Hydrogeological Survey of Karaagac Geothermal Field (Usak, Turkey)

Abstract

Hydrogeological Survey of Karaagac Geothermal Field (Usak, Turkey) 1Aysegul Cetin, 2Fikri Ozturk, 3Kemal Akpinar ILLER BANK CO.INC. Turkey 1aysegulcetin32@gmail.com 2ugurezgi@yahoo.com 3akpinar_kemal@hotmail.com Abstract In this study, mainly geothermal hydrogeological studies were conducted in an area of Karaagac (Usak) and vicinity. Within the framework of the study, geology, hydrogeology, water chemistry, geothermal alteration and isotope hydrology studies have been carried out and geological, hydrogeological cross sections and maps were prepared. In exploration area, the basement rock is schist Paleozoic aged, respectively others which are Permien aged marble units. Miocene units consist of mainly conglomerate, sandstone, claystone and volcanics which are agglomera, andesite, tuffs. In the hydrogeological studies, hydrogeological units in the studied area were identified. The main permeable rock (reservoir) is fractured schists. There are 4 drilling well. Thermal water temperatures are 48-51 0C, depths are 182 m and 550 m. Chemical properties of hot water based on ion characteristics of hot waters vary between Na+K more than Ca more than Mg and Ca more than Mg more than Na+K, anions of HCO3 more than SO4 more than Cl. As a result of these studies a hydrothermal conceptual model is proposed.