Callaqui

Mountain in Chile

37°55′0″S 71°27′0″W / 37.91667°S 71.45000°W / -37.91667; -71.45000GeographyLocationChileParent rangeAndesGeologyMountain typeFissure stratovolcanoLast eruptionOctober 1980

Callaqui is a stratovolcano located in the Bío Bío Region of Chile. It is a large ice-capped, basaltic andesite volcano which is elongated in the northeast-southwest direction, due to its construction along an 11 km (7 mi) long fissure. Numerous cinder cones and lava flows have erupted from vents along this linear fissure. Most of the activity at Callaqui has been fumarolic. Minor eruptions were reported 1751, 1864, and 1937, and the latest eruption was a small phreatic eruption in 1980.

Together with Hekla in Iceland, Callaqui is one of the few volcanoes with a morphology between a crater row and stratovolcano (built from mixed lava and tephra eruptions).^[1]

The volcano is the centerpiece of Ralco National Reserve.

References

^ Moreno Roa, Hugo; Lahsen Azar, Alfredo (1986), "Ejemplos del Volcanismo Fisural en los Andes del Sur (38°L.S.)", Revista de la Asociación Geológica Argentina, 42 (1–2): 1–8

Bibliography

González-Ferrán, Oscar (1995). Volcanes de Chile. Santiago, Chile: Instituto Geográfico Militar. pp. 640 pp. ISBN 956-202-054-1. (in Spanish; also includes volcanoes of Argentina, Bolivia, and Peru)
"Callaqui". Global Volcanism Program. Smithsonian Institution.
Biggar, John (2005). The Andes: A Guide for Climbers (3rd ed.). Andes Publishing (Scotland). pp. 304 pp. ISBN 0-9536087-2-7.