物探与化探2017，Vol.41Issue(1)：71-78,8.DOI:10.11720/wtyht.2017.1.11
安徽宁国东山坞地区土壤地球化学特征与评价
Characteristics and evaluation of soil geochemical anomalies in Dongshanwu area, Ningguo, Anhui Province
摘要
Abstract
The Dongshanwu area lies in northeastern Jiangnan orogenic belt,where stream anomalies of Au-As-Sb were delineated in 1989,and 2 603 soil samples were collected in 2011 for analysis ofAu,Ag,Cu,Pb,Zn,As,Sb,Bi,W and Mo.According to mathematical geological analysis and single element anomaly evaluation,the authors hold that they belong to normal distribution except As.Au has a close affinity with As,Sb has a close affinity with Ag and Mo,and Ag and Mo have high background values.The concentration Clarke values and variation coefficients of Sb indicate that Sb were involved in mineralization.Drilling has already revealed Sb orebody,suggesting that the area has a good potential of Sb.Au anomalies are in accord with As anomalies,and Au is a concentrated element and has the biggest variation coefficient,suggesting that Au is unevenly distributed,Au mineral alteration is in accord with the tectonic belt,and Au is positively related to silicification.Through soil geochemical survey,4 synthetic anomaly belts were delineated in Dongshanwu area,among which,Ⅰ,Ⅱ and Ⅳ have better prospecting potential.In addition,the authors detected that Sb and Au ores resulted from the superimposition of geological activities of different epochs.关键词
江南隆起/东山坞/土壤地球化学/因子分析/异常查证Key words
Jiangnan orogenic belt/Dongshanwu/soil geochemical survey/factor analysis/anomaly verification分类
天文与地球科学引用本文复制引用
章贤能,寇尚文,刘艾华..安徽宁国东山坞地区土壤地球化学特征与评价[J].物探与化探,2017,41(1):71-78,8.基金项目
安徽省地质勘查基金项目(2011-1-18) （2011-1-18）
