Coastal Processes in the UK

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23 Terms

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Constructive wave

A wave that creates beaches

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Destructive wave

A wave that destroys beaches

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Erosion

Wearing away and erosion of material by a moving force such as a wave

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Weathering

The wearing away of rock in its original place

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Solution

The dissolving of rocks into the water which are then carried along

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Abrasion

When rocks are thrown against the cliff causing them to become smaller

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Attrition

Sediment hitting together causing it to become smaller and more rounded

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Hydraulic Action

The power of the waves as smashing against the cliff causing air to get trapped into rocks. The pressure builds and is released causing the rocks to split apart.

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Suspension

Small sediment is carried along in the water

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Traction

Large sediment is rolled along the seabed

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Mass Movement

The downward movement of rock under the influence of gravity

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Slumping

When a mass of sediment moves down a slope progressively

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Mudslide

Mudslides occur when saturated soil and weak rock flows down a slope. These typically occur where cliffs are made up of boulder clay.

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Rockfall

A rockfall involves fragments of rock breaking away from the cliff face

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Longshore Drift

The movement of sediment across a coastline

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Spit

An extended stretch of sediment which projects out to see with a hooked end

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Bar

A stretch of sediment that connects two headlands together

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Tombolo

A stretch of sediment that connects the mainland to the island

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Sand Dunes

Masses of wind-blown sand found towards the back of the beach

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Soft Engineering

Natural methods to protect coastlines

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Hard Engineering

Man-made methods to protect coastlines

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Hard Cut Notch

A dent in a cliff formed by erosional processes

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Wave Cut Platform

A flag area of sediment found at the base of a cliff