Coastal Transportation and Deposition Flashcards

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What is coastal deposition?
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Coastal transportation involves material being transported by the sea being deposited or dropped.

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What is coastal deposition?
What is longshore drift also known as?
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Littoral drift

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What is longshore drift also known as?
What is the zig-zag movement of material along the shore by wave action called?
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Longshore drift

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What is the zig-zag movement of material along the shore by wave action called?
Why does coastal deposition occur?
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Wave energy reduces leading to material being deposited.

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Why does coastal deposition occur?
Describe how longshore drift transports material.
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Longshore drift happens when waves approach the beach at an angle. The swash (waves moving up the beach) carries material up and along the beach. The backwash (waves moving back down the beach) carries material back down the beach at right angles. This is the result of gravity. This process slowly moves material along the beach and provides a link between erosion and deposition. The material is transported through suspension, traction, solution and saltation. Longshore drift provides a link between erosion, transportation and deposition.

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Describe how longshore drift transports material.




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