minor volcanic forms

geysers, hot springs etc

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Solfatara ­ small volcanic areas without cones, produced by gases (mainly
sulphurous) espically to the surface, for example around the bay of naples in
Geysers ­ these occour when water, heated by volcanic activity, explodes
onto the surface, for example Old Faithful, Yellowstone National Park, USA
Hot Springs/Boiling mud ­ Sometimes the water, heated below, does not
explode onto the surface. If the water mixes with surface deposits, boiling
mud is formed. Such features are very common in Iceland. There are hot
springs at Bath in the west of England.
Fumeroles - An opening in or near a volcano, through which hot sulfurous
gases emerge


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