GIS and Remote Sensing Application in geological mapping and 3D terrain modeling: a case study in Eghei Uplift, Libya

Almost all digital or topographic mapping and most mapping projects require the digital maps generated using the integrated geographic information systems (GIS) and remote sensing techniques with geospatial databases. The use of remote sensing (RS) and radar images to produce geological maps is seen as making it possible to reveal those elements of geological features from images which should be reflected in the geo-spatial databases and digital maps. This study presents a way to incorporate digital data handling with both GIS and remote sensing techniques combined with geospatial databases and thus contribute to filling the gap between traditional geological mapping and modern geological studies performed with GIS and remote sensing techniques. The main part of this research relates to the development of a new and detailed geological mapping system that has been constructed to present geological and topographic information in a geo-databases frame in an easy-to-use way. The methodology and legend of the mapping system and geospatial databases which are suggested in this study have been successfully applied to various types of landscapes in the study area. The study area in the southeast of Libya has been mapped in the development of the geological mapping system.