Tuesday, April 13, 2010

Coastal Landforms: Depositional Features

Wave Built Platform:
A terrace on the seacoast, formed by the merging of a wave-built terrace and a wave cut platform. An embankment of loose material on the coast.





Spit:
At one end spits are connected to the land, and on the other hand they are in open water. They are formed by the movement of sediment, usually sand, along the shore by the process of longshore drift. When the wave is no longer able to carry the load of
sediment then it is deposited in the form of a spit.





Barrier Island:
A coastal landform and type of barrier that are narrow strips of sand that run parallel to the land. They often occur in chains of many islands. Like spits they are formed by the dropping off of sediment.





Tombolo:
An island that is attached the mainland usually by a small strip of land such as a spit. When many of these islands are linked together then it is called a tombolo.



Bar:
An elevated reigon of sand or gravel that has been deposited by the flow of the ocean. There are many different kinds and they are often connected to things such as tomobolos or barrier islands.

1 comment:

  1. A wave cut terrace (platform) is an erosional feature on an emergent coast.

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