Abstract
The paper introduces the Herľany geyser as a unique geotouristic locality that would be appreciated as a member of any geosite network. Based on description of general geology and hydrogeology of the area, the text explains the origin of the cold-water geyser. Applying the method of geosites assessment, detailed geotouristic value of the geyser is specified for the first time.
Highlights
Nowadays, efforts are widely discussed how to preserve, protect and promote various types of human and natural sites and monuments
The Herľany geyser is described with its specific water regime and considerable geotourism potential of Herľany village in the Eastern Slovakia
The Herľany geyser differs from the “classic” geysers in low temperature of water because it is situated in the area of extinct volcanic activity
Summary
Efforts are widely discussed how to preserve, protect and promote various types of human and natural sites and monuments. The geyser itself is situated in the old spa of the Herľany-Rankovce (Fig. 1), 28 km northeast from the city of Košice (Fig. 2), at the foot of the Slanské Mts. The Herľany geyser differs from the “classic” geysers in low temperature of water because it is situated in the area of extinct volcanic activity. In 1873, strong eruption from 275 meters depth destroyed the derrick. Water column was over 100 meters high and eruption has lasted for 10 days. Drilling was completed at about 400 meters depth (Fig. 3). The geyser spontaneously shoots water column from 10 to 15 meters high every 32 to 36 hours (Figs 4, 5). According to Dobra and Pinka (2004), there were more than 40,000 eruptions during the Herľany geyser life (Figs 4, 5)
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