Abstract:Remote sensing images show that there are two types of stratigraphic layers in southwest Guizhou Province. One is of carbonate platform facies and the other is of groove basin facies. Au deposits occur in short-axis anticlines, dome structures and their associated faults. The positive circular structures and circular images interpreted by remote sensing are of great importance to Au mineral prospecting. In addition,the Au deposits also have certain relationship with the hidden fractures interpreted by remote sensing. Based on the idea mentioned above and using the fused image produced by the data sources of ETM+ and GeoEye data,the authors carried out the remote sensing interpretation and analysis of the structures,and delineated the prognostic areas for Au mineral prospecting.