华南地质2025，Vol.41Issue(2)：421-435,15.DOI:10.3969/j.issn.2097-0013.2025.02.015
多元统计分析在广西镇龙山穹窿七星山调查区土壤地球化学找矿中的应用
Application of Multivariable Statistical Analysis in Soil Geochemical Prospecting in the Qixingshan Survey Area,Zhenlongshan Dome,Guangxi
摘要
Abstract
To reveal the elemental associations and enrichment patterns in the Zhenlongshan Dome-Qixingshan Survey Area,Guangxi,establish anomaly identification criteria,and provide a soil geochemical basis for the prospecting of deep-seated concealed polymetallic deposits,this study utilized GeoChem Studio and SPSS 25 software to conduct parameter statistics and multivariate statistical analysis(correlation analysis,R-mode cluster analysis,and R-mode factor analysis)on soil geochemical data of nine elements.Correlation analysis demonstrated moderate correlations of Ag-Pb,As-W,Cu-Zn,weak correlations of As-Au,Au-W,Cu-Mo,Mo-Zn,and Sb is also weakly correlated with Ag,As,Au and Pb.Cluster analysis categorized the elements into three groups:Group I(Ag,Pb,Sb),Group II(As,W,Au),and Group III(Cu,Zn,Mo).Based on factor analysis results,three sets of factor score(elements association)anomalies were mapped,and a spatial distribution model of the elements was constructed.These three element assemblages form vertical zoning:Pb-Ag-Sb in the shallow subsurface,As-W-Au in the middle zone,and Cu-Zn-Mo at deeper levels.This vertical spatial pattern suggests a potential transition of deposit types from hydrothermal deposits near the surface to porphyry-type deposits at depth,forming a metallogenic series comprising different deposit types and mineral species in vertical space within the study area.关键词
土壤地球化学/多元统计分析/因子得分异常/找矿/镇龙山穹隆/广西Key words
soil geochemistry/multivariable statistical analysis/factor scores anomaly/prospecting/the Zhenlongshan dome/Guangxi分类
天文与地球科学引用本文复制引用
梁明建,黄锐,张武饰,陈良,杨珊福..多元统计分析在广西镇龙山穹窿七星山调查区土壤地球化学找矿中的应用[J].华南地质,2025,41(2):421-435,15.基金项目
广西壮族自治区地质矿产勘查开发局项目(桂地矿地[2022]12号) （桂地矿地[2022]12号）
