1.7 River Rejuvenation Flashcards
0
Q
How does a river become rejuvenated?
A
A fall in base level creating a knick point will allow the river to have more energy to erode irregularities
1
Q
What is rejuvenation?
A
When a river is trying to achieve a state of equilibrium (balance) with the environment and re-establish its smooth long profile
2
Q
What are the two main causes of rejuvenation?
A
Sea level change and river capture
3
Q
How does sea level change cause rejuvenation?
A
Sea levels falling faster=knick point close to the coast
4
Q
How does river capture cause rejuvenation?
A
Headward erosion back towards a rivers source can cause a river to break into a valley. Considerable difference in height can form a waterfall.
