Hot Spring: Spring produced by the emergence of geothermally heated groundwater
A hot spring is a spring produced by the emergence of geothermally heated groundwater from the Earth's crust.
Hot springs are in many places, especially in mountains.
Definitions
There is no universally accepted definition of a hot spring. For example, one can find the phrase hot spring defined as
- any geothermal spring
- a spring with water temperatures above its surroundings
- a spring with water temperatures above 50 °C (122 °F)
- a natural spring with water temperature above body temperature – normally between 36.5 and 37.5 °C (97.7 and 99.5 °F)
- a natural spring of water greater than 21.1 °C (70 °F) (synonymous with thermal spring)
- a natural discharge of groundwater with elevated temperatures
Sources of heat
The water issuing from a hot spring is heated by geothermal energy, i.e., heat from the Earth's mantle.
Related pages
References
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