地质与勘探2025，Vol.61Issue(4)：762-775,14.DOI:10.12134/j.dzykt.2025.04.008
多尺度地球化学数据的联系与成因:以黔西南灰家堡金矿田为例
The Links and Their Genesis Between Different-Scale Geochemical Data:A Case Study of the Huijiabao Gold Field,Southwest of Guizhou Province
摘要
Abstract
To deeply explore the metallogenic information carried by multi-scale geochemical data,it is essential to systematically analyze their similarities,differences,and genetic relationships,and to establish intrinsic links between different datasets,thereby providing a scientific basis for mineral resource exploration and prediction.Taking the Huijiabao gold field in the"Golden Triangle"area of the Yunnan-Guizhou-Guangxi region as a case study,this paper employs isometric log-ratio transformation(ILR)and principal component analysis(PCA)to conduct multiscale statistical analysis on As,Au,Hg,and Sb elements from 1∶200000 scale stream sediment geochemical data and As,Au,Hg,Sb,and Tl elements from 1∶10000 scale structural geochemical data.Statistical calculations and analysis reveal that the Au-Hg association in stream sediment data contains both direct metallogenic information related to gold mineralization and interference signals caused by other hydrothermal activities(e.g.,mercury-bearing fluids).By comparison,the As-Sb association covaries consistently in both two scales of geochemical data,making this element association be an effective indicator for large-scale geochemical analysis and gold-antimony deposit exploration.Furthermore,the close spatial association between Au and Tl in 1∶10000 structural geochemical data suggests that the spatial distribution characteristics of Tl and its relationship with fault structures can aid in prospecting of buried gold deposits.关键词
多尺度/化探数据/成分数据/灰家堡金矿田/黔西南Key words
multi-scale/geochemical data/compositional data/Huijiabao gold field/southwest of Guizhou Province分类
天文与地球科学引用本文复制引用
丰玉涣,于萍萍,刘向冲,张文高,肖昌浩,杨富强,禹斌,王旭..多尺度地球化学数据的联系与成因:以黔西南灰家堡金矿田为例[J].地质与勘探,2025,61(4):762-775,14.基金项目
中国冶金地质总局科研项目(编号:CMGBKYS202403)、深地国家科技重大专项(编号:2024ZD1001705)、中央引导地方科技发展资金项目(编号:25ZYJA023)、自然资源部基岩区矿产资源勘查工程技术创新中心开放基金(编号:MREBZ-2023-OF02)和中国地质调查局地质调查项目(DD20242867、DD20240127、DD20242868)联合资助. （编号:CMGBKYS202403）
