Galán
For other uses, see gentleman.
| Galán | |
|---|---|
  Galán Location in Argentina | |
| Highest point | |
| Elevation | 5,912 m (19,396 ft) |
| Coordinates | 25°55′S 66°52′W / 25.917°S 66.867°WCoordinates: 25°55′S 66°52′W / 25.917°S 66.867°W |
| Geography | |
| Location | Catamarca Province, Argentina |
| Parent range | Andes |
| Geology | |
| Age of rock | 2.2 million years |
| Mountain type | Caldera |
| 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.
See also
References
- Cerro Galan Caldera Oregon State University
- 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; Clive Oppenheimer (2004). "The size and frequency of the largest explosive eruptions on Earth". Bulletin of Volcanology (PDF) 66 (8): 735–748. Bibcode:2004BVol...66..735M. doi:10.1007/s00445-004-0355-9.
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