地质与资源2025，Vol.34Issue(3)：323-329,7.DOI:10.13686/j.cnki.dzyzy.2025.03.006
基于Crosta方法的遥感矿化蚀变信息提取与找矿远景区圈定
Extraction of remote sensing mineralization alteration information and delineation of prospecting potential areas based on Crosta technique:A case study of Yichun area in Xiaoxinganling Mountains
摘要
Abstract
Based on the Landsat8 OLI remote sensing data,with ASTER and ALOS data as the interpretation base maps,this study interprets the strata,and linear and ring structures in Yichun area,Xiaoxinganling Mountains,by visual interpretation.Guided by the theory of diagnostic spectra for altered wall rocks,the hydroxyl alteration and ferric contamination anomaly information are extracted with band ratio and principal component analysis(PCA).The alterations in principal components are graded by density slicing.Through comprehensive analysis of remote sensing interpreted faults,ring structures and alteration-mineralization information,potential mineralization areas are delineated from the perspective of remote sensing to provide references for field prospecting.关键词
Landsat8数据/Crosta方法/遥感/蚀变信息/成矿预测/黑龙江省Key words
Landsat8 data/Crosta technique/remote sensing/alteration information/metallogenic prediction/Heilongjiang Province分类
天文与地球科学引用本文复制引用
曹会,张洪文,邢立新,李雨柯,温秋园,衣国强..基于Crosta方法的遥感矿化蚀变信息提取与找矿远景区圈定[J].地质与资源,2025,34(3):323-329,7.基金项目
中国地质调查局自然资源综合调查指挥中心科技创新基金"高植被密度区不稳定斜坡激光雷达数据最优分割尺度分类识别"(KC20220014) （KC20220014）
中国地质调查局项目"热点地区应用地质环境分析评估"(DD20230593),"黑龙江1∶5万三兴山、白桦林场、友谊经营所、鸡爪河林场(M52E021011、M52E022011、M52E023011、M52E024010)幅区域地质矿产调查"(12120113072600). （DD20230593）
