Crater lake: Difference between revisions
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A '''crater lake''' is a lake that forms in [[volcano|volcanic]] [[caldera]]s or [[Volcanic crater|crater]]s after the volcano has been inactive for some time. The best-known crater lake, which bears the same name as the geological feature, is [[Crater Lake]] in [[Oregon]] state's [[Mount Mazama]]. Some crater lakes are acidic, however, some lakes' water remains fresh. Some also have geothermal activity, especially if the volcano is merely dormant rather than extinct. |
A '''crater lake''' is a lake that forms in [[volcano|volcanic]] [[caldera]]s or [[Volcanic crater|crater]]s after the volcano has been inactive for some time. The best-known crater lake, which bears the same name as the geological feature, is [[Crater Lake]] in [[Oregon]] state's [[Mount Mazama]]. Some crater lakes are acidic, however, some lakes' water remains fresh. Some also have geothermal activity, especially if the volcano is merely dormant rather than extinct. |
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Lakes can also fill [[impact crater|crater]]s formed by [[impact event]]s. An example is the Bosumtwi crater in Ghana, Africa. |
Lakes can also fill [[impact crater|crater]]s formed by [[impact event]]s. An example is the [[Bosumtwi crater]] in Ghana, Africa. |
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== Visual == |
== Visual == |
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* [http://www.virtuar.com/click/2005/crater_lake/ Crater Lake Virtual Tour] by [http://www.virtuar.com/click.htm San Fancisco Click] |
* [http://www.virtuar.com/click/2005/crater_lake/ Crater Lake Virtual Tour] by [http://www.virtuar.com/click.htm San Fancisco Click] |
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Revision as of 22:30, 28 January 2006
This page describes the geological feature. For the lake of the same name, see Crater Lake.
A crater lake is a lake that forms in volcanic calderas or craters after the volcano has been inactive for some time. The best-known crater lake, which bears the same name as the geological feature, is Crater Lake in Oregon state's Mount Mazama. Some crater lakes are acidic, however, some lakes' water remains fresh. Some also have geothermal activity, especially if the volcano is merely dormant rather than extinct.
Lakes can also fill craters formed by impact events. An example is the Bosumtwi crater in Ghana, Africa.