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Tibesti Mountain Volcanoes, Chad – October 31st, 2008

October 31st, 2008 Category: Image of the day, Volcanoes

Emi Koussi volcano, Chad

Emi Koussi volcano, Chad

Close-up of craters 1

Close-up of craters 1

Here we have a sharp image of the Tibesti Mountains, a group of dormant volcanoes forming a mountain range in the central Sahara desert in the Bourkou-Ennedi-Tibesti Region of northern Chad.

The mountains are the largest and highest range in the Sahara.

The highest peak is Emi Koussi, 3,415 m, visible in the third close-up.

Other summits include Kegueur Terbi (3,376 m), Tarso Taro (3,325 m), in the first close-up, and Soborom (3,100 m).

Close-up of craters 2

Close-up of craters 2

The active volcano Pic Toussidé (3,265 m), with tentacle-like lava flows running down its sides, is best observed in the second close-up.

While the high peaks themselves are all constituted of volcanic material, the mountains stand on broad uplifted area possibly caused by a mantle plume.

The range has a substantially wetter climate than the arid surrounding desert; annual rainfall is estimated at five inches (12 cm) in some of the highest areas of the mountains.

Close-up of craters 3

Close-up of craters 3

source Wikipedia

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