costal change and conflict Flashcards
1
Q
properties of soft rock
A
- easily eroded by sea
- cliffs less rugged + steep than hard rock
- makes bays
2
Q
properties of hard rock
A
- resistant to all types of erosion
- cliffs high, steep + rugged
- creates wavecut platforms, headlands, caves, arches + stakes
3
Q
what are joints?
A
small cracks
4
Q
what are faults?
A
large cracks
5
Q
4 factors affected rates of erosion
A
- geological structure
- wave climate
- local currents + tide range
- groundwater levels
6
Q
what is geological structure
A
if there is soft or hard rock or both
7
Q
what is wave climate
A
how powerful the waves are
8
Q
what are the 5 steps of a headland formation
A
- crack
- cave
- arch
- stack
- stump
9
Q
how are wavecut platforms formed
A
- the sea gets into a crack at the bottom and erodes the rock
- rockface overhangs
- rock face collapses and wave cut platform is formed.