V-shaped valleys are formed by the erosive effects of running water and U-shaped valleys are formed by the erosive effects of flowing glacial ice.
A valley is formed when pieces of the Earth's crust move apart from each other.
a rift valley forms when the lithospheric stretches, tension stress occurs, causing rock to pull apart, break, and form normal faults.s the hanging wall of a normal fault slide down the footwall, a...
valleys'
Rift valleys form where continents are separated by plate movement!!!