Galán
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| Galán | |
|---|---|
| Elevation | 5,912 metres (19,396 ft) |
| Location | Argentina |
| Range | Andes |
| Coordinates | |
| Type | Caldera |
| Age of rock | 2.2 million years |
| Last eruption | Unknown |
Cerro Galán is a caldera in Catamarca Province, Argentina, considered to be the best exposed large caldera in the world. It was formed 2.2 million years ago when 1,050 km3 of material was erupted, producing ignimbrite deposits stretching up to 100 km away. The caldera was originally the site of a large lake, but resurgence of the eastern caldera floor has confined the salty Laguna Diamante to the caldera's western edge.
[edit] References
- Cordillera de los Andes (in Spanish)
- Cerro Galan - Volcanoes of the Central Andes
- Cerro Galan Caldera, Argentina, from How Volcanoes Work, by Vic Camp, Department of Geological Sciences, San Diego State University
- Ben G. Mason; David M. Pyle, and Clive Oppenheimer (2004). "The size and frequency of the largest explosive eruptions on Earth" (PDF). Bulletin of Volcanology 66 (8): 735–748. doi:.
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