基于Landsat8 OLI数据的遥感蚀变信息提取与成矿远景区圈定——以青海乌兰哈莉哈德山地区为例  

Remote sensing alteration information extraction and metallogenic prospect area delineation based on Landsat8 OLI data:A case study of Halehad Mountain area in Wulan County,Qinghai

作　　者：吴明刚 王能伟 WU Minggang;WANG Nengwei(College of Marine Geosciences,Ocean University of China,Qingdao 266100,Shandong,China;Yantai Gold College,Yantai 265401,Shandong,China;The Sixth Institute of Geology and Mineral Resources Exploration of Shandong Province,Yantai 265401,Shandong,China)

机构地区：[1]中国海洋大学海洋地球科学学院,山东青岛266100 [2]烟台黄金职业学院,山东烟台265401 [3]山东省第六地质矿产勘查院,山东烟台265401

出　　处：《矿产与地质》2023年第1期197-202,共6页Mineral Resources and Geology

基　　金：中国地质调查局青藏专项项目(12120113032900)资助。

摘　　要：以青海乌兰哈莉哈德山地区为研究区,选取Landsat8 OLI遥感数据,在建立植被、冰雪和人工地物掩膜基础上,利用主成分分析和密度分割方法提取该地区的铁染和羟基蚀变异常信息。经分析验证,在综合蚀变异常中,发现3处矿化点,圈定6个成矿远景区,为该区下一步地质工作的开展提供有效的参考。On the basis of establishing vegetation,snow and ice and artificial mask feature,the anomaly information of iron-stained and hydroxyl alteration are extracted by principal component analysis and density segmentation method of Landsat8 OLI remote sensing data of Halehad Mountain area in Wulan County,Qinghai Province.Through analysis and verification,three mineralization spots are found in the comprehensive alteration anomaly,and six metallogenic prospective areas are delineated,and this provides an effective reference for the next geological work in this area.

关 键 词：Landsat8 掩膜 主成分分析 乌兰哈莉哈德山地区 青海 

分 类 号：P627[天文地球—地质矿产勘探]