Coastal Transportation and Deposition Flashcards

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What is traction?
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Traction – large pebbles and boulders are rolled along the seafloor.

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What is traction?
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?
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?
What is saltation?
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Beach material is bounced along the seafloor.

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What is saltation?
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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