Hydrogeochemical and isotopic composition of a low-temperature geothermal source in northwest Turkey: case study of Kirkgecit geothermal area |
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| Authors: | Deniz Sanliyuksel Alper Baba |
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| Institution: | (1) Geology Engineering Department, Engineering and Architecture Faculty, Canakkale Onsekiz Mart University, Terzioglu Campus, 17020 Canakkale, Turkey;(2) Department of Civil Engineering, Engineering Faculty, Izmir Institute of Technology, Gulbahce, Urla, 35430 Izmir, Turkey; |
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| Abstract: | Chemical and isotopic compositions of three hot springs and one cold spring in the Kirkgecit geothermal field, located 15 km
southwest of Canakkale-Biga in the northwest of Turkey, were monitored five times during 2005 and 2007. The physico-chemical
characteristics of the hot springs are average discharge 3–3.5 L/s, surface temperature 45–52°C, pH 8.9–9.3, and electrical
conductivity (EC) 620–698 μS/cm. The cold spring has a temperature of 12–13°C, pH 7.5–8.3, and EC 653–675 μS/cm. The hot waters
are Na-SO4 type, whereas the cold water is Ca-HCO3 type. Chemical geothermometers suggest that the reservoir temperature is around 80–100°C. The isotopic data (oxygen-18, deuterium
and tritium) indicate that the thermal waters are formed by local recharge and deep circulation of meteoric waters. |
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