Active tectonics of western Kosova: Insights from geomorphic 1 and structural analyses

Abstract

Kosovo is located in a key position in the central-west part of the Balkans providing an opportunity to understand the far-field effects of distributed intracontinental deformation caused by the Aegean extension in the south and Adriatic compression in the west. It is also situated along the NE-SW trending Shkodër-Pejë transverse zone, where the Dinarides and Albanides-Hellenides orogenic belts are juxtaposed. While the instrumental seismicity of the country indicates the activity of this fault zone and many others, the active faults in the country were not discussed in detail in the current literature. In this study, we analysed both the geomorphic and structural features of major mountain front faults in western Kosovo (i.e., Pejë, Istog, Krojmië and Prizen faults) to reveal the relative assessment of their activities and kinematic characters. Geomorphic and morphometric analyses of all the studied four different mountain fronts indicated high activity and tectonic uplift rates of over 0.5 mm/a. On the other hand, according to the collected kinematic data from the observed fault planes, all the studied faults are of normal character representing a dominance of NW-SE-directed extension in western Kosovo, which is most probably caused by the rollback of subducting slab in the Hellenic trench.