stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and per ...
located in the
La Araucanía Region
LA most frequently refers to Los Angeles, the second largest city in the United States.
La, LA, or L.A. may also refer to:
Arts and entertainment Music
* La (musical note), or A, the sixth note
* "L.A.", a song by Elliott Smith on ''Figur ...
of
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
, near the
Llaima
The Llaima Volcano is one of the largest and most active volcanoes in Chile. It is situated 82 km East of Temuco and 663 km South of Santiago, within the borders of Conguillío National Park.
Geography
The top of Llaima consists of tw ...
volcano. Its last certain eruptions were in the
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...
period, but its activity may extend into the
Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene togethe ...
. Its primary lavas are andesitic and basaltic flows, although it has also produced
pyroclastic flow
A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano at average speeds of bu ...
s.
Lahar
A lahar (, from jv, ꦮ꧀ꦭꦲꦂ) is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a river valley.
Lahars are extreme ...
s are also a hazard of this volcano. This stratovolcano is located in
Conguillío National Park
Conguillío National Park is located in the Andes, in the provinces of Cautín and Malleco, in the Araucanía Region of Chile also known as Region IX. Its name derives from the Mapuche word for "water with Araucaria seeds".
Among the att ...