The Application of Landsat-8 Imagery and Airborne Gamma-Ray Spectrometric Data for Lithological Mapping of Gabal Nuqara Area, Central Eastern Desert, Egypt = تطبيق صور لاندسات 8- والبيانات الطيفية الجوية لأشعة جاما لرسم الخرائط الصخرية لمنطقة جبل نقارة، وسط الصحراء الشرقية، مصر

2020 ◽  
Vol 5 (1) ◽  
pp. 47-69
Author(s):  
Abdel Ghani , Ismail M.
Keyword(s):  
Gamma Ray ◽  
Eastern Desert ◽  
Landsat 8 ◽  
Spectrometric Data ◽  
Lithological Mapping ◽  
Central Eastern Desert ◽  
Central Eastern

scholarly journals Airborne gamma-ray spectrometric data interpretation on Wadi Queih and Wadi Safaga area, Central Eastern Desert, Egypt

2020 ◽  
Vol 9 (1) ◽  
pp. 155-167 ◽  
Author(s):  
Reda A. Y. El Qassas ◽  
M Salaheldin ◽  
S.M. Assran Assran ◽  
Th. Abdel Fattah ◽  
M.A. Rashed
Keyword(s):  
Gamma Ray ◽  
Data Interpretation ◽  
Eastern Desert ◽  
Spectrometric Data ◽  
Central Eastern Desert ◽  
Central Eastern

scholarly journals Utilization of Space-Borne Imagery for Lithologic Mapping: A Case Study From Um Had Area, Central Eastern Desert, Egypt

2014 ◽  
Vol 6 (2) ◽  
pp. 113 ◽  
Author(s):  
Nedal Qaoud
Keyword(s):  
Remote Sensing Data ◽  
Principal Component ◽  
Eastern Desert ◽  
Granitic Rocks ◽  
Gray Scale ◽  
Band Ratio ◽  
Lithological Mapping ◽  
Central Eastern Desert ◽  
Dokhan Volcanics ◽  
Central Eastern

Remote sensing data are used to discriminate between the different lithologies covering the Um Had area, Central Eastern Desert of Egypt. Image processing techniques applied to the Enhanced Thematic Mapper (ETM+) data are used for mapping and discriminating the different basement lithologies of Um Had area. Principal component analysis (PCA), minimum noise fraction (MNF) transform and band rationing techniques provide efficient data for lithological mapping. The study area is underlain by gneisses, ophiolitic melange assemblage (talc-serpentinite, metagabbro, metabasalt), granitic rocks, Dokhan volcanics, Hammamat sediments and felsites. The resulting gray-scale PC2, PC3 and PC4 images are best to clearly discriminate the Hammamat sediments, amphibolites and talc-serpentinites, respectively. The gray-scale MNF3 and MNF4 images easily discriminate the felsites and talc-serpentinites, respectively. The band ratio 5/7 and 4/5 images are able to delineate the talc-serpentinites and Hammamat sediments, respectively. Information collected from gray-scale and false color composite images led to generation of detailed lithologic map of Um Had area.

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