... of the modern Nile is dominated by input from the Ethiopian Highlands, transported by the Blue Nile and Atbara rivers. Detrital zircons in the Nile trunk are predominantly derived from Phanerozoic cover rocks. Most detritus from the upstream White Nile is trapped in the Sudd marshes and contributes little...

... Nile drains predominantly crystalline basement rocks, whereas the Blue Nile and Atbara flow off the Ethiopian Highlands, which consist of Tertiary volcanic rocks. A high-resolution profile of 87 Sr/ 86 Sr and Ti/Al ratios from a well-dated core in the Nile Delta shows a close correspondence with known...

... assemblages dominated by calcic amphibole, epidote, garnet, staurolite, aluminosilicates, and opaques (ilmenite and titanomagnetite) derived from amphibolite- and granulite-grade metamorphic rocks of the Central African Province. The Blue Nile and Atbara Rivers carry assemblages dominated by calcic amphibole...

... into the Tertiary. The Tertiary Hudi Chert, found in scattered outcrops in the region of Atbara, was considered to overlie the Nubian Sandstone Formation. We suggest that the Hudi Chert is partly age equivalent to the Tertiary upper Nubian Sandstone at Jebel Mudaha. The Nubian Sandstone Formation...

... described elsewhere (Gass x9551; Ruxton i956; Gabert, Ruxton & Venzlaff i96o ). Part of the geology along the Nile north of Atbara has been described (Kabesh i96o), and Hume (I934) gave details of metamorphic and igneous rocks particularly at the Nile cataracts. The only geological map available showing all...

... were emplaced after the metasedimentary sequences, as they are near the Nile river north of Atbara, then of course they would only be expected to show late, superimposed structures. It is entirely possible that part of the gneisses of the basement areas are the original floor to the sedimentary...

... ). The Blue Nile and Atbara–Tekeze rivers, which are the main sediment suppliers to the main Nile in recent times ( Garzanti et al . 2006 ; Padoan et al . 2011 ), drain the juvenile Neoproterozoic Arabian–Nubian Shield, Mesozoic sediments and Tertiary volcanic rocks of the Ethiopian highlands...

...-sourced tributary, the Atbara, and 30% from the White Nile. Shukri (1949) and Woodward et al . (2007) measure the current relative suspended sediment load contributions as more extreme, with the Blue Nile and Atbara contributing over 95% of the 120 million tonnes of the load that reach Aswan...

...) (Sudan) 15.4 × 10 6 ( Omer, 2002 ) Boreholes 1.22 × 10 12 1.6 × 10 6 ( Omer, 2002 ) Transboundary Atbara groundwater zone (NSA, weathered basement) (Sudan) 50 × 10 8 ( Omer, 2002 ) Baseflow 2990 × 10 9 2.3 × 10 6 ( Omer, 2002 ) Transboundary Sudd groundwater zone...

... deposits on the Egyptian shelf ( Stanley et al. , 1979 ). Furthermore, heavy mineral suites in modern coastal sands along the delta margin are characterized by Ethiopian components ( El Fishawi and Molnar, 1985 ). The Blue Nile and Atbara rivers drain the Ethiopian Plateau and the Mereb-Gash river drains...

... to pass through the town of Kassala. In most years, flow along the Gash River terminates in the region immediately north of Kassala ( Fig. 2A ), where natural and human-induced water losses become excessive. Rare major floods may pass beyond this region to reach and join with the Atbara River, itself...

.... Changes in the flux of water and sediment to the desert Nile are controlled largely by climate in the Blue Nile–Atbara and White Nile basins ( Woodward et al., 2007 ). The fluvial and archaeological records of northern Sudan have allowed us to explore the interactions between Holocene climate change...

.... A. 2020 , Displacement monitoring of upper Atbara dam based on time series InSAR . Survey Review , 52 ( 375 ) 485 – 496 . Wu, X. P., & Xu, G. M. 1998 , Improvement of Occam's inversion for MT data . Acta Geophysica Sinica , 41 , 547 – 554 . Xiang, Y...

... The Nile owes its existence to two main tributaries, the Blue Nile and the White Nile ( Fig. 1 ). The Blue Nile furnishes 71% of the sediment load and 68% of the peak flow. The White Nile furnishes only 3% of the sediment load (the balance being furnished by the Atbara) but provides the Nile with 83...

.... , 1967 , The first, first principles of geology : American Journal of Science , v. v. 265 pp. 449 ’ 461 . Hurst , H.E. , 1950 , The Nile basin , Volume VIII . The hydrology of the Sobat and White Nile and the topography of the Blue Nile and Atbara : Cairo , Government Press, Physical...

... basalts of the Ethiopian Highlands, two of the main tributaries of the Nile, the Blue Nile and Atbara River, are expected to have Nd isotope signatures enriched in the radiogenic Nd isotope ( 143 Nd). New Nd isotope data for the River Nile and its tributaries confirm that expectation ( Fig. 1 and Table...

..., Ghana, West Africa . Applied Water Science v. 7 (2) pp. 609 – 623 . Edmunds , W.M. , Darling , W.G. and Kinniburgh , D.G. (1987) Estimation of aquifer recharge using geochemical techniques: final report of the Lower Atbara River Basin Project. Fleckenstein , J. H...

... the year, but during the flood seasons the riverine input into the southeastern Mediterranean comprised approximately 25% sand, 45% silt, and 30% clay. Most of the sedimentary load was derived from the Ethiopian plateau and transported by the Blue Nile and the Atbara rivers ( Hassan, 1981 ). Most...