Fluvial rates of deposition exceed the marine erosion over 3 mill years
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How long is the Nile
6,650km
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Annual rainfall
600mm
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where does the flow originate
Ethiopia and summer monsoon rains.
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where does the delta split
distributaries at Cairo, more than 160 km inland,
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What redistributes the sediment at the front of the delta
Wave action
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What direction do the waves usually come from
W, NW
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reworked sediment creates closed barrier bars that create lagoons
Yep, Ik
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What is the name of the dam and when was it built
Aswan High Dam built in 1964
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What was the effect of the dam
BEFORE. Thick layer of silty mud deposits up to 4 m at Aswan & 9.6 m in the Cairo region •AFTER.Reduced sediment accreted from120 million tn/yrto only traceamounts today. Accelerated erosion in northwest Nile Delta. Retreat = 148 m/year.
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