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View of Lake Toba in Sumatra, Indonesia which is the largest volcanic lake in the world

A volcanogenic lake is a lake formed as a result of volcanic activity. [1] They are generally a body of water inside an inactive volcanic crater ( crater lakes) but can also be large volumes of molten lava within an active volcanic crater ( lava lakes) and waterbodies constrained by lava flows, pyroclastic flows or lahars in valley systems. [2] The term volcanic lake is also used to describe volcanogenic lakes, although it is more commonly assigned to those inside volcanic craters. [3] [4] [1] [2]

Volcanic crater lakes

Crater Lake in Oregon, USA

Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Examples:

Soda Lakes in Nevada, USA

Lakes in maars fill small craters where an eruption deposited debris around a vent. Examples:

Lava lakes

Lava lake at Mount Nyiragongo in the Democratic Republic of the Congo

These are some examples of rare lava lakes where molten lava in a volcano maintains relative equilibrium, neither rising to overflowing nor sinking to drain away.

Lava-dammed lakes

Garibaldi Lake in British Columbia, Canada, is impounded by lava flows comprising The Barrier

References

  1. ^ a b Manville, V.; Hodgson, K. A.; Nairn, I. A. (2007). "A review of break-out floods from volcanogenic lakes in New Zealand". New Zealand Journal of Geology and Geophysics. 50 (2). The Royal Society of New Zealand: 131. Bibcode: 2007NZJGG..50..131M. doi: 10.1080/00288300709509826. ISSN  0028-8306. S2CID  129792354.
  2. ^ a b Manville, V. (2015). "Volcano-Hydrologic Hazards from Volcanic Lakes". Volcanic Lakes. Advances in Volcanology. Springer Science+Business Media. p. 22. ISBN  978-3-642-36832-5.
  3. ^ Robert K. Lane, Lake at the Encyclopædia Britannica
  4. ^ Pasternack, Gregory B. "Volcanic Lakes". Pasternack Lab. University of California, Davis. Retrieved 2019-11-20.

Further reading

External links