what are meanders and oxbow lakes
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An oxbow lake is a U-shaped lake that forms when a wide meander from the main stem of a river is cut off, creating a free-standing body of water. This landform is so named for its distinctive curved shape, which resembles the bow pin of an oxbow.
A meander is a winding curve or bend in a river. They are typical of the middle and lower course of a river. This is because vertical erosion is replaced by a sideways form of erosion called LATERAL erosion, plus deposition within the floodplain.
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1. Meanders:in the plain stretch of its course the downward erosion by the river is replaced by sideways or lateral erosion. Due to lateral erosion the bed of the stream becomes wider. Even a minor obstruction in its path makes the river changes its course and river flows making large curves called meanders.
2. Ox-BowLakes:is produced when a meander forms almost a complete circle and the meandering river cuts across the narrow neck of land. When silt is deposited at the entrance to this backwater, an ox-bow lake is created.
2. Ox-BowLakes:is produced when a meander forms almost a complete circle and the meandering river cuts across the narrow neck of land. When silt is deposited at the entrance to this backwater, an ox-bow lake is created.
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