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With remote sensing technology and the development of geological prospecting , geological workers faced with how to use today's advanced technology, the harsh natural environment , topography under complex conditions to discover new deposits and find the task of blind orebodies . In this paper, Qinghai Province, a major scientific and technological projects of the East Kunlun Kendall can g - Yemaquan areas of mineralization and alteration based on remote sensing information extraction method and the prospect area forecasts. First, the analysis of the spectral Alteration Information Extraction theory and spectral characteristics of typical alteration minerals . Secondly, the study of hydrothermal alteration types and altered wall rock alteration types and conditions, and the relationship between mineral species , indicating metal deposits and altered rocks information have a higher correlation. Then , by analyzing the abnormal mineralization and alteration information extraction theory and research geological background , this paper ETM data in the study area were extracted tests. In this paper the application of three different methods for the alteration information extraction , namely spectral angle method , spectral matched filtering method based on principal component analysis and support vector machine (SVM). Among them, based on principal component analysis SVM model using remote sensing information extraction mineralization geological field more mature principal component analysis method to extract high value mineralized samples , to a certain extent, to ensure the accuracy of information extraction mineralization . Finally, the article compared and validated three methods and their application results , and conducted prospects in predictions. In short, the use of satellite remote sensing image information extracting alteration anomalies can get some extraction , and has a \For the low level of work , areas of poor natural conditions , the use of this method can achieve rapid exploration , delineation of prospects in purpose ; same time, the discovery of large deposits or ore district also has significance.
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