Middle Course explained Flashcards
In a meander where is there more erosion?
There is more erosion on the side where velocity is greatest. The river cuts into the bank and becomes deeper. This increases deposition on the opposite side of the river forming a slip-off slope and the meander takes a common shape
How does the river become deeper?
The river cuts into the bank and becomes deeper
How does the meander get its common shape?
This increases deposition on the opposite side of the river forming a slip-off slope and the meander takes a common shape
How does the meander become a “swan neck” meander?
As the loop of a meander gets bigger, the outsides of the bend get closer together
How does the meander neck get cut off?
In times of flood the river may erode a new channel to straighten its course and completely cut off the meander neck
How is the ox bow lake formed?
The old channel becomes an oxbow lake as its ends are sealed by deposition.
What happens when the oxbow lake dries out?
It becomes filled with vegetation
