Describe and examine the landforms that are produced as a result of costal deposition in an area you have studied.

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Pauline Mahon        -  -

`Describe and examine the landforms that are produced as a result of costal deposition in an area you have studied.

Deposition is defined as ‘the laying down of sediments, produced by weathering and erosion of landmasses…’. Deposition occurs when velocity decreases and therefore suspended sediment can no longer be transported. There are four main landforms that are resulting form landforms, beaches, spits and tombolos, forelands and barrier islands.

The area that I have studied is the Vale of Glamorgan Coastline form Merthyr Mawr Warren to Breaksea Point and within this area there are many depositional features. Most of the rock in the area was formed during the Jurassic period approximately 150 million years ago. Most of the rock formed in this period was limestone and shale. Lias is the most commonly found shale in this area, a soft, reddish coloured rock.

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Beaches are the most common of the four depositional features. They are created by deposited material from breaking waves; the constructive action is mainly effected by the swash. The swash is the turbulent mass of water, which flows up the beach following the breaking of a wave. The swash contains much of the suspended sediment, and this sediment is then deposited upon the beach.

In the area that I have studied there are many sandy beaches and two good examples of this are Dunraven Bay, and Traeth Mawr Beach. Both of these beaches have headland on either side, ...

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