Caves, blow holes and stacks Flashcards
1
Q
How are caves formed?
A
Weak areas, e.g. joints are eroded
2
Q
How is a blow hole formed?
A
The roof of a cave is weakened along a major joint by hydraulic pressure and the roof collapses
3
Q
How is an arch formed?
A
Caves on the opposite sides of a narrow headland eventually join up
4
Q
How do stacks form?
A
When an arch collapses
