River landforms/ features Flashcards
1
Q
How are V shaped valleys made
A
Are produces as the river erodes it’s bed
The river erodes vertically i.e downward, producing steep valley sides
2
Q
What’s a meander
A
A large sweeping bend in the river
3
Q
How is a meander produced
A
Water is pushed into the outer bend
Water is moving very slowly on the inside bends and deposition occurs here
Overtime the meanders change shape and size
4
Q
What’s an oxbow lake
A
When the river floods it breaks through the this meander neck and the river takes the easier route (strains route)
Overtime a oxbow lake will be taken over by vegetation.
5
Q
What’s a floodplain
A
The area of land which the river flows over is very flat. During times of flood, a river will overflow its banks and cover the surrounding land
