内蒙古扎嘎乌苏地区遥感矿化蚀变信息提取研究

The Study on Alteration Information Extraction of Zhagawusu Area in Inner Mongolia

为充分发挥遥感技术在内蒙古扎嘎乌苏地区矿化蚀变信息提取方面的作用,以Landsat 8 OLI数据为主要数据源,采用特征向量主成分分析,结合异常切割和异常滤波的方法,提取研究区遥感矿化蚀变信息。基于GIS平台,将已知的地质矿产信息与提取的矿化蚀变信息进行叠置分析,显示提取的蚀变信息与研究区地质信息吻合较好。研究证实,该方法对本地区蚀变矿物信息的提取可行,对该区未来找矿勘查具重要指导意义。

In order to give full play to the role of remote sensing technology in the extraction of mineralized alteration information in the zhagawusu region of Inner Mongolia.This paper takes Landsat 8 OLI data as the main data source,and uses feature vector principal component analysis combined with density segmentation and anomaly filtering to extract mineralization and alteration information in the study area.With the help of the GIS platform,the known geological and mineral information and the extracted alteration information are analyzed.The results show that the alteration information extracted by the above method is in good agreement with the geological information in the study area.The study confirms that the method is feasible for the extraction of alteration mineral information in this region and has important guiding significance for future mineral prospecting in this area.