Geochemical Anomalies Identified by Multifractal Modeling:Implications for Mineral Exploration in the Ziyoutun Cu-Au District,Jilin Province,China

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国家科技期刊平台
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外文摘要：The Ziyoutun Cu-Au district is located in the Jizhong-Yanbian Metallogenic Belt and possesses excellent prospects.However,the thick regolith and complex tectonic settings present challenges in terms of detecting and decomposition of weak geochemical anomalies.To address this challenge,we initially conducted a comprehensive analysis of l:10,000-scale soil geochemical data.This analysis included multivariate statistical techniques,such as correlation analysis,R-mode cluster analysis,Q-Q plots and factor analysis.Subsequently,we decomposed the geochemical anomalies,identifying weak anomalies using spectrum-area modeling and local singularity analysis.The results indicate that the assemblage of Au-Cu-Bi-As-Sb represents the mineralization at Ziyoutun.In comparison to conventional methods,spectrum-area modeling and local singularity analysis outperform in terms of identification of anomalies.Ultimately,we considered four specific target areas(AP01,AP02,AP03 and AP04)for future exploration,based on geochemical anomalies and favorable geological factors.Within AP01 and AP02,the geochemical anomalies suggest potential mineralization at depth,whereas in AP03 and AP04 the surface anomalies require additional geological investigation.Consequently,we recommend conducting drilling,following more extensive surface fieldwork,at the first two targets and verifying surface anomalies in the last two targets.We anticipate these findings will significantly enhance future exploration in Ziyoutun.

外文关键词：

geochemical anomaliesmultivariate statistical analysisspectrum-area modellocal singularity analysismineral prospectingJilin Province

作者：

MA Huchao、WANG Da、BAI Feng、LIU Meng、GONG Anzhou、HU Haiyan

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作者单位：

State Key Laboratory of Geological Processes and Mineral Resources,School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China

School of Gemmology,China University of Geosciences,Beijing 100083,China

Guizhou Nengda Electric Power Design Co.,Ltd.,Guiyang 550002,China

Chongqing Chuandongnan Survey & Design Institute Co.,Ltd.,Chongqing 400038,China

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基金：

Enterprise Authorized Item from the Jilin Sanhe Mining Development Co.,LtdFundamental Research Funds for the Central Universities

项目编号：

3-4-2021-120608

出版年：

2024

DOI：

10.1111/1755-6724.15185