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Tarso Toussidé

Tousside, Tarso

Estratovolcán · Chad · 3299 m

A dramatic Space Shuttle image shows dark lava flows radiating from Toussidé volcano and spreading across the desert floor. Light-colored altered areas can be seen at the summit, the second highest peak of the Tibesti Range in Chad. It was constructed at the W end of the large Pleistocene caldera of Yirrigue, whose E scarp is seen right of Toussidé. The smaller 1-km-deep, 8-km-wide Trou au Natron caldera (lower right) cuts the SE rim of the caldera.
A dramatic Space Shuttle image shows dark lava flows radiating from Toussidé volcano and spreading across the desert floor. Light-colored altered areas can be seen at the summit, the second highest peak of the Tibesti Range in Chad. It was constructed at the W end of the large Pleistocene caldera of Yirrigue, whose E scarp is seen right of Toussidé. The smaller 1-km-deep, 8-km-wide Trou au Natron caldera (lower right) cuts the SE rim of the caldera. · Foto: NASA Space Shuttle image STS111-367-29, 2002 (http://eol.jsc.nasa.gov/). · Wikimedia Commons
Tipo
Estratovolcán
País
Chad
Región
Northern Africa Volcanic Regions / East Central Sahara Volcanic Province
Altitud
3299 m
Coordenadas
21.041, 16.473
Última erupción
Desconocido
Contexto tectónico
Intraplate / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Trachyte / Trachydacite
Resumen geológico

Tarso Toussidé, a broad volcanic massif at the western end of the Tibesti Range, is capped by the Toussidé stratovolcano, constructed at the western end of the 14-km-wide ignimbritic Pleistocene Yirrigue caldera. The 6,000 km2 massif was constructed over a basement of Precambrian schists on the east and Paleozoic sandstones on the west. The summit contains numerous fumaroles and very youthful lava flows (Vincent, 1992 pers. comm.). Fresh-looking trachytic and trachyandesitic lava flows cover an area of 200 km2 and extend as far as 25 km from the summit on the western side. The steep-sided, 1-km-deep, 8-km-wide Trou au Natron caldera cuts the SE rim of Yirrigue caldera and is one of the youngest features of the massif. Ehi Timi and Ehi Sosso volcanoes, and the smaller 1.5-km-wide explosion crater of Doon Kidimi, are located on the NE-to-ESE flanks of the massif.

Resumen de Wikipedia

Toussidé es un estratovolcán potencialmente activo en Chad. Toussidé se encuentra en los montes Tibesti, la gran caldera de Yirrigué y los cráteres más pequeños de Trou au Natron y Doon Kidimi están cerca de él. Tiene una altitud de 3.265 m sobre el nivel del mar. El volcán es el origen de varias coladas de lava, que han fluido hacia el oeste de Toussidé y hacia el este en la caldera de Yirrigué.

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⚠ Solo como referencia. No apto para respuesta ante emergencias.