| Horst | Graben |
|---|---|
| Forms when two parallel faults move away from each other, causing the central block to be uplifted. | Forms when two parallel faults move towards each other, causing the central block to be downfaulted. |
| Has uplifted blocks of land that are separated by steeply dipping faults. | Has downfaulted blocks of land that are separated by steeply dipping faults. |
| Often creates linear mountain ridges or plateaus. | Often creates linear valleys or basins. |
