Landsat TM image is one of the primary sources of remote sensing geological information at present. It provides a lot of information for mapping and recognizing unaltered and altered rocks and vegetation and other things in the region of visible and near infrared and short-wave infrared and thermal infrared bands. Because its thermal infrared band(TM7) has a low spatial resolution

generally

it isn't used. This paper uses Correspondence Analysis (CA) to process the TM image at the Seerteng Mountain

Inner Mongolia Autonomous Region

and acquired good results and shows the useful information that CA provides.