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near the base of a mountain
As a stream leaves a mountain range, it may encounter flatter terrain and lower elevations. This can lead to the formation of valleys, plains, or even wetlands, depending on the local geography. The stream may also start to meander and slow down as it transitions from its mountainous origins.
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).
The River Severn does not have an alluvial fan. Rivers that empty into estuaries do not have alluvial fans.
An alluvial fanA delta on dry land is called an alluvial fan.
The alluvial fan deposited the river's sediment into the sea, creating a delta. As the glacier melted, an alluvial fan formed at the base of the mountain.
This is known as an Alluvial Fan. Please see related links.
Alluvial fans are when a river slows and deposits sediment on a flatter plain. This would be caused by eroson.
a fan-shaped accumulation of alluvial.
The bold parts are the differences:An alluvial fan is fan-shaped alluvial deposits created when fast flowing rivers slow down. A delta is a triangular area of alluvial deposits where a river divides before entering a large body of water.If you dont understand:An alluvial fan is just alluvial deposits in a fan shape. A delta is alluvian deposits in a triangular shape. Where and how they are created are totally different.Hope this helped (;
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