Reevaluation of Geothermal Potential of Çubukludağ Graben (Western Anatolia, Turkey)

Abstract

This study aims to determine the geometrical, structural features, and geothermal potential  of the Çubukludağ Graben. Within the study’s scope, fault-fracture and layer planes were measured at 110 stop points and plotted to the rose diagram and Wulff net. Thus, geological  sequence, fault orientations, types and geometries, intersection areas, and lateral and vertical  displacements of the faults, tensional-compressional areas, main compression directions, and  rotation regions were determined. The geological and morphotectonic maps of the region  were prepared. The formation mechanisms of the hanging rhyolite and dacite caps, along  with the large-sized tears in the middle and west of the graben, were also explained using  those maps. The main tectonic structures and the faulting characteristics of the Tuzla, Deliömer, Gümüldür and Değirmendere Fault Zones that boundary these structures, and the  relations between the geological setting and the geothermal system are detailed. In the light  of the new field data obtained, a new geological model of the graben has been constructed, and the geothermal potential has been reevaluated.