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'Toussidé' (also known as 'Tarso Toussidé') rises 3265 metres above sea level, the westernmost volcano of the Tibesti Mountains. The peak is almost centered within the black shape that has tentacle-shaped lava flows extending down the western flank. The volcano’s base measures approximately 55 miles (90 km) in diameter. 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. The white base 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.

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References

References

★ National Aeronautics and Space Administration

★ Global Volcanism Program

★ High-resolution NASA photograph