Lower stage valleys are wide with gently sloping sides. There's a much wider flood plain cause by deposition.
EROSION
althought the velocity and discharge are highest in this stage, there's less erosion because the turbulence is lower and sediment particle size is reduced. some lateral erosion occurs during the formation of meanders.
TRANSPORTATION
Mainly smaller particles such as silt and clay carried by suspension or substances carried in solution.
DEPOSITION
Smaller particles such as sand silt and clay are deposited on the flood plain when the river floods and in the river mouth as the sea absorbs river energy.
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