Coastal Landforms
- Created by: verityhansen
- Created on: 26-05-15 22:32
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- Coastal Landforms
- Spits
- Longshore drift
- Moves material along a coastline.
- Spit forms when material is deposited.
- Spit grows and develops a hook when the wind changes direction.
- Waves cannot get past, allowing salt marshes to form.
- Spit grows and develops a hook when the wind changes direction.
- Spit forms when material is deposited.
- Moves material along a coastline.
- Longshore drift
- Bars
- Forms in the same way as a spit.
- Bars connect two headlands.
- Cut across a bay.
- Bars connect two headlands.
- Forms in the same way as a spit.
- Tombolos
- Forms the same way as a spit.
- The spit joins the headland to a mainland.
- Forms the same way as a spit.
- Bays
- In between two headlands.
- Two sections of harder rock, with softer rock in between the two.
- Hard rock is resistant.
- Soft rock is easily eroded.
- Bay forms as waves are refracted, so erode the coastline in a curve.
- Two sections of harder rock, with softer rock in between the two.
- In between two headlands.
- Stumps
- Hydraulic Action
- Creates sea caves and cracks in the rocks.
- Sea caves eroded through to make an arch.
- Arch collapses to form a stack.
- Stack is eroded to form a stump.
- Arch collapses to form a stack.
- Sea caves eroded through to make an arch.
- Creates sea caves and cracks in the rocks.
- Hydraulic Action
- Wave Cut Platforms
- Weathering weakens the top of a cliff.
- The sea erodes the base of the cliff, forming a wave cut notch.
- The notch increases in size, causing the cliff to collapse.
- Backwash causes the deposition to be taken out to see and the process repeats.
- The notch increases in size, causing the cliff to collapse.
- Cliffs
- Softer rock erodes more easily to make more gentle cliffs.
- Combination of erosion and weathering.
- Harder rock creates steeper cliffs.
- Erosion at the bottom of a cliff causes the cave to collapse and form a cliff.
- Combination of erosion and weathering.
- Harder rock creates steeper cliffs.
- Softer rock erodes more easily to make more gentle cliffs.
- Coves
- A band of more resistant rock is horizontal to the sea, with the softer rock behind it.
- Waves erode through a point in the harder rock.
- Waves are refracted so erode the softer rock in a circular shape.
- The sea comes in through the small gap in the resistant rock.
- Waves are refracted so erode the softer rock in a circular shape.
- Waves erode through a point in the harder rock.
- A band of more resistant rock is horizontal to the sea, with the softer rock behind it.
- Spits
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