alluvial fan
A deposit that forms where a river leaves a mountain range is called an alluvial fan. This fan-shaped deposit is created as the river slows down and deposits sediment and debris that it has carried from the mountains.
Alluvial fan.
This type of landform is known as an alluvial fan, which forms where a river's velocity decreases as it emerges from a mountainous area onto a flatter plain. The sediment carried by the river is deposited in a fan-shaped pattern due to the reduced energy of the flowing water.
A flood plain is a flat or gently sloping area near a river or stream that is prone to flooding. It forms when the river overflows its banks and deposits sediment on the adjacent land. Over time, this repeated flooding creates the flat surface of a flood plain.
A delta is a lowland formed by the deposition of silt at the mouth of a river. Deltas are typically formed where a river meets a body of water, such as an ocean or a lake, and the sediments carried by the river are deposited in the shape of a fan or triangle.
Alluvial Fan.
Alluvial Fan
A deposit that forms where a river leaves a mountain range is called an alluvial fan. This fan-shaped deposit is created as the river slows down and deposits sediment and debris that it has carried from the mountains.
Alluvial fan.
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Delta
delta
A deposit at the opening of a river is called delta.
An alluvial fan starts at just a build up of sediment at the mouth of a river. As the current moves, more and more sediment is lifted into the stream and carried until it hits a sediment deposit. As the sediment deposit gets bigger, it is exposed to the air and forms a sediment mountain. As the mountain gets bigger it forms an island in the middle of the mouth of a river. This is called an alluvial fan! Hope this was helpful!
An alluvial plain, sometimes also referred to as a fluvial plain.