Hot Springs and Geysers
A hot spring is a discharge of hot (>35–40°C) water from a vent at the Earth’s surface.
A geyser is a hot spring characterized by intermittent, turbulent discharges of boiling water and steam.
Asublacustrine hot spring is a hot spring that discharges from the floor of a lake.
A hot spring is characterized by discharge of hot water from a vent. There is, however, no universally accepted definition of “hot” and the temperature for distinguishing a “warm spring” from a “hot spring” remains contentious (Pentecost et al., 2003). In general usage, a hot spring is one with vent water temperature between about 40°C and boiling point (Renaut and Jones, 2000). It must be remembered, however, that boiling temperature changes with altitude; thus, boiling in Yellowstone National Park occurs at ∼92°C, whereas in New Zealand geothermal areas, which lie closer to sea level, it is at ∼100°C.
The term “geyser” is derived from “Geysir,” located in southwest Iceland. First...
KeywordsPermeability SiO2 Hydroxyl Siliceous Steam
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