The Domuyo Volcano is a

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

Argentine Argentines (mistakenly translated Argentineans in the past; in Spanish (masculine) or (feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, s ...

province A province is almost always an administrative division within a country or sovereign state, state. The term derives from the ancient Roman ''Roman province, provincia'', which was the major territorial and administrative unit of the Roman Empire ...

of Neuquén. With a height of , it is the highest mountain in Patagonia and is sometimes called the "Roof of Patagonia" (''"El Techo de la Patagonia"'' in Spanish). The

volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are ...

has a large wide

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...

. At least 14

dacite Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite. ...

lava dome In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on ...

s are found within the caldera, with another five outside. Its slopes western contain many fumaroles,

hot spring A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circ ...

s and

geyser A geyser (, ) is a spring characterized by an intermittent discharge of water ejected turbulently and accompanied by steam. As a fairly rare phenomenon, the formation of geysers is due to particular hydrogeological conditions that exist only in ...

s. It names derives from the

Mapuche The Mapuche ( (Mapuche & Spanish: )) are a group of indigenous inhabitants of south-central Chile and southwestern Argentina, including parts of Patagonia. The collective term refers to a wide-ranging ethnicity composed of various groups who sha ...

meaning "To tremble and grumble", probably due to the geothermal activity of the volcano. The volcano is accessible by the National Route 40 from

Chos Malal Chos Malal is the capital city of the Chos Malal Department in Neuquén Province, Argentina. History Chos Malal was founded on 4 August 1887 by Colonel José Olascoaga. It developed as a control point for policing the movement of cattle with ...

, connecting with provincial route 43, passing by

Andacollo Andacollo () is a city and commune in the Elqui Province, Coquimbo Region, Chile. History Andacollo is a copper and gold mining city located in the mountains of the Small North (El Norte Chico) in Chile. It was founded in 1891. Several legend ...

References

Sources

* (in Spanish; also includes volcanoes of Argentina, Bolivia, and Peru) * Subduction volcanoes Volcanoes of Neuquén Province Stratovolcanoes of Argentina Calderas of Argentina Pleistocene stratovolcanoes {{Neuquén-geo-stub

See also

References

Sources