COASTS: Headland erosion Flashcards
1
Q
How is a notch formed?
A
Marine processes pick weakness at base, forming a notch.
2
Q
How is an arch formed?
A
Sea waves cut through a headland, forming an arch.
3
Q
How is a sea cave formed?
A
A notch develops by hydraulic action and abrasion to form a cave.
4
Q
How is a blow hole formed?
A
Weakness in rock at the top of a sea cave is picked out by hydraulic action to form a channel reaching the surface of the headland as a blow hole.
5
Q
How is a stack formed?
A
The roof of a former arch eventually collapses, leaving a stack.
6
Q
How is a stump formed?
A
A stack continues to be eroded away, resulting in a smaller stack - a stump.
