Use of ERS-1 and Landsat TM images for geological and mineral exploration of Sol Hamid area
23 Joseph Proz Teto, Noha El Gedida, Cairo,
1564 Alf Maskan, Noha el gedida, Cairo,
(2) Cairo Univ., 23 Joseph proz Teto, Nozha El Gedida, Cairo, 1564 Alf Maskan, Cairo, Egypt
Use of ERS-1 and Landsat TM images for geological and mineral exploration of Sol Hamid area , South Eastern Desert , Egypt Talaat M. Ramadan and Hoda Onsi National Authority for Remote Sensing and Space Sciences, Egypt ABSTRACT:- This research focuses on the merging of ERS-1 SAR and Landsat TM images for geological mapping and mineral exploration of Sol Hamid area in the South Eastern Desert of Egypt. This area is underlain by the Neoproterozoic rocks of the Sol Hamid suture. They are partly covered by Miocene sediments and recent sand sheets and dunes. The Neoproterozoic rocks include ophiolitic ultramafic to mafic rocks, metavolcano-sedimentary rocks, metavolcanics, gobbro-diorite rocks, granodiorites , biotite granites and alkali granites. Mineral deposits associated with different rock units include magnesite , chromite , iron are deposits , manganese and barite deposits. ERS-1 SAR data enable to obtain an image of Sol Hamid area that reveals fluvial features beneath a surface cover of desert sand. These same features are not observable in Landsart TM images of similar resolution. Principal component analysis technique is used on merged ERS-1 SAR and Landsart TM images for enhancing subsurface structures such as foliation and foaultss that control minerelization of several deposits in the study area. This study in a good example to demonstrate the utility of the used remote sensing technique for finding ore deposits in arid region.