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Irruputuncu

Irruputuncu
Iru Phutunqu, Iruputuncu, Irruputunco
Irruputuncu is located in Bolivia
Irruputuncu
Irruputuncu
Location in Bolivia, on the border with Chile
Highest point
Elevation 5,163 m (16,939 ft) 
Coordinates 20°43′55″S 68°33′08″W / 20.73194°S 68.55222°W / -20.73194; -68.55222Coordinates: 20°43′55″S 68°33′08″W / 20.73194°S 68.55222°W / -20.73194; -68.55222
Geography
Location Bolivia, Potosí Department, Nor Lípez Province
Chile, Tarapacá Region
Parent range Andes, Cordillera Occidental
Geology
Age of rock Pleistocene-Holocene
Mountain type Stratovolcano
Last eruption 1995

Irruputuncu is a volcano in the commune of Pica, Tamarugal Province, Tarapacá Region, Chile, as well as San Pedro de Quemes Municipality, Nor Lípez Province, Potosí Department, Bolivia. The mountain's summit is 5,163 m (16,939 ft) high and has two summit craters—the southernmost 200 m (660 ft)-wide one has active fumaroles. The volcano also features lava flows, block-and-ash flows and several lava domes. The volcano is part of the Andean Central Volcanic Zone (CVZ).

The volcano has been active during the and Holocene, with major eruptions occurring 258.2 ± 48.8 ka ago, between 55.9 ka and 140 ka ago and 1570 ± 900 BP (380 ± 900 AD), which were accompanied by the formation of ignimbrites. Historical volcanic activity is less clear; an eruption in 1989 is considered unconfirmed. Plumes linked to phreatomagmatic eruptive activity were observed on 26 November 1995 and 1 September 2003. Seismic activity is also observed on Irruputuncu, and ongoing fumarolic activity releasing 21–50 t/d (0.24–0.57 long ton/ks) of sulfur dioxide has left sulfur deposits in the active crater.


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Wikipedia

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