Published: Jan 1, 2007
Thermal waters Hydrogeochemistry Geothermometry Farsala basin Greece
G. Stamatis
K. Parpodis
N. Lambrakis
E. Zagana

Farsala Basin presents a remarkable geothermal interest. Areas exhibiting geothermal potential are directly related to faulted zones, represented mainly by cross-faulted systems of E-W, NW-SE and NNE-SSW direction. Thermal waters occur in the areas of Ampelia and Krini in boreholes of 420 m depth. Their temperature ranges between 20,5° and 39,1° C. Thermal waters originate from meteoric waters, which have been infiltrated and heated in great depths, moved towards the surface through faults and hosted in the aquifers of coarse - grained formations find in the area. Their chemical composition is controlled by their contact with the volcanic parts (pillow lavas) of the ophiolithic series. They show alkaline character and low salts concentration. Waters of Ampelia region, which belong to Na-HCO^ type, exhibit temperatures from 27,9° to 39,1° C and low salt concentrations (405- 607 mg/l TDS). On the contrary, waters of Krini area present lower temperatures (20,5° -26,2° C) and higher salt concentrations (734-1850 mg/l TDS). These waters belong to Na-Mg-Ca-HCO^and Na-S04 -Cl-HCO} types. According to chemical geothermometers the study area can be classified to low enthalpy geothermal field, since the estimated thermal liquids temperature in great depths varies from 50° to 70° C.

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Bornovas, I., Filippakis, N., and Bizon, J.J.G., 1969. Geological Map of Greece 1:50.000, Farsala Sheet. Publication IGME Athens.
Ferrière, J., 1982. Paléogéographies et tectonigues superposées dans les Hellénides internes: les massifs de l'Othrys et du Pelion (Grèce continentale), Thèse, Univ. des Sciences et Techniques de Lille, S.G.N. N°8, vol. I.
Fournier, R.O., 1977. Chemical geothermometers and mixing models for geothermal systems, Geothermics, 5, 41-50.
Fournier, R.O., 1979. A revised equation for the Na/K geothermometer. Geoth, Resources Council, Trans., 3, 221-224.
Fournier, R.O., and Potter, R.W., 1979. Magnesium correction to the Na-K-Ca chemical geothermometer, Geochim. Cosmochim. Acta, 43, 1543-1550.
Fytikas, M., and Kolios, N., 1979. Preliminary Heat Flow Map of Greece. In V. Germak and L. Rybach (eds), Terastrial Heat Flow in Europe, Springer, 197-205pp.
Gartzos, E., and Stamatis, G., 1996. Genesis of the thermal springs of the Sperchios graben, Greece, N. Jb. Geol. Paläont. Mh., H2. 91-115.
Giggenbach, W.F., 1988. Geothermal solute equilibria.-Derivation of Na-K-Mg-Ca geoindicators, Geochim. Cosmochim. Acta, 52, 2749-2765.
Kallergis, G., Morphis, Α., Papaspyropoulos, Ch., and Christodoulou, Th., 1970. Hydrogeological investigations in the Western Thessaly basin, Hydrological and Hydrogeological Investigations, IGME Athens, No8, 166pp.
Katsikatsos, G., Mylonakis, E., Triantaphyllis, E., Papadeas, G., Psonis, K., Tsaila-Monopoli, S., and Skourtsi-Koroneou, V., 1983. Geological Map of Greece 1:50.000, Velestino Sheet. Publication IGME Athens.
Mariolakos, E., Lekkas, S., Alexopoulos, Α., Fountoulis, I., Spyridonos, E., Badekas, I., Mariolakos, D., and Andreadakis, E., 2001a.
Τεχνητός εμπλουτισμός του υπόγειου καρστικού υδροφορέα του Φυλλήιου όρους στην περιοχή των Φαρσάλων (Θεσσαλία), Proc. of the 9th
Intern. Congr. Athens, September 2001, Bull. Geol. Greece, vol. XXXIV/5, 1843-1850.
Mariolakos, E., Lekkas, S., Papadopoulos, T., Alexopoulos, Α., Fountoulis, I., Alexopoulos, I., Spyridonos, E., Badekas, I., Mariolakos, D., and Andreadakis, E., 2001b. The subsurface tectonic structure of the Farsala basin (Thessaly) as determining factor of the Hydrogeological conditions of the region, Proc. of the 9th Intern. Congr. Athens, September 2001, Bull. Geol. Greece, vol. XXXIV/5, 1851-1858.
Mariolakos, E., Fountoulis, I., Alexopoulos, I., Spyridonos, E., Badekas, I., Mariolakos, D., and Andreadakis, E., 2000. The geometry of the aquifer in the Narthakion Mt. (Thessaly) as a result of the neotectonic deformation, Proc. of the 8th Panhellenic Congr. of EYE, 343- 350pp.
Migiros, G., 1990. The lithostratigraphic-tectonic structure of Othris (Central Greece), Bull. Geol. Soc. of Greece, XXVI, 107-120.
Papadeas, G., 1996. Geological and Geothermal exploration in the Sperchios basin (Greece), Energy resources investications, IGME Athens, No3, 80pp.
Sfetsos, K., 1988. Inventory of thermal and mineral springs of Greece, III Continental Greece, Hydrological and Hydrogeological Investigations, IGME Athens, No39, 667pp.
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