Thursday, April 23, 2009

Continuing Features Of The Lower River Course


Next we have the Meanders and the Ox-Bow Lakes!! As you can see the picture on the right shows two ox-bow lakes cut off from the river.
Here's a question, if the two ox-bow lake continues to erode and meet what would it be called then? Maybe a M-bow lake? Here's some information about meanders n ox-bow lakes!
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A meander is a bend or curve in the course of a river. The river constantly alters the shape of a meander by eroding the outer bank of the bend and depositing sediment on the slipoff slope, the inner bank of the bend.

Cut Off OR an ox-bow lake, is a term that refers to a meander in a river course which is literally cut off from the present river. When a meander has almost formed a complete loop, the narrow neck of land may be eroded in flood conditions, allowing the river to by-pass the bend. Silt begins to build up at the entrances to the cut off section, eventually creating a lake known as either a cut off or an ox-bow lake.


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