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Posts tagged Toussidé

Toussidé Volcano in Tibesti Mountains, Chad

21.0N 16.4E

January 2nd, 2011 Category: Deserts, Mountains, Volcanoes

Chad - December 26th, 2010

The pale sands of the Sahara Desert surrounded the Tibesti Mountains in Chad and a small part of southern Libya. The mountains are volcanic, composed of a group of inactive volcanoes.

One volcano, however, is potentially active: Toussidé, with an altitude of 3,265 m. The westernmost volcano of the mountains, it can be observed almost in the center of the dark brown shape that has tentacle-shaped lava flows extending down the western flank.

Volcanoes and Lava Flows of the Tibesti Mountains, Chad and Libya – November 26th, 2010

21.3N 16.3E

November 26th, 2010 Category: Image of the day, Mountains, Volcanoes

Chad and Libya - November 9th, 2010

The Tibesti Mountains appear as a large brown area occupying most of this image of northern Chad and part of southern Libya. They are a group of dormant volcanoes forming a mountain range in the central Sahara desert, visible as the tan area to the north and west.

In the center of the mountains, in Chad, is Tarso Voon, a stratovolcano with a summit caldera that is 14 x 18 km large. Ignimbrite deposits surround the caldera to distances of 15–35 km.

The dark brown area to the west is Toussidé (also known as Tarso Toussidé), a potentially active volcano that rises to an elevation of 3265 m above sea level. The octopus-like brown shape is due to lava flows extending down the western flank.

Finally, to the north of Toussidé is Tarso Toh, a volcanic field that fills valleys and plains over an area of 80 km in east-west direction and 20–30 km in north-south direction. It contains 150 scoria cones and two maars.

Tentacle-Shaped Lava Flows of Toussidé Volcano, Chad – April 28th, 2010

21.0N 16.4E

April 28th, 2010 Category: Lakes, Volcanoes

Chad - March 5th, 2010

Chad - March 5th, 2010

Toussidé (also known as Tarso Toussidé) is a potentially active volcano and the westernmost volcano of the Tibesti Mountains. The peak rises 3,265 m (10,712 ft) above sea level, and the volcano’s base measures approximately 55 miles (90 km) in diameter.

The peak is almost centered within the black shape that has tentacle-shaped lava flows extending down the western flank. The light brownish area surrounding the peak shows a distinctive radial drainage pattern that is quite common for stratovolcanoes as the terrain falls away from the main peak.

The depression southeast of the volcano measures approximately 5 miles (8 km) in diameter and 3300 feet (1000 m) in depth. Its white color is caused by an accumulation of carbonate salts, creating this soda lake of Tibesti.

With the exception of small vents that emit gasses and a few hot springs that continue to deposit minerals at the surface of the crater floor, little volcanic activity presently occurs in this region.