If you want to avoid the threat of a flooded house, it is a good idea to not build your home in an alluvial plain.
alluvial fan
The Mississippi Alluvial Plain is a flat, low-lying region located along the Mississippi River in the southeastern United States. This region is known for its rich alluvial soils that are highly fertile and support agricultural activities such as farming. The relief of the Mississippi Alluvial Plain is generally low, with elevations ranging from sea level to a few hundred feet above sea level.
The Abyssal Plain is the lowest part in the ocean you wouldn't want to go down there.
An alluvial plain is periodically flooded by its river (it is a flood plain) and therefore any buildings built on it will likely be periodically inundated. This in itself does not make it unsuitable to build on but residential housing would either have to be built on stilts or flood prevention measures would be required on the river (not good for the environment). Further alluvial ground is only poorly consolidated and deep pilings will be needed to ensure buildings are stable. One must also take account that if the area is subject to earthquakes alluvial plains are likely to shake more and the ground may turn to quicksand. Finally alluvial planes are frequently sources of precious mineral material (sand and gravel) and if you build over this you prevent the deposits from being used. Thus overall alluvial plains are not suitable to build on.
A fan-shaped deposit of rock and soil is called an alluvial fan. It is formed when sediment is carried by flowing water and then deposited on a flat plain, typically found at the base of a mountain or hillslope. Alluvial fans are common in arid and semiarid regions.
clay, silt, sand, and gravel makes very fertile soil near river it is alluvial. alluvial plain means delta plain or region.
The sentence with the word 'alluvial': Alluvial soil is formed by the deposition of clay, silt and gravel carried by the rushing water stream which is deposited in the plains where the stream slows.
alluvial plain, coastal plain, delta, delta plain.
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.
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alluvial fan
A bajada is an alluvial plain formed at the base of a mountain by the coalescing of several alluvial fans.
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A plain that has formed from periodically overflowing river.
Alluvial
She wore a plain shirt. That is a very plain design. Plain as can be, he walked over here.
acres, agricultural region, alkali flat, alluvial plain