物探与化探2024，Vol.48Issue(5)：1302-1312,11.DOI:10.11720/wtyht.2024.1329
鄂西水月寺地区Landsat8-OLI遥感蚀变信息与地球化学奇异性异常信息融合应用
Integrated application of alteration information from Landsat8-OLI remote sensing images and geochemical singularity anomaly information for the Shuiyuesi area of western Hubei Province
摘要
Abstract
Prolonged intense magmatic-hydrothermal activity and regional metamorphism in western Hubei Province created favorable conditions for the formation of gold deposits.As the Shuiyuesi area witnessed a thorough exploration of surface and outcrop mines,the prospecting of gold deposits in the area has shifted to overburden and deep zones in recent years.However,the prospecting in the Shuiyuesi area becomes gradually complicated due to significant topographic relief,high vegetation coverage,and severe terrain cut-ting.Hence,efficient prospecting approaches are urgently needed to achieve breakthroughs in ore prospecting.Through geological sur-vey and analysis,this study statistically analyzed the alteration types intimately associated with gold mineralization in nine gold veins of the Shuiyuesi area.It extracted alteration information from Landsat8-OLI remote sensing images using methods like numerical opera-tions,and weak anomaly information of element distribution using methods like multivariate statistical analysis and local singularity a-nalysis.Employing the data integration technology,it integrated the alteration anomaly information from remote sensing images and the singularity anomaly information.Based on comprehensive information,such as geological settings for mineralization and metallogenic regularity,this study identified 19 metallogenic prospect areas and new anomaly clues in the Yangjiatang-Caishenmiao area.The novel approach combining singularity analysis and data integration enhanced the spatial resolution of geochemical anomalies,the spatial de-tails of surface features,and weak anomaly information associated with gold mineralization,thus enabling rapid and efficient identifica-tion and extraction of comprehensive anomalies and prediction of metallogenic prospect areas.关键词
地球化学异常/遥感蚀变异常/数据融合/远景区预测Key words
geochemical anomaly/alteration anomaly from remote sensing images/data integration/prospect area prediction分类
天文与地球科学引用本文复制引用
保其兵,杨朋,周舟,雷雳,夏庆霖,刘银,龚银,卢金祥..鄂西水月寺地区Landsat8-OLI遥感蚀变信息与地球化学奇异性异常信息融合应用[J].物探与化探,2024,48(5):1302-1312,11.基金项目
中国地质调查局项目(DD20242250、DD20230138、DD20221814) （DD20242250、DD20230138、DD20221814）
湖北省综合性地质区划(鄂西片)项目(KCDZ2022-07) （鄂西片）
湖北省成矿区划与矿产前期勘查(鄂西片)项目(KCDZ2023-20) （鄂西片）
