Question

Explain the types of river terraces.

Answer 1

River terrace, bench or step that extends along the side of a valley and represents a former level of the valley floor. Aterrace results from any hydrological or climatic shift that causes renewed downcutting. ... Another type of terraceis cut into bedrock and may have a thin veneer of alluvium, or sedimentary deposits.

Answer 2

River terrace,

• bench or step that extends along the side of a valley and represents a former level of the valley floor.
• A terrace results from any hydrological or climatic shift that causes renewed downcutting.
• It generally has a flat top made up of sedimentary deposits and a steep fore edge, and it may be the remains of an old floodplain, cut through by the river and left standing above the present floodplain level.
• Another type of terrace is cut into bedrock and may have a thin veneer of alluvium, or sedimentary deposits.
• In paired terraces, the terrace features on each side of a valley corresponption.