Crater lake: Difference between revisions
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#REDIRECT [[Crater Lake (disambiguation)]] |
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''This page describes the geological feature. For the lake of the same name, see [[Crater Lake]].'' |
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[[Image:Crater Lake from rim-USGS.jpg|thumb|275px|Crater Lake in Oregon: view from the rim.]] |
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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. |
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[[Crater Lake]] in [[Crater Lake National Park]] is isolated from rivers and streams, and therefore has no in or out flow, and hense, no pollution or chemicals. It is fed by melting snow. The extreme depth of [[Crater Lake]] (1949 feet), causes the sunlight to refract in the clear water in such a way as to generate the deepest blue color of any other lake. |
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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. |
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== 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] |
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== See also == |
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* [[Maar]] |
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==Notable Crater Lakes== |
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**[[Crater Lake]] ([[Oregon]], USA) |
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**[[Kapoho Crater]] ([[Hawaii]], USA) |
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**[[Kelut]] ([[Indonesia]]) |
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**[[Lake Nyos]] ([[Cameroon]]) |
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**[[Mount Pinatubo]] ([[Philippines]]) |
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**[[Soufrière (volcano)|Soufrière]] ([[St. Vincent]]) |
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{{geol-stub}} |
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[[Category:Lakes]] |
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[[de:Maar]] |
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[[fr:Maar]] |
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[[nl:Maar (vulkaanmeer)]] |
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[[pl:Maar]] |
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[[sl:Kratersko jezero]] |
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[[sv:Kratersjö]] |
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Latest revision as of 01:53, 17 October 2022
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