Prevailing wind pushes sediment to beach, Longshore drift moves sediment down beach, A sudden change in direction of the coastline, Sheltered conditions allowing the sediment to be deposited., The material is deposited in a long, thin finger-like shape that extends out from the coastline., A hooked end often forms if there is a change in wind direction., On a mature spit, sand dunes will develop, In the sheltered zone behind the spit, a salt marsh develops..

spit

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