This edited volume is based on the best papers accepted for presentation during the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018. The book is of interest to all researchers in the fields of Structural Geology, Stratigraphy, Ore Deposits, Regional Tectonics and Tectonic Modelling. This volume offers an overview of multidisciplinary studies on the broader Africa-Eurasia geology. Main topics include: 1. Basement Geology2. Fluid-rock interaction, hydrothermalism and ore deposits3. Reservoir geology, structure and stratigraphy4. Mediterranean Tectonics5. The Alpine-Himalayan convergence zone6. Tectonic Modelling