Ollagüe
Encyclopedia
Ollagüe is a massive andesite
stratovolcano
in the Andes
on the border between Bolivia
and Chile
. It is located southeast of the village that shares its name
.
On the lower west flank of Ollagüe, debris avalanche hummocks surround La Poruñita scoria cone and separate Salar de Ollagüe from Salar de Carcote
.
The volcano displays fumarolic activity, particularly to the south of its summit area.
On the northwest side of the mountain a disused switchback road, whose highest point reaches over 5,650m leads to sulfur mines on the upper portion of Ollagüe. It is one of the highest (if not the highest) roads in the world. It has been descended by mountain bike .
Andesite
Andesite is an extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. In a general sense, it is the intermediate type between basalt and dacite. The mineral assemblage is typically dominated by plagioclase plus pyroxene and/or hornblende. Magnetite,...
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...
in the Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...
on the border between Bolivia
Bolivia
Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...
and 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...
. It is located southeast of the village that shares its name
Ollagüe, Chile
Ollagüe is a Chilean frontier village and commune in El Loa Province, Antofagasta Region. The village is located 215 km northeast of the city of Calama with a station on the FCAB railine....
.
On the lower west flank of Ollagüe, debris avalanche hummocks surround La Poruñita scoria cone and separate Salar de Ollagüe from Salar de Carcote
Salar de Carcote
Salar de Carcote, also known as Salar de San Martín, is a salt flat in northern Chile. The salar is located southwest of Ollagüe. It covers an area of around 108 km² and its surface elevation is 3,690 m.The landscape of the area is dominated by the volcanoes Ollagüe to the east and Aucanquilcha to...
.
The volcano displays fumarolic activity, particularly to the south of its summit area.
On the northwest side of the mountain a disused switchback road, whose highest point reaches over 5,650m leads to sulfur mines on the upper portion of Ollagüe. It is one of the highest (if not the highest) roads in the world. It has been descended by mountain bike .
See also
- AucanquilchaAucanquilchaAucanquilcha is a massive stratovolcano located in Antofagasta Region of northern Chile, just west of the border with Bolivia. It comprises a number of overlapping cones along a 10 km long ridge that forms the summit. There is weak, episodic fumarolic activity and voluminous sulfur...
- OlcaOlcaOlca is a stratovolcano on the border of Chile and Bolivia. It lies in the middle of a 15 km long ridge composed of several stratovolcanos. Cerro Minchincha lies to the west and Paruma to the east. It is also close to the pre-Holocene Cerro Paruma. It is andesitic and dacitic in composition,...
- List of volcanoes in Bolivia
- List of volcanoes in Chile