The Yingzuishan gold deposit in Gansu Province is characterized by different wall rock alterations and

complicated mineralizations. According to the difference in spectral characteristics between mineralized alteration

rocks and wall rocks, the authors made correlation analysis and factor analysis between the in-situ measured

spectral data and multivariate data of rocks and minerals, set up remote sensing models for mixed alteration, and

selected the best variable or variable unit. The abnormal information of mixed alteration was also extracted.

Practice has proved that such a method is effective in extracting mineralization information.