Bayuda
| Bayuda | ||
|---|---|---|
 Bayuda volcanic field |
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| location | Sudan | |
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| Coordinates | 18 ° 20 ′ N , 32 ° 45 ′ E | |
| Type | Volcanic chain made of cinder cones | |
The Bayuda Desert is a partial desert south of the Nubian Desert and north of Khartoum in Sudan , which lies in an arc of the Nile between about 18 and 19 degrees of latitude . The asphalt road between Atbara and Karima runs through the middle of the Bayuda Desert in the area of Wadi Abu Dom .
The desert gradually merges into the sparsely vegetated steppe off Khartoum in the south and is bounded in the west by the Wadi Muqaddam and on the other three sides by the Nile , which lies between the former 4th cataract, which is now flooded by the reservoir of the Merowe Dam , and the 5th cataract makes a wide arc to the north. The ground surface of the plain consists predominantly of a mixture of sand and stones ( Reg ) and is interrupted by isolated long ridges.
In the wadis , woody bushes ( Leptadenia pyrotechnica ) , low branched trees, desert dates and the bushy acacia species Acacia nubica thrive. Higher acacia species and tamarinds (Tamarindus indica) are much more dense directly on the banks of the Nile .
Bayuda volcanic field
In the north of the Bayuda Desert there is a basaltic area without vegetation , the Bayuda volcanic field with about 90 cinder cones , which are arranged in a series from west-northwest to east-southeast. About ten percent of the ash cones are dry maars , created by explosive eruptions. The highest crater, Hosh ed Dalam, is 1.3 kilometers in diameter and 500 meters deep. The most recent lava flow was dated using the radiocarbon method to an origin around the year 850 ± 50 years.
Individual evidence
- ^ Bernhard Streck : Sudan. Stone graves and living cultures on the Nile. DuMont, Cologne 1982, p. 14
- ↑ N. Lenhardt, SZ Lenhardt, AJ Bumby, M. Ibn Ouf, SA Salih: Morphological analysis of Holocene scoria cones and maar volcanoes of the alkaline Bayuda Volcanic Field in NE Africa (Sudan): new insights into the structure and evolution of a monogenetic volcanic field. 2016
- ↑ Bayuda in the Global Volcanism Program of the Smithsonian Institution (English)