Ollagüe in the context of "Cordillera Occidental (Central Andes)"

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⭐ Core Definition: Ollagüe

Ollagüe (Spanish pronunciation: [oˈʎaɣwe]) or Ullawi (Aymara: [uˈʎawi]) is a massive andesite stratovolcano in the Andes on the Bolivia–Chile border, within the Antofagasta Region of Chile and the Potosi Department of Bolivia. Part of the Central Volcanic Zone of the Andes, its highest summit is 5,868 metres (19,252 ft) above sea level and features a summit crater that opens to the south. The western rim of the summit crater is formed by a compound of lava domes, the youngest of which features a vigorous fumarole that is visible from afar.

Ollagüe is mostly of Pleistocene age. It started developing more than one million years ago, forming the so-called Vinta Loma and Santa Rosa series mostly of andesitic lava flows. A fault bisects the edifice and two large landslides occurred in relation to it. Later two groups of dacitic lava domes formed, Ch'aska Urqu on the southeastern slope and La Celosa on the northwestern. Another centre named La Poruñita formed at that time on the western foot of the volcano, but it is not clear whether it is part of the main Ollagüe system. Activity at the summit continued during this time, forming the El Azufre sequence.

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👉 Ollagüe in the context of Cordillera Occidental (Central Andes)

The Cordillera Occidental or Western Cordillera of Bolivia is part of the Andes (that is also part of the American Cordillera), a mountain range characterized by volcanic activity, making up the natural border with Chile and starting in the north with Juqhuri and ending in the south at the Licancabur volcano, which is on the southern limit of Bolivia with Chile. The border goes through the innominated point located at two-thirds of elevation of Licancabur's northeastern slope at the southwesternmost point of Bolivia at 22° 49' 41" south and 67° 52' 35" west. The climate of the region is cold and inadequate for animal and plant life. Its main feature is its ground, in which are large quantities of metallic minerals including gold, silver, copper, and others. The range consists of three sections:

  • The northern section, in which you can find the highest peaks in Bolivia, tallest of which is the volcano Sajama at 6,542 meters. Sajama is perennially covered in snow. It contains the volcanoes Pomerape and Parinacota (called Payachata collectively), the latter being a dormant volcano with a cone of snow similar to Mount Fuji in Japan.
  • The central section, situated between Uyuni and Coipasa. Its most prominent summit is the Ollagüe (Ullawi) volcano on the border with Chile.
  • The southern section, characterized by volcanic activity and by having sandstorms and fog, taking into account Licancabur, which is 5,920 meters high (but only two-thirds of the northeastern slope of the volcano belong to Bolivia up to 5415 meters). The lakes Laguna Colorada and Laguna Verde can be found on Licancabur, so named because of their respective colors.
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Ollagüe in the context of Bolivia–Chile border

The Bolivia–Chile border is an international border of South America. It separates Bolivia from Chile along Cordillera Occidental on the western edge of the Altiplano Plateau.

There is an ongoing dispute about the nature of Silala River and Chile's use of its waters.

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LINKED FROM (PARENTS)
← Bolivia–Chile border ← Cordillera Occidental (Central Andes)
LINKS TO (CHILDREN)
Andesite → Stratovolcano → Andes → Bolivia–Chile border → Antofagasta Region → Potosí Department → Central Volcanic Zone → Above sea level → Lava dome → Fumarole → Pleistocene → Lava flows → Fault (geology) → Landslide → Dacite → Ch'aska Urqu (Nor Lípez) →