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Country: | Chile | |
| Subregion Name: | Central Chile | ||
| Volcano Number: | 1507-05= | ||
| Volcano Type: | Stratovolcanoes | ||
| Volcano Status: | Historical | ||
| Last Known Eruption: | 1933 | ||
| Summit Elevation: | 3953 m | 12,969 feet | |
| Latitude: | 35.58°S | 35°35'0"S | |
| Longitude: | 70.75°W | 70°45'0"W | |
| Volcán Descabezado Grande is a late-Pleistocene to Holocene andesitic-to-rhyodacitic stratovolcano with a 1.4-km-wide ice-filled summit crater. Along with 3788-m-high Cerro Azul, only 7 km to the south, 3953-m-high Descabezado Grande lies at the center of a 20 x 30 km volcanic field. A lateral crater that formed on the upper NNE flank in 1932, shortly after the end of the major 1932 eruption from nearby Quizapu volcano on the north flank of Cerro Azul, was the site of the only historical eruption of Descabezado Grande. The Holocene Alto de las Mulas fissure on the lower NW flank of Descabezado Grande produced young rhyodacitic lava flows. Numerous small late-Pleistocene to Holocene volcanic centers are located north of the volcano. The northernmost of these, Lengua de Vulcano (or Mondaca) produced a very youthful rhyodacitic lava flow that dammed the Río Lentué. | |||
