Coastal Landscape Development - Erosion (AQA A-Level Geography): Flashcards
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Practise the cards
10 cards from this deck
Discordant coastline
Discordant coastline
Geology runs perpendicular to coast
Wave refraction effect on headlands
Wave refraction effect on headlands
Concentrates wave energy on headland sides
Wave-cut platform
Wave-cut platform
Gently sloping platform formed by abrasion at cliff base
Max width of wave-cut platforms
Max width of wave-cut platforms
Rarely exceed 0.5 km
Cliff retreat cycle stages
Cliff retreat cycle stages
Wave attack → notch → stress → collapse → platform
Geo
Geo
Narrow, steep-sided coastal inlet along weakness lines
Blowhole
Blowhole
Hole where water forced up; formed by vertical erosion
Stack
Stack
Isolated pillar of rock after arch collapse
Erosional feature sequence
Erosional feature sequence
Geo → cave → blowhole/arch → stack → stump
Example of resistant coastal rock
Example of resistant coastal rock
Chalk, limestone, or granite