024AAA060124-6）
威海市能源资源调查评价重点实验室开放课题(LDKF-2023WH-04) （LDKF-2023WH-04）
成都理工大学珠峰科学研究计划项目(2020ZF11407) （2020ZF11407）
