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Ulla en la cima del Volcán Ojos del Salado (6893 m)
Monday, Mar 05, 2012
En la cima del mundo... Nuestros miembros de equipo Ulla Lohmann está feliz de haber llegado a volcán más alto del mundo con casi 7000 metros. ... [Leer más]
 

Ojos del Salado volcano

estratovolcán 6887 m / 22,595 ft
Northern Chile / Argentina, -27.12°S / -68.55°W
Current status: normal or dormant (1 out of 5) | Reports
Ojos del Salado volcano books
Last update: 5 Mar 2012
Typical eruption style: explosive
Erupciones del volcán Ojos del Salado: 1993 (?), 700 AD ± 300Ojos del Salado volcano in February 2012 (Photo: Ulla Lohmann)No hay terremotos recientes
Fecha / HoraRevista / ProfundidadDistanciaUbicación
Nevados Ojos del Salado is the world's highest active volcano. It is located on the Chile/Argentina border, about 20 km south of the road that crosses Argentina-CHile border at Paso de San Francisco.
The mountain has very dry conditions with snow only remaining on the peak during winter. The volcano contains two summit peaks of the same height.
A large explosive eruption took pleace about 1000-1500 years ago and produced pyroclastic flows.
Ojos del Salado is still active and has fumarolic activity at present, but there are no confirmed historical eruptions of Ojos del Salado. A report of minor gas-and-ash emission in 1993 could not be confirmed. The volcano currently shows fumarolic activity.

Background:

from Smithsonian / GVP volcano information:
The summit complex, which is elongated in a NE-SW direction and overlies a largely buried caldera, contains numerous craters, pyroclastic cones and andesitic-to-rhyolitic lava domes and has been the source of Holocene lava flows. A major rhyodacitic explosive eruption took place about 1000-1500 years ago, producing pumiceous pyroclastic flows. The most recent eruptive activity of Ojos del Salado appears to have originated along a NNE-trending rift along the summit complex. It involved formation of a thick, viscous lava flow and at least a dozen small cones, lava domes, and explosion craters. No confirmed historical eruptions of Ojos del Salado have been recorded, but the volcano has displayed persistent fumarolic activity, and there was an unconfirmed report of minor gas-and-ash emission in 1993.

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