Hydrogeophysical modelling of Hisarcik (Kütahya) geothermal field, western Turkey

Abstract

Western Anatolia hosts many low‐to‐moderate and high‐temperature geothermal sources in which active faults play a dominant role to control the recharge and the discharge of geothermal fluid. In this study, we used the two‐dimensional geoelectric structure of Kütahya Hisarcık geothermal field, and created a conceptual hydrogeophysical model that includes faults, real topographical variations and geological units. The temperature distribution and fluid flow pattern are also investigated. The depth extension of Hisarcık Fault, electrical basement and low resistivity anomalies related to the presence of geothermal fluid are determined by using resistivity studies in the area. Numerical simulations suggest that Hisarcık fault functioning as a fluid conduit primarily enables hot fluid to be transported from depth to the surface. It is shown that the locations of predicted outflow vents coincide with those of hot springs in the area.

Seismic Events in the Upper Miocene – Pliocene Sedimentary Succession in the Gulf of İzmi̇r (Western Anatolia): Implications for Hydrocarbon Prospectivity

“…1a). Extension in the region is characterized by crustal thinning (Ates et al, 2012), seismic activity (Taymaz et al, 1991;Reilinger et al, 1997), and high heat flows associated with volcanism (Ilkişik, 1995;Yılmaz et al, 2001;Tokçaer et al, 2005;Bilim et al, 2016) and geothermal activity (Tarcan et al, 2005;Altan and Ocakoğlu, 2016;Üner et al, 2019). The ongoing extension has created numerous east-west trending (and less common northsouth trending) Neogene grabens and horst blocks in western Anatolia (Fig.…”