Glacial Valleys Flashcards
1
Q
Characteristics u-shaped valley
A
very wide and relatively straight, gently curved sides, ‘U’ shaped, small stream, grassed surfaces, glacial ‘trough’
2
Q
Characteristics u-shaped valley
A
A valley that has been shaped by a river is narrow, steep, V-shaped, has interlocking spurs of hard land and rock scree
3
Q
Before glaciation
A
the river carves out a V shaped valley because it erodes out the base
4
Q
During glaciation
A
The ice fills the whole valley
5
Q
Rates of erosion
A
increase and also it wears away all of the sides of the valley
6
Q
Valley walls and floors
A
are eroded wider and deeper
7
Q
When the glacier melts
A
A river flows again in the valley. It did not cause the erosion and is called a ‘misfit’ stream.
