Geothermal gradient variation in the Büyük Menderes Graben: implications for geothermal potential of the graben, Western Anatolia, Turkey

Authors : Adrian WIGGINS, , İbrahim ÇEMEN

Pages : 123-142

Doi:10.19111/bulletinofmre.1293039

View : 85 | Download : 116

Publication Date : 2023-08-25

Article Type : Research Paper

Abstract :The Büyük Menderes Graben insert ignore into journalissuearticles values(BMG); is an E-W oriented active extensional geothermal basin within the Menderes Massif, a metamorphic core complex, in Western Anatolia, Turkey. 1500 insert ignore into journalissuearticles values(megawatts-energy); MWe of installed geothermal capacity for power production exist as of December 2019 in Western Anatolia, mostly generated in the BMG. While the BMG is a vastly producing geothermal resource, it is predicted that it has higher production potential. However, other studies do not include field scale 3D geologic models or geothermal gradient maps. This study aims to first quantitatively test the geothermal gradients in the Aydın-İncirliova-Osmanbükü Geothermal Field insert ignore into journalissuearticles values(IGF);, then map the information. This study also aims to compare the IGF with a neighboring geothermal field. To complete this study, information from stratigraphic columns, bottom hole temperatures, and continuous temperature logs from 13 geothermal wells is utilized with Leapfrog Geothermal to create 3D models of the geology and subsurface temperature distribution. Then, isothermal contour maps of the field are created. The geologic modeling suggests that synextensional deposition has occurred within the graben. The temperature modeling suggests both that thermal breakthrough may have occurred in the field, and that the IGF has a higher geothermal gradient than the nearby Germencik Geothermal Field
Keywords : Extensional Terrane, Tectonics, 3D Model, Temperature Gradient Map, Leapfrog