Hydrogeological model of geothermal waters in gölemezli and environs, Western Anatolia, Turkey


ÖZGÜR N., FatihAkınay F.

6th World Multidisciplinary Earth Sciences Symposium, WMESS 2020, Prague, Czech Republic, 7 - 11 September 2020, vol.609 identifier

Abstract

© 2020 Institute of Physics Publishing. All rights reserved.Study area is situated in 2 km NW part of the world famous travertine deposits of Pamukkale located in the node point of the Büyük Menderes and Gediz rift zones. Geologically, there are two rocks units for reservoirs in the area: (1) the Neogene Sazak formation forms the shallow reservoir and (2) the Paleozoic Iğdecik and Ortaköy formation forms the deep reservoir and are composed of marble, quartzite and schist alternations. In the area, in-situ measurements of temperatures, pH, Eh (mV), electrical conductivity values (μS/cm), dissolved oxygen values (mg/l) and alkalinity values (mmol/l) were realized. At the same time, 15 samples of geothermal waters and groundwaters in the study area were collected for cation and anion analyses by ICP-OES and IC. The geothermal waters of Gölemezli are of Na-Ca-(SO4)-HCO3 type waters whereas the geothermal waters of Pamukkale are classified as Ca-Mg-HCO3 type waters. In Gölemezli, thera are predominant cations of Na+K>Ca>Mg and predominat anions of SO4>HCO3>Cl respectively. The triangular diagram of Na1/1000-K1/100-√Ma indicates an immature water in Gölemezli and environs. Finally, geothermal waters of Gölemezli and environs were represented as a conceptual model due to hydrogeological, hydrogeochemical and isotope geochemical data in this study.