Huanquihue Group
Encyclopedia
The Huanquihue Group is a group of young basalt
ic stratovolcano
es in Argentina
near the border with Chile
, south of Lanín
volcano. The Huanquihue group is located south of Epulafquén Lake
, north of Loglog Lake and west of Reigolil-Pirihueico Fault
in Chile.
Basalt
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...
ic stratovolcano
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 in Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
near the border with 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...
, south of Lanín
Lanín
Lanín is an ice-clad, cone-shaped stratovolcano on the border of Argentina and Chile. It forms part of two national parks: Lanín in Argentina and Villarrica in Chile. It is a symbol of the Argentine province of Neuquén, being part of its flag and its anthem. Although the date of its last eruption...
volcano. The Huanquihue group is located south of Epulafquén Lake
Epulafquén Lake
Epulafquén Lake is a lake in Neuquén Province, Patagonian Argentina. This glacial lake is located in the Andean mountains in Lanín National Park. Hydrologically it forms one lake together with Huechulafquen Lake and is then considered an arm of it. It is separated from Huechulafquen Lake by a small...
, north of Loglog Lake and west of Reigolil-Pirihueico Fault
Reigolil-Pirihueico Fault
The Reigolil-Pirihueico Fault is a second-order geological fault located in the Chilean and Argentine Andes. As the name implies it runs from Pirihueico Lake to Reigolil Valley...
in Chile.