地质与勘探2025，Vol.61Issue(2)：243-255,13.DOI:10.12134/j.dzykt.2025.02.003
东天山黄山铜镍成矿带遥感地质成矿预测
Metallogenic Prediction of the Huangshan Copper-Nickel Metallogenic Belt in the Eastern Tianshan Based on Remote Sensing Images and Geology
摘要
Abstract
The remote sensing technology has achieved significant progress in lithological classification,structural interpretation,and alteration extraction,which has laid a robust foundation for remote sensing-based metallogenic analysis.Taking the Huangshan area in eastern Tianshan as an example,this study used the Landsat OLI data,ASTER data,and ASTER GDEM data to extract information of mafic-ultramafic complexes,lineaments,and alteration minerals through band ratio analysis,edge detection,and principal component analysis.A comprehensive metallogenic prediction was then made by integrating the distribution characteristics of known copper-nickel sulfide deposits in the region.Results demonstrate that:(1)The integrated mafic index,constructed using ASTER thermal infrared data,effectively identifies the morphology and distribution of mafic-ultramafic complexes.(2)Major fault structures in the study area were reflected in the GDEM data,and the lineaments extracted using edge detection align with the regional tectonic background,serving as a valuable supplementary to fault analysis in metallogenic analysis.(3)Analysis of the distribution of copper-nickel deposits reveals that favorable mineralization zones are associated with areas where mafic rock masses overlap with alteration anomalies,densely distributed fault and linear structures,and tectonic intersections.Based on these findings,15 prospective metallogenic zones were delineated,four of which exhibit strong concordance with known Cu-Ni sulfide deposits.The other 11 zones were classified into three levels based on their metallogenic potential,which will provide critical technical support for mineral exploration in the region.关键词
镁铁-超镁铁质岩/线性构造/蚀变信息/遥感成矿分析/黄山铜镍成矿带/东天山Key words
mafic-ultramafic rocks/lineaments/alteration information/remote sensing metallogenic analysis/Huangshan Cu-Ni metallogenic belt/eastern Tianshan分类
天文与地球科学引用本文复制引用
陈炜,吝路军,刘磊,张群佳,王乐..东天山黄山铜镍成矿带遥感地质成矿预测[J].地质与勘探,2025,61(2):243-255,13.基金项目
陕西省自然科学基础研究计划项目(编号:2023-JC-ZD-18)和自然资源部黄河上游战略性矿产资源重点实验室开放课题资助项目(编号:YSMRKF202203)联合资助. （编号:2023-JC-ZD-18）
