A9R18EC.tmp 25 - A young river such as the diagram at the...

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Prof. M. Fall - University of Ottawa 25 Erosion is destruction (by desegregation and alteration) and displacement of solid materials (soil, rock and other particles) usually by the agents of currents such as, water, wind, water, or ice by downward or down-slope movement 4.2 Erosion of materials 4 Weathering and erosion… Les agents of erosion are Water Ice Wind 4.2 Erosion of materials 4 Weathering and erosion… Water Ice Wind 4.2 Erosion of materials 4 Weathering and erosion… Wind erosion Fluvial and coastal erosion Glacial erosion Chrystèle Verati Fluvial Erosion V shaped Valley Profiles 4.2 Erosion of materials Chrystèle Verati Fluvial Erosion William Morris Davis described the 'cycle of erosion' using a stream channel.
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Unformatted text preview: A young river , such as the diagram at the above left, is on a gradient. It is fast flowing and on a straight channel. As centuries pass, the river will erode its channel and banks, trying to get to the baseline or sea level. A mature river , sort of the go-between of stages depicts the river reaching base level, but the river would still erode along its banks, until eventually there are no banks left, creating a plane. This 'old' stage depicts a river in a meandering channel, bending its way through the area, trying to find the easiest route to the sea or another body of water. 4.2 Erosion of materials Coastal erosion Chrystèle Verati 4.2 Erosion of materials...
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