GEOLOGY

Detailed explanation-1: -When rivers flood, sediment gets deposited on the floodplain. This sediment is called overbank deposits.

Detailed explanation-2: -February 17, 2020 – Alluvial soils are soils deposited by surface water. You’ll find them along rivers, in floodplains and deltas, stream terraces, and areas called alluvial fans.

Detailed explanation-3: -Sediment that is deposited on floodplains and deltas by rivers and streams during seasonal flooding is called Alluvial soil. Alluvium is loose, unconsolidated soil or sediment that has been eroded, reshaped by water in some form, and redeposited in a non-marine setting.

Detailed explanation-4: -Floodplains are level strips of land on the sides of a channel that consist of fine‐grained silt and clay deposited during episodes of flooding. Higher ridges of sand and silt called natural levees are deposited near the edge of the channel.

Detailed explanation-5: -Floodplain Examples The Amazon River has over 1/3 of the world’s known species of plants and animals. It is incredibly diverse. The river floods each year during the wet season and covers around 100, 000 square miles of rainforest. The Ganges and Brahmaputra rivers flood annually.