Department of Geology;
Islamic Azad University;
Science and Research Branch;
Tehran;
Iran;
Department of Geology;
Islamic Azad University;
North Tehran Branch;
Tehran;
Iran;
Mining Engineering Department;
Islamic Azad University;
Lahijan Branch;
Lahijan;
Iran;
Kehdolan; Area; False; Color; Composite; Band; Ratios; Color; Ratio; Composite; Principal; Component; Analysis; Crosta; Technique; Supervised; Spectral; Angle; Mapping; ASTER; Data; ETM+; Data; Alteration;