Erosional processes Flashcards
1
Q
What is erosion?
A
Wearing away of coastal landscapes
2
Q
Name the erosional processes?
A
- Abrasion
- corrosion
- Hydraulic action (cavitation)
- attrition
- wave quarrying
- solution
3
Q
Where does the material for erosion come from?
A
- beach
- cliff
- offshore
4
Q
What is abrasion
A
Sediment being dragged along surfaces
5
Q
what is corrasion
A
Sediment being hurled at the cliff
6
Q
What is hydraulic action?
A
sheer force of the waves on the cliff
7
Q
What is cavitation?
A
Waves trapping air inside crack s of the cliff and compresses it which weakens the joints
8
Q
What is attrition?
A
Sediment rubbing against each other and nd becoming smoother and rounder
9
Q
What is wave quarrying
A
Waves scooping out soft rock
10
Q
What is solution?
A
Sea water being slightly acidic reacting with the alkaline cliff
