complex volcano
A complex volcano, also called a compound volcano or a volcanic complex, is a mixed landform consisting of related volcanic centers and their associated lava flows and pyroclastic rock. They may form due to changes in eruptive habit or ...
extending in a north–south direction along the border between
Argentina
Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
and
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...
. It consists of volcanoes of various ages with several overlapping calderas. Those include Volcán Planchón, Volcán Peteroa and Volcán Azufre.
A partial collapse of the complex about 11,500 years ago produced a major debris avalanche, which followed the course of the Teno River until reaching the Chile Central Valley.
Peteroa has a
crater lake
Crater Lake ( Klamath: ) is a volcanic crater lake in south-central Oregon in the Western United States. It is the main feature of Crater Lake National Park and is a tourist attraction for its deep blue color and water clarity. T ...
. Lagunas de Teno lies at the foot of Planchón volcano. In this area also is the Vergara International Pass.
September 6, 2010 eruption
Planchón-Peteroa Volcano erupted on September 6, followed by a stronger eruption on September 18. On September 21, the volcano erupted once again, emitting a dark gray plume of
volcanic ash
Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, produced during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to r ...
. As winds blew the ash southeast into Argentina, residents there were warned by authorities to evacuate the nearby areas before Planchón-Peteroa would erupt again.
See also
*
List of volcanoes in Argentina
This is a list of active and extinct volcanoes in Argentina.
Volcanoes
References
{{Andean volcanoes, state=collapsed
Volcanoes of Argentina,
Lists of landforms of Argentina, Volcanoes
Lists of volcanoes, Argentina
Andean Vol ...
Las Leñas
Las Leñas is a ski resort in Argentina, located in the western part of Mendoza Province.
It has reliable powder snow and climate for extreme and off-piste skiing. Construction of the ski center began January 1983, and by July 1983, it opened wit ...