Coastal Landforms and Mass Movement

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Where do headlands and bays from?
H&B form where there are alternating bands of resistant and less resistant rock
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How are bays formed?
The less resistant rock is eroded quickly and this forms a bay.
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How is a headland formed? What kind of sides do headlands have?
The resistant rock is eroded slowly and is left sticking out, forming a headland. Headlands have steep sides.
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Explain how stacks are formed.
When headlands get eroded, it becomes cracked. As it expands, the crack becomes a cave. Due to further erosion, the cave becomes an arch. Erosion keeps wearing away the rock so the material is unsupported and collapses, leaving a stack.
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What is mass movement?
The shifting of rocks and loose material down a slope (e.g a cliff)
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What happens to the coast due to mass movement?
Mass movement causes the coast to retreat rapidly.
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Name the two types of mass movement.
Slides AND slumps
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What is a slide?
A slide is where material shifts in a straight line
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What is a slump?
A slump is where material shifts with a rotation
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Other cards in this set

Card 2

Front

How are bays formed?

Back

The less resistant rock is eroded quickly and this forms a bay.

Card 3

Front

How is a headland formed? What kind of sides do headlands have?

Back

Preview of the front of card 3

Card 4

Front

Explain how stacks are formed.

Back

Preview of the front of card 4

Card 5

Front

What is mass movement?

Back

Preview of the front of card 5
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