UK Landscapes
- Created by: CallumD2
- Created on: 28-08-18 13:35
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- UK Landscapes
- Types of Erosion
- Attrition - Rocks that bash together to become smoother and smaller.
- Solution - A chemical reaction that dissolves rocks.
- Abrasion - Rocks hurled at the base of a cliff to break pieces apart
- Hydraulic Action - Water enters cracks in the cliff causing the crack to expand.
- Types of weathering
- Carbonation - Breakdown of rock by changing its chemical composition.
- Mechanical - Breakdown of rock without changing its chemical composition.
- Types of Transportation
- Solution - Minerals dissolve in water and are carried along.
- Suspension - Sediment is carried along in the flow of water.
- Saltation - Pebbles that bounce along the bed of the sea or river.
- Traction - Boulders that roll along a sea / river bed by the force of the flowing water.
- Types of Waves
- Destructive Waves - This wave has a backwash that is stronger than the swash therefore it erodes the coast.
- Constructive Waves - This wave has a swash that is stronger than the backwash therefore it builds up the coast.
- Formation of a Coastal Stack
- 1. Hydraulic Action widens cracks in the cliff face.
- 2. Abrasion forms a wave cut notch between High Tide and Low Tide.
- 3. Further abrasion widens the notch to form a cave.
- 4. Caves from both sides of the cliff break through to form an arch.
- 5. Weather above / erosion below collapses the arch leaving a stack.
- 6. Further weathering and erosion leaves a stump.
- How do waves form?
- Waves are created by the wind blowing over the surface of the sea. As the wind blows over , friction is created - producing a swell in the water.
- Types of Erosion
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