基于Landsat-8 OLI数据的新疆昭苏南克拉克斯赛依矿区蚀变信息提取  

Alteration Information Extraction of Klarkssaiyi Mining Area in Southern Zhaosu,Xinjiang Based on Landsat-8 OLI Data

作　　者：刘欢 LIU Huan(Xi'an Aerial Photogrammetry and Remote Sensing Group Co.,Ltd.,Xi'an 710199,Shaanxi,China)

机构地区：[1]西安煤航遥感信息有限公司,陕西西安710199

出　　处：《工程技术研究》2024年第14期35-37,共3页Engineering and Technological Research

摘　　要：昭苏南克拉克斯赛依矿区气候条件恶劣,高寒缺氧,交通不便,积雪覆盖深厚,区内构造复杂,矿产资源丰富。充分发挥遥感技术的独特优势,对研究区未来的找矿工作有重要意义。文章将Landsat-8 OLI作为数据源,在预处理基础上,根据研究区矿产地质情况及围岩蚀变特征,采用主成分分析法进行铁染、羟基蚀变信息提取,结果表明:研究区蚀变异常信息分布特征具有一定规律,异常信息呈带状展布,与构造走向基本一致,羟基异常与铁染异常套合较好,且强度较高,结果与研究区内已知矿化点套合较好,证明蚀变信息为良好的找矿标志,对研究区找矿工作有重要的指导意义。The Klarkssaiyi mining area in southern Zhaosu has harsh climatic conditions,alpine hypoxia,inconvenient transportation,deep snow cover,complex structure and rich mineral resources.It is of great significance for the future prospecting work in the study area to give full play to the unique advantages of remote sensing technology.Taking Landsat-8 OLI as the data source,based on the preprocessing,according to the mineral geological conditions of the study area and the alteration characteristics of the surrounding rocks,the principal component analysis method is used to extract the iron staining and hydroxyl alteration information.The results show that the distribution characteristics of the alteration anomaly information in the study area have certain rules,and the anomaly information is distributed in bands,which is basically consistent with the structural trend,the hydroxyl anomaly and the iron staining anomaly are well combined with high intensity.The results are well combined with the known mineralization points in the study area,which proves that the alteration information is a good prospecting indicator and has important guiding significance for the prospecting work in the study area.

关 键 词：Landsat-8 OLI 主成分分析 蚀变信息提取 遥感解译 找矿预测 

分 类 号：P237[天文地球—摄影测量与遥感]