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Mudpot
From Wikipedia, the free encyclopedia
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A mudpot or paint pot is a sort of hot spring or fumarole consisting of a pool of usually bubbling mud.
Mudpots form in high-temperature geothermal areas where water is in short supply. The little water that is available rises to the surface at a spot where the soil is rich in volcanic ash, clay and other fine particulates. The thickness of the mud usually changes along with seasonal changes in the water table.
The mud takes the form of a viscous, often bubbling, slurry. As the boiling mud is often squirted over the brims of the mudpot, a sort of mini-volcano of mud starts to build up, sometimes reaching heights of 3-5 feet. Although mudpots are often called "mud volcanoes", true mud volcanoes are very different in nature.
The mud is generally of white to greyish color, but is sometimes stained with reddish or pink spots from iron compounds. When the slurry is particularly colorful, the feature is then called a "paint pot".
The geothermal areas of Yellowstone National Park contain several notable examples of both mudpots and paint pots, as do some areas of Iceland and New Zealand.
