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The flow of water slows enough for the silt to be deposited.
It is called deposition. It occurs as friction or gravity overcomes the force of the moving water.
Sediments begin to be Deposited. This occurs or is been experienced mostly at the river mouth, where its water enters a larger body, like the sea. (i.e. at its distributaries).
A good example would be the ones in Death Valley, California. An alluvial fan is basically a fan-like structure formed from the mouth of a flattened and spread out stream (it looks like a fan).
weathering
As a river flow slows, the sediment starts to settle out. The water at the river's edge often has the lowest flow or movement so there will be more sedimentation.
When water slows down. When water slows down it no longer has the ability to carry a lot of sediment and so deposition occurs
The flow of water slows enough for the silt to be deposited.
It is called deposition. It occurs as friction or gravity overcomes the force of the moving water.
An alluvial fan is a depositional feature which is formed when fast moving water comes out of a canyon, slows, and deposits the sediment it is carrying on a flat plain into a fan shaped structure.
deposition
Wind-carried sediment falls to the ground when wind slows down or some obstacle, such as a boulder or clump of grass, traps the windblown sand and other sediment. When it comes into contact with any obstacle.
Runoff is water flowing over land that carries particles of sediment.
delta
erosion
the water slows down, causing the sediment to sink
Delta