Coastal Landforms from Erosion
- Created by: Revisonf
- Created on: 06-01-14 18:26
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- Coastal Landforms from Erosion
- Waves cause most erosion at the foot of a cliff.
- This forms a wave-cut notch that makes the cliff above unstable.
- These both make the cliff so unstable that it eventually collapses
- The parts of the cliff above water are affected mechanical and chemical erosion.
- These both make the cliff so unstable that it eventually collapses
- The parts of the cliff above water are affected mechanical and chemical erosion.
- After the cliff collapses, it gets washes away and a new wave-cut notch is created.
- Repeated collapsing causes the cliff to retreat and a wave-cut platform remains.
- The rate of retreament depens of the geology of the cliff - if it is made up of soft rock or loose material.
- Vegetation - cliffs covered in vegetation are more stable as they're kept together.
- The rate of retreament depens of the geology of the cliff - if it is made up of soft rock or loose material.
- Repeated collapsing causes the cliff to retreat and a wave-cut platform remains.
- This forms a wave-cut notch that makes the cliff above unstable.
- Cliff collapses occur when the force of gravity is stronger than the force holding up the cliff.
- Mass movement: the movement of rocks down a slope.
- There are three types:
- Slides: where material shifts own a straight line
- Slumps: where materials move down with a rotation.
- Rockfalls: when materials fall down vertically
- There are three types:
- Some types of rocks are more resistant to erosion than others.
- Less resistant rocks are eroded quickly and form bays - a slope
- The resistant rocks are eroded more slowly and form headland - similar to a cliff, hanging out .
- Waves cause most erosion at the foot of a cliff.
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