物探与化探2016，Vol.40Issue(1)：27-32,6.DOI:10.11720/wtyht.2016.1.05
土壤地球化学测量在黔东八瓢达冲金矿勘查中的应用与找矿效果
The application of soil geochemistry survey to prospecting in the Bapiao Dachong gold ore district of eastern Guizhou Province and its effect
摘要
Abstract
Through the implementation of 1:5 000 soil geochemical survey, the authors determined the indicator elements of Au, Cu, Pb, As and Zn. By choosing the traditional statistical method, the authors calculated the threshold of each element in the soil, i.e., Au is 6× 10-9, Cu is 30×10-6, Pb is 40×10-6, Zn is 150×10-6, and As is 50×10-6. On such a basis, a group of valuable geochemical anomaly ar-eas were detected. The prospecting potential of the geochemical anomaly area were analyzed in detail. In combination with favorable ore-controlling factors such as strata, lithology and structure, the authors synthetically evaluated main ore-forming elements and the abnormal element combination, and then selected three prospecting target areas. In No.Ⅰanomaly target zone, Au, As, Cu and Pb have good spatial assembly;M1-M7 gold-bearing quartz vein bodies were detected, and No. I, No.Ⅱ orebodies were delineated in No.Ⅲanomaly target area in the western part, and anomalies of Au, As and Zn are well superimposed upon each other. M11, M12, M13 gold-bearing quartz vein bodies were found, and No.Ⅲ orebody was delineated by verification engineering. Through the drilling and trenching engineering verifica-tion of the anomaly, the anomaly locations, sizes and trends were determined, which accord well with the newly found orebodies ( ore spots) , suggesting that soil geochemical survey is effective in the study area and hence deserves promotion in the neighboring areas.关键词
土壤地球化学测量/元素异常/找矿潜力/工程验证/八瓢达冲金矿区Key words
soil geochemistry survery/element anomaly/prospecting potential/engineering verification/Bapiao Dachong gold ore district分类
天文与地球科学引用本文复制引用
刘珊,陈亮,段先哲,胡杨,王正庆,韩世礼,马强..土壤地球化学测量在黔东八瓢达冲金矿勘查中的应用与找矿效果[J].物探与化探,2016,40(1):27-32,6.基金项目
国家自然科学基金项目(41402002) （41402002）
湖南省教育厅项目(15C1175) （15C1175）
