-Manganese Ore Prospecting Using Remote Sensing And GIS Techniques, In Abu Shaar El Qibli Area, Eastern Desert, Egypt

Abstract

The present study aims to investigate the use of spectral signature of multispectral Landsat-8 data and Sentinel-2 in geological investigation of mineral resources, besides petrographic and chemical analysis as well as field verification to investigate the occurrence of manganese deposits in Abu Shaar El Qibli Area, Eastern Desert, Egypt Several methods used for spectral enhancement of multispectral images are used on both Landsat 8 (Operational Land Imager; OLI) image and Sentinel-2 in order to detect manganese layers in the study area. The imagery subjected to several data enhancement techniques before interpretations that included; principle component analysis, band ratio and band algebra. ENVI 5.1 and ArcGIS 10.2 packages were used for digital/mathematical processing steps and to apply the resulted models in the study area. The spectral signature curve behavior for four samples of manganese deposits had measured and examined carefully and its relationship with the surface reflectance (SR) values of Landsat 8 data and Sentinel-2 data, these relationship considered the factor for determination of the sensitive response bands for manganese interaction. Spectral signature is