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Jebel Marra volcano

Volcanic field 3042 m / 9,980 ft
Sudan, 12.95°N / 24.27°E
Current status: dormant (1 out of 5)
Jebel Marra volcano books
Typical eruption style: unspecified
Jebel Marra volcano eruptions: 2000 BC (?)  No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

The most prominent feature of the vast Jebel Marra volcanic field, located in the Darfur province of western Sudan, is the youthful Deriba caldera. The 5-km-wide, steep-walled caldera, located at the southern end of the volcanic field, was formed about 3500 years ago at the time of the eruption of voluminous airfall pumice and pyroclastic flows that traveled more than 30 km from the volcano. The Jebel Marra volcanic field covers a broad area of the Marra Mountains and contains early basaltic lava flows overlain by thick sequences of pyroclastic-flow deposits. The northern part of the volcanic field displays trachytic lava plugs and spines forming residual inselbergs and young basaltic scoria cones and lava flows. Ash eruptions at Deriba caldera may have continued into early historical time (Burton and Wickers, 1966), and fumarolic activity has been observed on the flanks of a small pyroclastic cone within the caldera.
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Smithsonian / GVP volcano information


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