The buildup of a flat valley floor bordering a river channel as repeated overbank floods deposit fine sediment across the surrounding land. Floodplains grow through lateral channel migration and vertical sediment accretion together, and their fertile deposits have long made them centers of settlement and agriculture.
Facts
Partially Attested
Process TypeThe source describes flood deposits beside a river channel but does not name the atlas process-type category. Timescale
Timescale (category) Floodplain Formation
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Source Rio Grande Valley (Wikipedia)
Source Rio Grande Valley (Wikipedia)
Sources
1. Floodplain (Wikipedia)
Wikipedia infobox 'Lead section' = 'A floodplain or flood plain or bottomlands is an area of land adjac...' on 'Floodplain'View the Source 2. Floodplain (Wikipedia)
Lead paragraphQuote, Lead paragraph
A floodplain or flood plain or bottomlands is an area of land adjacent to a river that stretches from the banks of the river channel to the base of the enclosing valley and experiences flooding during periods of high discharge.
Rio Grande Valley (Wikipedia)
Wikimedia FoundationShaped: The Rio Grande Valley, Lead
It is located along the border of Texas with Mexico located in a floodplain of the Rio Grande near its mouth.
Shaped: Rio Grande Valley, Lead
It is located along the border of Texas with Mexico located in a floodplain of the Rio Grande near its mouth.
View the Source Sepik (Wikipedia)
Shaped: Sepik River, Formation statement for target 287625Quote, Shaped: Sepik River, Formation statement for target 287625
There is a 5-to-10-kilometre-wide (3.1 to 6.2 mi) belt of active meanders along most of its course, that has created a floodplain up to 70 kilometres (43 mi) wide, with extensive backwater swamps.
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