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Hydrogeochemical and isotopic study of thermal and mineralized waters from the Nevsehir (Kozakli) area, Central Turkey

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Title Hydrogeochemical and isotopic study of thermal and mineralized waters from the Nevsehir (Kozakli) area, Central Turkey
 
Creator PASVANOGLU, S
CHANDRASEKHARAM, D
 
Subject WESTERN ANATOLIA
GEOTHERMAL-FIELD
BORATE DEPOSITS
QUATERNARY
Turkey geothermal province
Kozakli
Anatolian geothermal provinces
travertine
hydrogeochemistty
 
Description In the Kozakli geothermal province, thermal waters are manifested along a valley 1.5 km long and 200 m in width. Thermal waters utilised by the resort and some other hotels are mostly discharged from bore wells. The issuing temperatures of the thermal waters vary from 40-50 degrees C in thermal springs and 45-96 degrees C in bores and open wells. The geochemical and isotopic signatures of the thermal water suggest mixing of thermal waters with formation waters and cold near-surface groundwaters before emerging to the surface, and hence geochemical indicators fail to indicate the near true reservoir temperatures. However, the oxygen and hydrogen isotopic signatures strongly suggest a high temperature reservoir (>220 degrees C) in the crystalline basement rocks. Long circulation of meteoric waters within the basement rocks is indicated by low tritium values in the thermal waters. Major involvement of Miocene Marls in modifying the chemical signatures of the thermal waters is inferred from the trace element concentrations. (C) 2011 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2012-06-26T07:34:38Z
2012-06-26T07:34:38Z
2011
 
Type Article
 
Identifier JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,202(3-4)241-250
0377-0273
http://dx.doi.org/10.1016/j.jvolgeores.2011.03.003
http://dspace.library.iitb.ac.in/jspui/handle/100/14148
 
Language English