Hydrogeochemical and isotopic composition of a low-temperature geothermal source in northwest Turkey: case study of Kirkgecit geothermal area


Sanliyuksel D., Baba A.

ENVIRONMENTAL EARTH SCIENCES, vol.62, no.3, pp.529-540, 2011 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.1007/s12665-010-0545-z
  • Journal Name: ENVIRONMENTAL EARTH SCIENCES
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.529-540
  • Keywords: Geothermal, Hydrogeochemistry, Isotope, Kirkgecit, Turkey, THERMAL WATERS, MARMARA REGION, NEOTECTONICS, EQUILIBRIA, ANATOLIA

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 45-52A degrees C, pH 8.9-9.3, and electrical conductivity (EC) 620-698 mu S/cm. The cold spring has a temperature of 12-13A degrees C, pH 7.5-8.3, and EC 653-675 mu S/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 80-100A degrees 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.