重庆巫山地区遥感地质解译及蚀变信息提取  

Information extraction of remote-sensing geological interpretation and alteration in Wushan and Chongqing

作　　者：罗真富[1,2] 谢洪斌[1,2] 吴国代[1,2] 任世聪[1,2] 曾琳[1,2] 

机构地区：[1]外生成矿与矿山环境重庆市重点实验室(重庆地质矿产研究院),重庆400042 [2]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042

出　　处：《河南理工大学学报（自然科学版）》2014年第4期447-452,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：中国地质调查局全国矿产资源潜力评价项目(1212011121019)

摘　　要：为了提高重庆巫山地区的地质研究程度和对其矿产资源潜力进行评价,以Landsat 7ETM+遥感数据为基础信息源,根据工作区遥感影像特征和1∶20万地质图,采用目视解译的方法,对工作区地层、线性构造和环形构造进行遥感解译,并采用比值法、主成分分析法、比值-主成分分析法提取铁染和羟基蚀变异常信息,对其结果进行了对比分析和探讨.在对区域成矿地质条件和典型矿床综合研究的基础上,根据地层、构造和蚀变异常的空间分布特征,圈定成矿预测区,为矿产资源勘查和潜力评价提供重要线索和依据.In ordere to raise the degree of geological research and evaluate mineral resources in Wushan and Chongqi,this paper extracted the stratums,the linear and circular structure information of a study area by manual visual interpretation according to the characteristics of Landsat 7 ETM ＋ remote,sensing image and a 1 ∶200 000 geologic map.At the same time,different methods such as the ratio method,principal components analysis,ratio-principal component analysis are employed to analyze and compare the extracting efficiency of iron and hydroxide radical anomalies information.Based on the integrative study of regional metallogenic geological conditions and typical deposit,a metallogenic prognosis region was delineated according to the spatial distribution characteristics of stratum,structure,and anomaly information,which could provide important clues and a basis for mineral exploration and the potential assessment of mineral resources.

关 键 词：遥感技术 地质解译 蚀变异常信息 成矿预测 

分 类 号：P627[天文地球—地质矿产勘探] TP79[天文地球—地质学]