Contribution to Sedimentology of the Nubian sandstone Formation in Khartoum Area

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Date
2015-06-22
Authors
Mohamed Tahir Hussein, Hussein
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uofk
Abstract
The study area was bounded by latitudes 15° 15' and 16° 00' N, and lonitudes 32° 15' and 33° 00' E. It covers about7000 square kilometers. The area is almost a plain with a few hills and ridges. The drainage system comprises the White Nile, Blue Nile and the River Nile. Seasonal .tar courses flow towards the river. The mean annual precipitation is about 160 mm. The rock sequence comprises the pre-Cambrian Basement Complex, the Nubian Sandstone Formation, the Ferruginous Crust, the Ferruginous Soil, the Tertiary Basalt and the Quaternary-Recent Deposits. The Nubian was deposited on apre-Nubian surface formed of ridges, basins and inselbergs. This configuration was most probably controlled by block faulting or rift-valley structures. Deposition of the Nubian began in the Lower Cretaceous and continued upwards, most probably to the Tertiary. The Ralaeocurrents were unidirectional, from the south east to the north-west. The provenance was located in the south east, characterised by metamorphic and granite rocks. The sediment logical parameters obtained for the Nubian in Khartoum area are of modern braided channel systems. The climate was tropical arid with alternating wet and dry seasons.
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Contribution to Sedimentology of the Nubian sandstone Formation in Khartoum Area
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