Toward Better Mapping the Ophiolite Rocks of Northern Part of Oman Mountains using LANDSAT ETM+ and ASTER Images
要旨Remote sensing, geographic information system new technologies are playing a vital role in precise mapping with cost effectively especially in complex lithology (mélange) and remotely areas. However, the Ophiolite and gabbros contribute the majority of Oman Mountain. In this paper, the correlate stretch enhancement The VNIR, SWIR and TIR bands of Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) were applied to integrate the work done with LANDSAT ETM+ images, the spectral angle mapper algorithm (SAM) and the matched filter (MF) for rock unites classification shows good discriminations of the complex interference igneous and metamorphic rocks based on spectral signature and mineral composition of each rock. Field mapping and image processing investigations show new minor outcrops of metamorphic rocks and napps of ophiolite along and on the extension of Wadi Dibba NE of the study area could help in better mapping and tectonic explanation of Oman mountain deformation. It is proposed here that the area near by Wadi Dibba fault zone NE trend still active and effected by Zagros belt and Arabian plate anticlockwise rotation.