物探与化探2025，Vol.49Issue(2)：411-421,11.DOI:10.11720/wtyht.2025.2505
因子分析在地球化学分区中的应用及指示意义
Application of factor analysis in geochemical zoning and its implications:A case study of 1∶50,000 stream sediment survey in the Juxian-Wulian area,Shandong Province
摘要
Abstract
This study investigated data from a 1∶50,000 stream sediment survey in the Juxian-Wulian area,Shandong Province using factor analysis.By extracting eight representative factors,this study identified element assemblage types.Then,this study performed geochemical zoning based on the factor scores and discussed the relationships between various sub-zones and their geological back-ground.Based on the geochemical zoning results,as well as geological conditions for mineralization,this study determined favorable geological bodies and prospecting targets and discovered new prospecting clues.The most significant mineralization combination in this area is Au-Cu-Ag-Mo-Bi,followed by Pb-Zn;The V-Ti-Co-Mn combination and Ni-Cr combination can serve as exploration elements,indicating that there may be favorable mineralization mechanisms in the center and deep parts of the combination anomaly zone.Finding volcanic craters and hidden explosive breccia tubes in the distribution areas of volcanic rocks in this region or area is an important di-rection for mineral exploration;In the area of Shichang Fangzi Village in the eastern part of the research area,there is a comprehensive zoning with a F2-F4-F1 three factor combination model.The Mesozoic Buliu sequence and Weideshan sequence rock bodies are favora-ble geological bodies for mineralization,and the NE trending structural belt is a favorable place for mineralization,indicating the direc-tion of prospecting.关键词
因子分析/地球化学分区/水系沉积物/成矿预测/找矿方向Key words
factor analysis/geochemical zoning/stream sediment/metallogenic prediction/prospecting target分类
地质学引用本文复制引用
卢文东,乔娜,孙斌,李光杰,魏伟,夏小兴,潘丙磊,沙晴,吕小红,李元春..因子分析在地球化学分区中的应用及指示意义[J].物探与化探,2025,49(2):411-421,11.基金项目
山东省地质勘查基金项目(鲁国土资字[2015]317号) （鲁国土资字[2015]317号）
