Nevados de Chillán
Encyclopedia
Nevados de Chillán is a group of stratovolcano
es located in the Andes
of the Bío-Bío Region
, Chile
, and is one of the most active volcanoes in the region. It consists of three overlapping peaks, 3212 m (10,538 ft) Cerro Blanco (Volcán Nevado) at the northwest and 3089 m (10,135 ft) Volcán Viejo (Volcán Chillán) at the southeast, with Volcán Nuevo in the middle. Volcán Viejo was the main active vent during the 17th-19th centuries, and the new Volcán Nuevo lava dome
complex formed between 1906 and 1945, eventually growing to exceed Viejo in height by the mid 1980s.
Image below: areal view of the Nevados de Chillán volcanic group. FLTR: Volcán Nevado, Volcán Nuevo, Volcán Chillán. The Volcán Arrau dome complex (1973–1986) can be seen as a sharp cone-shape in front of the Volcán Nevado.
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...
es located in the Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...
of the Bío-Bío Region
Bío-Bío Region
The VIII Biobío Region , one of the fifteen first-order administrative divisions in Chile, comprises four provinces: Arauco, Biobio, Concepción, and Ñuble.The capital of the Region is Concepción...
, Chile
Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...
, and is one of the most active volcanoes in the region. It consists of three overlapping peaks, 3212 m (10,538 ft) Cerro Blanco (Volcán Nevado) at the northwest and 3089 m (10,135 ft) Volcán Viejo (Volcán Chillán) at the southeast, with Volcán Nuevo in the middle. Volcán Viejo was the main active vent during the 17th-19th centuries, and the new Volcán Nuevo lava dome
Lava dome
|250px|thumb|right|Image of the [[rhyolitic]] lava dome of [[Chaitén Volcano]] during its 2008–2009 eruption.In volcanology, a lava dome is a roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano...
complex formed between 1906 and 1945, eventually growing to exceed Viejo in height by the mid 1980s.
Image below: areal view of the Nevados de Chillán volcanic group. FLTR: Volcán Nevado, Volcán Nuevo, Volcán Chillán. The Volcán Arrau dome complex (1973–1986) can be seen as a sharp cone-shape in front of the Volcán Nevado.
See also
- Geothermal power in ChileGeothermal power in ChileChile represents one of the largest undeveloped geothermal areas of the world. Despite Chile's good economic performance in the late 1980s and 1990s, geothermal energy did not develop, and Chile has been surpassed by other Latin American countries such as El Salvador and Costa Rica in terms of...
- List of volcanoes in Chile
- Smithsonian Institution, Global Volcanism Program: http://www.volcano.si.edu/world/volcano.cfm?vnum=1507-07=