Coastal Landscapes in the UK Flashcards
Describe the processes of freeze-thaw weathering.
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Freeze-thaw weathering occurs when rocks are porous (contain holes) or permeable (allow water to pass through). Water enters the rock and freezes. The ice expands by around 9%. This causes pressure on the rock until it cracks. Repeated freeze-thaw can cause the rock to break up.
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Describe the processes of freeze-thaw weathering.
Give an advantage of using rock armour to protect the coast.
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Cheap and efficient at reducing energy in waves approaching the coast.
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Give an advantage of using rock armour to protect the coast.
What is suspension?
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Beach material is suspended and carried by the waves.
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What is suspension?
Identify the main processes of coastal erosion.
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Corrasion, abrasion, hydraulic action, attrition and corrosion/solution.
Find out more about the processes of coastal erosion.
Identify the main processes of coastal erosion.
What 3 factors affect the size of waves?
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Fetch, wind speed and wind duration.
Find out more about waves.
What 3 factors affect the size of waves?
