Fig. 1. 1∶200 000 geological map of the study area

Fig. 2. Color composition of different variables from OLI and MSI images

Fig. 3. Crosta-based selected principal component from OLI or MSI images

Fig. 4. Color composition of different variables from ASTER images

Fig. 5. Results of different classification methods for OLI and MSI images

Fig. 6. Distribution of lithological anomaly belt

Fig. 7. 1∶250 000 geological map of the study area