Medical Hydrology and Balneology: Environmental Aspects

Hydrogeochemical, medical and bioclimatic
evaluation of kozakli (nevsehir) geothermal
waters in central Anatolia, Turkey
Gürdal H (1) , Asfin M (2) , Erdogan N (2) , Dogan G (2) , Dag G (3) ,
Oruç Ö (2) , Davraz A (2) , Karakas Z (3)
(1) Istanbul University, Istanbul Medical Faculty, Department of Medical Ecology and
Hydroclimatology, Turkey
(2) Aksaray University, Department of Geological Engineering, Turkey
(3) Aksaray University, Department of Environmental Engineering, Turkey
hgurdal@istanbul.edu.tr
Materials and Methods
In this study, aimed to investigate the hydrogeological and physico chemical
characteristics of thermal water sources, as well as to examine the properties of
Nevsehir Kozaklı cure environment, air quality and definition of this region as the
possibilities for the human health protection and treatment of diseases. These
sources are close the Cappadocia, the world's most important geological structures
are located in.
Materials and Methods
Wet and dry periods, water samples were taken to determine seasonal variation.
chemical and isotopic analyzes were conducted. Isotopic dating used to estimate the
age and origins of waters. The results obtained are evaluated in terms of the water
chemistry and graphics isotope. Air pollution and meteorological records have been
examined to analysis of the air quality of spa environment. Therapeutic indications,
was based on water and climate characteristics.
Results
Hydrogeochemical evaluation of Kozaklı (Nevşehir) geothermal waters; The
basement units such as quartzite and marbles in Paleozoic age having cracks contain
groundwaters in Kozaklı geothermal areas. Sandstone, sandy limestone and
conglomerate levels are permeable gypsum, marly and clayey levels are impermeable
in Cenozoic age units. Kozaklı geothermal waters (KGW) emerge along the
faults. Water type of KGW is Na-Ca-Cl-SO4. Aquifer temperatures of the immatured
waters from hydrogeochemical viewpoint are calculated as 105°C for KGW
by different geothermometers. All the waters are of meteoric origin to δ18O, δ2H
and 3H results. KGW has lower recharge area altitude, and has long water-rock
interaction and reletively higher circulation time. Sources of CO2 of the waters are
fresh carbonates, marine carbonate and metamorphic origin to the results of 13C;
Balnea
2012, núm. 6, 419-420
419
ISBN: 978-84-669-1887-0
978-84-669-3482-4