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en.wikipedia.org/wiki/Silt

Silt is granular material of a size between sand and clay, whose mineral origin is quartz and ... Clays are formed from thin plate-shaped particles held together by ... Silt, deposited by annual floods along the Nile River, created the rich, fertile soil ... in the 1960s whereby silt gradually started forming new land called "chars".

en.wikipedia.org/wiki/Floodplain

A floodplain or flood plain is an area of land adjacent to a stream or river that stretches from the banks of its channel to the base of the enclosing valley walls and experiences flooding during periods of high discharge. The soils usually consist of levees, silts, and sands deposited during floods. ... The floodplain during its formation is marked by meandering or anastomotic ...

www.reference.com/science/land-formed-mouths-rivers-deposited-silt-fe7d0098e3436048

Silt deposits at river mouths form landmasses called deltas, which are essentially ... The flow of river water gradually lessens as it approaches the mouth, or end, ...

www.answers.com/Q/Land_form_at_the_mouth_of_a_river_by_deposited_silt

The land formed by silt deposited at the mouth of a river is called a delta (named for the Greek letter, which is similarly triangular in shape). Delta 1. Flood plain 2.

www.answers.com/Q/What_do_you_call_Land_form_at_the_mouth_of_a_river_by_deposited_of_silt

The land formed by silt deposited at the mouth of a river is called a delta (named for the Greek letter, which is similarly triangular in shape). Delta 1. Flood plain 2.

www.nationalgeographic.org/encyclopedia/mouth

The river mouth is where much of this gravel, sand, silt, and clay—called ... When large amounts of alluvium are deposited at the mouth of a river, a delta is formed. ... These sediments form the flat, usually triangle-shaped land of a delta.

www.thefreedictionary.com/Deltas

A usually triangular alluvial deposit at the mouth of a river. ... Flat, alluvial land at a river mouth where it splits into many streams called distributaries. ... clay or silt or gravel carried by rushing streams and deposited where the stream slows down . geological formation, formation - (geology) the geological features of the earth.

www.enchantedlearning.com/geography/landforms/glossary.shtml

A delta is a low, watery land formed at the mouth of a river. It is formed from the silt, sand and small rocks that flow downstream in the river and are deposited in ...

www.scienceclarified.com/landforms/Basins-to-Dunes/Delta.html

A delta is a body of sediment deposited at the mouth of a river or stream where ... as gravel, sand, silt, and clay that it has picked up and carried along its course. .... The key to the creation of a delta, and its continual formation, is a river and the ...