Carte topographique Deriba Caldera
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À propos de cette carte
Nom : Carte topographique Deriba Caldera, altitude, relief.
Lieu : Deriba Caldera, Zalingei, Central Darfur, Sudan (12.93777 24.23583 12.93787 24.23593)
Altitude moyenne : 2 683 m
Altitude minimum : 2 304 m
Altitude maximum : 3 008 m
Deriba is an oval, 4.8 by 6.4 kilometres (3 mi × 4 mi) wide and 500–1,000 metres (1,600–3,300 ft) deep caldera, with a volcanic cone occupying the southwestern part of the caldera floor. At least five overlapping vents form the volcanic cone. The rim of the caldera reaches a maximum elevation of 3,024 metres (9,921 ft) in the southwest, and is steep almost vertical. The caldera is cut into volcanic ash, lapilli, lavas, obsidian and tuffs, and the floor is strewn with pumice blocks. A gap lies in the eastern caldera wall.