The Nile: Evolution, Quaternary River Environments and Material Fluxes
13 The Nile: Evolution, Quaternary River Environments and Material Fluxes Jamie C. Woodward1, Mark G. Macklin2, Michael D. Krom3 and Martin A.J. Williams4 1School of Environment and Development, The University of Manchester, Manchester M13 9PL, UK 2Institute of Geography and Earth Sciences, University of Wales, Aberystwyth, Aberystwyth SY23 3DB, UK 3School of Earth Sciences, University of Leeds, Leeds LS2 9JT, UK 4Geographical and Environmental Studies, University of Adelaide, Adelaide, South Australia 5005, Australia 13.1 INTRODUCTION et al., 1980; Williams et al., 2000; Woodward et al., 2001; Krom et al., 2002) as well as during previous interglacial The Nile Basin contains the longest river channel system and interstadial periods (Williams et al., 2003). The true in the world (>6500 km) that drains about one tenth of the desert Nile begins in central Sudan at Khartoum (15° African continent. The evolution of the modern drainage 37′ N 32° 33′ E) on the Gezira Plain where the Blue Nile network and its fl uvial geomorphology refl ect both long- and the White Nile converge (Figure 13.1). These two term tectonic and volcanic processes and associated systems, and the tributary of the Atbara to the north, are changes in erosion and sedimentation, in addition to sea all large rivers in their own right with distinctive fl uvial level changes (Said, 1981) and major shifts in climate and landscapes and process regimes. The Nile has a total vegetation during the Quaternary Period (Williams and catchment area of around 3 million km2 (Figure 13.1 and Faure, 1980). More recently, human impacts in the form Table 13.1).
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