How do the valleys form in a basin-range province?
As extension and uplift occur, erosion and sedimentation happen simultaneously but at slower rates. As extension slows down, erosion and sedimentation can overcome mountain building. A typical rift features inlude down-dropped faults and uplifted escarpments. The valleys become filled with erosional sediment.
Typical rift features include
- Down-dropped faults (valleys)
- Uplifted escarpments (mountains)
- Lakes form on floor of sediment-filled valleys