Darfur Dome

Darfur Dome or Darfur Volcanic Province is an area about 100x400 km in area in Western Sudan, the result of a volcanic plume[1][2] which created its best-known and central feature, Deriba Crater. It also produced the surrounding Marra Mountains (Jebel Marra)[3][4] and Tagabo Hills, formed around 16 and 10 Ma., and the Meidob Hills which arose around 6.8 Ma.[5] The plume is linked to stress resolution along the Central African Fault Zone.

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  Deriba Caldera
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  Jebel Marra Deriba Lakes
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  Central Africa showing CASZ.

The Darfur Volcanic Province from ISS.

Notes

1. "The Darfur Dome, western Sudan: the product of a subcontinental mantle plume", G. Franz, International Journal of Earth Sciences, Volume 83, Number 3 / October, 1994
2. Franz, G (1999), "Plume related alkaline magmatism in central Africa—the Meidob Hills (W Sudan)", Chemical Geology, 157 (1–2): 27–47, doi:10.1016/S0009-2541(98)00195-8
3. Google Maps
4. "Jebel Marra, a dormant volcano in Darfur Province, Western Sudan", J. R. Vail, Bulletin of Volcanology, Volume 36, Number 1 / March, 1972
5. G. Franz