Like the African examples, the Rhine rift is associated with volcanism and with a regional upwarp that forms raised borders to the rift. |
Monument Valley is not really a valley, but an upwarp of sedimentary rock that is at least 260 million years old, surrounded by sentinels that have yet to fully erode. |
It has been detached or cut off by an upwarp of the land between it and the Black Sea region. |