Investigations into the tectonic of Kutahya-Denizli region, lineaments and thermal structure western Anatolia, from using aeromagnetic, gravity and seismological data

Abstract

Residual aeromagnetic map of western Anatolia displays intense anomalies, especially in the NW of the region. Curie point depth (CPD) map obtained from the residual aeromagnetic anomalies is indicative of larger area of shallow Curie levels than previously defined. Two important shallow depth regions located at between Kutahya and Denizli are determined from CPD and thermal gradient (TG) map. The intense aeromagnetic anomalies are located in the west of Kutahya along the E-W direction. These anomalies are resulted from the metamorphic units of Menderes Massif. The analytic signal (AS) map produced from residual aeromagnetic data shows the E-W trending geological bodies causing magnetic anomalies which become intense in the west and south of Kutahya. It is also observed from the AS map that thermal structures or bodies are buried under the non-magnetic surface geology. The maxspot map derived from the location of the horizontal gradient of aeromagnetic anomalies can be well correlated with not only tectonic lineaments, but also the distribution of earthquake data. Bouguer anomalies of the region can also be well correlated with the graben system and thus provide supportive information about the geothermal energy potential of the study area. (c) 2007 Elsevier B.V. All rights reserved.