Inferred Section of the Main (low Temperature) Geothermal Systems in the Republic of Macedonia

Abstract

The geothermal zone in Macedonia is associated with geothermal manifestations (mainly hot springs and wells with temperature from 20-790C) at more than 50 localities. It is believed that only low temperature fields exist. Lowtemperature hydrogeothermal systems in Macedonia can be divided into two groups depending on the mode of heat transfer, i.e. convective and conductive. This paper deals only with convective geothermal systems that develop in the surroundings of karst of Mesozoic, Paleozoic and Precambrian age. Almost all convective hydrogeothermal systems are related to an ancient subduction zone of Jurassic age along the Rodopian mass and Dinarides (known as the Vardar tectonic unit) and exhibit forced convection. The most important convective hydrogeothermal systems are in the Skopje valley, Kotchany valley, Strumica valley, Gevgelia valley and in Kezovica, Toplik-Topli dol, Toplec, Strnovec-Proevci, Sabota voda, Povisica-Kratovo.