国土资源遥感2013，Vol.25Issue(3)：109-117,9.DOI:10.6046/gtzyyg.2013.03.19
内蒙古东乌旗遥感构造和蚀变信息提取与找矿预测
Extraction of linear structure and alteration information based on remote sensing image and ore-prospecting prognosis for Dongwu Banner, Inner Mongolia
摘要
Abstract
Using ETM + remote sensing data as the basic information sources,the authors carried out remote-sensing geological prospecting in Pb-Zn-Ag polymetallic ore zones of Dongwu Banner,Inner Mongolia.Remote sensing image was processed by geometric correction,atmospheric correction and the noise removal technology.Image filtering was conducted so as to enhance tectonic information and explain linear structure.The fractal dimension values were calculated by the method of fractal geometry and the box-counting dimension.As a result,the linear structures showed excellent statistical self-similarity and fractal characteristics in the study area.Principal component analysis and threshold segmentation were used to enhance the spectrum and space information and extract the iron-stained and hydroxy alteration information.Through comprehensively analyzing the linear structure,remote sensing alteration information,rock mass distribution characteristics,regional geochemical information and known deposits,seven metallogenic prospective areas at three levels were delineated.关键词
ETM+遥感数据/线性构造/分维值/蚀变信息提取/找矿预测Key words
ETM + remote sensing data/ linear structure/fractal dimension value/extraction of alteration information/ prediction of mineral prospecting分类
计算机与自动化引用本文复制引用
钱建平,张渊,赵小星,赵少杰,李承礼..内蒙古东乌旗遥感构造和蚀变信息提取与找矿预测[J].国土资源遥感,2013,25(3):109-117,9.基金项目
广西矿冶与环境科学实验中心、广西隐伏金属矿产勘查重点实验室、中国科学院地球化学研究所矿床地球化学国家重点实验室开放基金项目(编号:200913)和中国冶金地质勘查工程总局第一地质勘查院项目(中冶勘一地任[2006] 32号)共同资助. （编号:200913）
