3. BAYS AND HEADLANDS

6. Weaknesses are enlarged and widened by erosion. Caves begin to form
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

7. 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…..

8. Stage 3 …..and leaves a stack
The roof of the arch collapses due to gravity…..
The sea continues to break up the eroded material into smaller pieces

9. 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