ABSTRACT
Landsat-TM satellite images are well known as useful tools for geological mapping especially in arid and semiarid areas. The band combination of 7,4,1 is regarded as a standard providing good visualization of geological units (Kaufmann, 1986). The present contribution concerns a geomathematical application of TM data from the Red Sea Hills of Sudan, to select bands for better discrimination of island arc and ophiolite related metamorphic rocks of the area.
