Hydrogeological, hydrochemical and isotopic survey of the Bayındır geothermal area (İzmir, Western Anatolia, Turkey)

Year 2005, Volume: 131 Issue: 131, 21 - 36, 01.12.2005

Metin Bulut Şevki Filiz

Abstract

The Bayındır geothermal
system is located to the northern margin of the Küçük Menderes Graben. The
reservoir rocks of the geothermal system are the calcschists and marbles of the
metamorphic formation of Triassic age. The system is controlled by active graben
faults. The geothermal field is a low-enthalpy one and the surface temperature
of the hot waters is 42-46 °C. According to the chemical geothermometer
applications, the temperature of the reservoir is 55-118 °C. The chemical and
isotopic data imply that the thermal waters are mixed with meteoric, shallow
cycling and cold underground water. The chemical composition of the thermal
waters are Ca>Mg>Na>K and HCO₃>SO₄>Cl and
the chemical composition of the cold waters are Ca>Mg>Na>K and HCO₃>SO₄>Cl.
The Sarıyurt Pb-Zn mineralization which is located in the collecting area is
proved to cause no natural or artificial heavy metal pollution in the waters.

Keywords

Heavy metal, hydrogeology, hydrochemistry, isotope, Bayındır

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