Geyser

A geyser is a type of hot spring that erupts periodically, ejecting a column of hot water and steam into the air. The name geyser comes from Geysir, the name of an erupting spring at Haukadalur, Iceland; that name, in turn, comes from the verb gj?sa, "to gush".

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The formation of geysers requires a favourable hydrogeology which exists in only a few places on Earth, and so they are fairly rare phenomena. About 1000 exist worldwide, with about half of these in Yellowstone National Park, USA (Glennon, J.A. 2005). Geyser eruptive activity may change or cease due to ongoing mineral deposition within the geyser plumbing, exchange of functions with nearby hot springs, earthquake influences, and human intervention (Bryan, T.S. 1995).

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Erupting fountains of liquefied nitrogen have been observed on Neptune's moon Triton. These phenomena are also often referred to as geysers. On Triton, the geysers appear to be driven by solar heating instead of geothermal energy. The nitrogen, liquefied by a kind of greenhouse effect, may erupt to heights of 8 km.

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Hot spring: A hot spring or a hydrothermal spring is a place where warm or hot groundwater issues from the ground on a regular basis for at least a predictable part of the year, and is significantly above the ambient ground temperature (which is usually around 55–57 °F or 13–14 °C in the eas...

Water: :This article focuses on water as it is experienced in everyday life. See water (molecule) for information on the chemical and physical properties of pure water (H2O, hydrogen oxide)....

Steam: In physical chemistry and in engineering, steam refers to vaporized water. It is a pure, invisible gas (for mist see below), which at standard atmospheric pressure has a temperature of around 100 degrees Celsius, and occupies about sixteen hundred times the volume of liquid water (steam can of cour...

Geyser related Images and Photos (experimental)

Geyser Basin at Twilight	Strokkur Geyser Iceland Polar Regions	A Geyser in Haukadalur Erupting Iceland	Castle Geyser Erupting Yellowstone National Park Wyoming USA
Geyser at Geysir Thermal Area Near Reykjavik Iceland Polar Regions	Sunrise Silhouette of Elk at Castle Geyser Yellowstone National Park Wyoming USA