遥感技术在云南建水地区1∶5万区域地质调查中的应用

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英文篇名：Application of remote sensing to the geological survey at 1∶50 000 scale in Jianshui, Yunnan 作者：周慧敏 ; 郝伟涛 英文作者：Zhou Huimin;Hao Weitao;No.2 Institute of Geological & Mineral Resources Survey,Henan Bureau of Geo-Exploration & Mineral Development;Institute of Surveying,Mapping and Geo-Information,Henan Bureau of Geo-Exploration & Mineral Development; 关键词：遥感 ; 区域地质调查 ; 地层岩性 ; 线性构造 ; 蚀变异常信息 ; 云南建水 英文关键词：remote sensing;;regional geological survey;;formation lithology;;lineament;;alteration anomaly information;;Jianshui,Yunnan 中文刊名：JSDZ 英文刊名：Journal of Geology 机构：河南省地质矿产勘查开发局第二地质矿产调查院;河南省地质矿产勘查开发局测绘地理信息院; 出版日期：2019-03-28 出版单位：地质学刊 年：2019 期：v.43;No.170 基金：中国地质调查局项目“云南1∶5万龙朋等六幅区域地质调查”(1212011220400) 语种：中文; 页：JSDZ201901018 页数：11 CN：01 ISSN：32-1796/P 分类号：115-125

摘要

通过龙朋等6幅1∶5万区域地质调查,对云南建水地区进行遥感地质解译和蚀变信息提取。在充分收集数据资料、了解掌握该区地质背景的基础上,利用Landsat ETM+和2.5 m高分辨率ALOS遥感数据,进行各种图像增强处理。结合地质资料,建立解译标志,对研究区的岩性地层、断裂、线性构造进行解译。分析典型蚀变矿物的波谱特征,利用ETM+遥感数据提取与矿化紧密相关的蚀变异常信息,将提取的线性构造和蚀变异常信息与研究区地质、矿产资料结合,对遥感异常区进行初步评价,明确找矿方向,为研究区后续找矿工作提供参考。
        Based on the projects of six regional geological surveys at a scale of 1∶50 000 in Longpeng, Quxi etc., this paper carries out remote sensing interpretation and alteration information extraction in the working area. After data collection and understanding the geological background of this area, the Landsat ETM+ and 2.5 m high resolution ALOS remote sensing data were used for various image enhancement processing. Meanwhile, the interpretation signs are set up to interpret the lithologic strata, fractures and lineaments of the study area. When analyzing the spectral characteristics of typical altered minerals, ETM+ remote sensing data were used to extract abnormal information related to mineralization. The lineament and alteration anomaly information extracted are applied in the comprehensive analysis of regional geological and mineral data, which helps preliminarily evaluate the remote sensing abnormal areas, and clarify their prospecting significance. This research can help enrich the geological research of the study area and guide prospecting in the future.

引文

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