Deposition

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This is where the river dumps or leaves behind material that it has been carrying.

It deposits larger material first as this is the heaviest to carry. The smaller the load, the further down stream it can be transported, so this is deposited much further downstream than the larger load.

The river deposits material when there is a fall in velocity or the amount of water.

The normally occurs when the gradient changes at the foot of a mountain or when a river enters a lake or the sea

Deposition