Geological Mapping Using Remote Sensing and Magnetic Data

In this project, Thematic Mapper (TM) and Digital Elevation Model (DEM) images, as well as magnetic data, were used to study the geological features of Kuh-e-Djahan Bin in Iran. Scanned geological map which was geometrically corrected was then used with TM and DEM images to extract geological information. Several analyses have been done to the images such as colour composite, principal component analysis, ratio and supervised classification. In order to evaluate the classification process, accuracy assessment was done to the classified images. The accuracy statistics was the measuring scale of the classification. In addition, contour and drainage patterns analyses were also done to extract elevation, flow direction and flow accumulation data to provide further information. Magnetic modelling with a small degree of unsuitability (misfit) between the model and the geological data was employed in order to compensate the subsurface interpretation. In a nutshell, these few named analyses were flawlessly facilitated in interpreting lithologic and structural geological features which was the interest of this study.