processes of erosion

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  • Created by: Hafsa6
  • Created on: 29-11-15 17:45
Hydraulic Action
The pressure of the wave hitting the cliff, traps and compresses the air inside of the cracks and joints, weakening the rock.
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Abrasion (corrasion)
Waves hurl rocks agaisnt the cliff, and swirl sand backwards and forwards, wearing the rock away.
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Attrition
. Waves smash rocks and pebbles on the shore into each other, and they break and become smoother
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Corrosion (solution)
Acids contained in sea water will dissolve some types of rock such as chalk or limestone.
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Solution
Minerals are dissolved in sea water and carried in solution. The load is not visible. Load can come from cliffs made from chalk or limestone, and calcium carbonate is carried along in solution.
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Suspension
Small particles are carried in water, eg silts and clays, which can make the water look cloudy. Currents pick up large amounts of sediment in suspension during a storm, when strong winds generate high energy waves.
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Saltation
Load is bounced along the sea bed, eg small pieces of shingle or large sand grains. Currents cannot keep the larger and heavier sediment afloat for long periods.
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Other cards in this set

Card 2

Front

Waves hurl rocks agaisnt the cliff, and swirl sand backwards and forwards, wearing the rock away.

Back

Abrasion (corrasion)

Card 3

Front

. Waves smash rocks and pebbles on the shore into each other, and they break and become smoother

Back

Preview of the back of card 3

Card 4

Front

Acids contained in sea water will dissolve some types of rock such as chalk or limestone.

Back

Preview of the back of card 4

Card 5

Front

Minerals are dissolved in sea water and carried in solution. The load is not visible. Load can come from cliffs made from chalk or limestone, and calcium carbonate is carried along in solution.

Back

Preview of the back of card 5
View more cards

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