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Calbuco Volcano, Chile
Calbuco is one of the most active volcanoes of the southern Chilean Andes.
The isolated volcano rises to 2003 m south of Lake Llanquihue, which is visible at the upper right.
The summit ridge (center) of the volcano is the remnant of an older volcano that collapsed during the late Pleistocene and produced a 3 cu km debris avalanche that reached the lake.
Subsequent eruptions generated andesitic lava flows, breccias, and tuffs that filled the scarp and were subsequently topped by an historical lava-dome complex (right center).
Along with its neighbor Osorno, Calbuco is one of the most active volcanoes of the southern Chilean Andes.
The isolated late-Pleistocene to Holocene andesitic volcano rises to 2003 m south of Lake Llanquihue in the Chilean lake district.
Guanahuca, Guenauca, Huanauca, and Huanaque, all listed as synonyms of Calbuco (Catalog of Active Volcanoes of the World), are actually synonyms of nearby Osorno volcano (Moreno 1985, pers. comm.).
The 2003-m-high Calbuco is elongated in a SW-NE direction and is capped by a 400-500 m wide summit crater.
The complex evolution of Calbuco included edifice collapse of an intermediate edifice during the late Pleistocene that produced a 3 cu km debris avalanche that reached the lake.
One of the largest historical eruptions in southern Chile took place from Calbuco in 1893-1894 and concluded with lava dome emplacement.
Subsequent eruptions have enlarged the lava-dome complex in the summit crater.
PHOTO SOURCE: Hugo Moreno (University of Chile), courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.
NOTE: The information regarding Volcano on this page is re-published from other sources. No claims are made regarding the accuracy of Volcano information contained here. All suggestions for corrections of any errors about Volcano photos should be addressed to the copyright owner noted below the photo.
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This page was last modified 23-FEB-10
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