Landforms of Coastal Deposition Flashcards

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What is a sand dune?
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A sand dune is a small ridge or hill of sand found at the top of a beach, above the reach of the waves.

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What is a sand dune?
Identify 3 landforms of coastal deposition.
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Beaches, sand dunes, spits and bars.

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Identify 3 landforms of coastal deposition.
Explain the formation of a bar.
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A bar is created when there is a gap in the coastland with water in it. This could be a bay or a natural hollow in the coastland. The process of longshore drift occurs and this carries material across the front of the bay. Material is pushed up onto beaches at a 45-degree angle when the swash brings it onto the coastline. The backwash takes it back out towards the sea at a right angle to the coast. Through this process, the material is constantly moved along the coastline. The deposited material eventually joins up with the other side of the bay and a strip of deposited material blocks off the water in the bay. The area behind the newly formed bar is known as a lagoon.

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Explain the formation of a bar.
What is an off-shore bar?
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An offshore bar is a raised area of seabed that is found offshore.

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What is an off-shore bar?
What is a spit?
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A spit is an extended stretch of beach material that sticks out to sea and is joined to the mainland at one end.

Aerial view of Spurn Point from the mouth of the Humber Estuary

Aerial view of Spurn Point from the mouth of the Humber Estuary

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What is a spit?




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