Extraction of Mineral Remote Sensing Information on the Alteration Characteristics of Eshan Granite Body in Central Yunnan Province

At present, with the continuous progress of remote sensing technology, it has become a major field of technical means and application methods, especially in the field of geology, used in geological prospecting, etc., can be more convenient and efficient identification of mineral alteration remote sensing anomalies, for prospecting exploration work to provide reference significance. In this paper, the Eshan granite body in Yuxi City, Yunnan Province is taken as the research object, using ASTER data, based on Principal Component Analysis (PCA), spatial convolution and texture analysis, the remote sensing information extraction model is optimally constructed under the complex geological background, so as to carry out the extraction of remote sensing information of minerals in the erosion feature of Eshan granite body in central Yunnan Province.