BAYS AND HEADLANDS

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BAYS AND HEADLANDS
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Stage 1
Waves attack weak points in the headland through
processes of erosion (Abrasion, H Action,
Corrosion)
Cave
Weaknesses are enlarged and widened by erosion.
Caves begin to form
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Stage 2
The base of the arch is undercut with a Wave Cut
Notch
The cave erodes right through forming an arch. Or
caves form on both sides of headland.
The erosion continues and the arch gets larger..
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Stage 3
..and leaves a stack
The sea continues to break up the eroded material
into smaller pieces
The roof of the arch collapses due to gravity..
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Stage 4
A wave-cut platform is left as the headland
retreats
Stump
All that remains is a stump. Perhaps only visible
at low tide.
The sea continues to erode the stack