|Image: diagram of an escarpment.|
An escarpment is a landscape formed by differential erosion.
Differential Erosion means lower or higher erosion of different rocks depending
on their resistance.
In sediments, there are always harder and softer layers, so weathering of this
rock will always produce escarpments.
The hard rocks form cliffs, as the softer layers below are eroded faster,
undermining the hard rocks above.
So the hard rock is breaking down, forming sharp edges, instead of being rounded
If the layers are horizontal, the result is called a cliff.
If they are sloping with a dip less than 30°, the result is called
escarpent or cuesta, an asymmetric ridge with a steep side across
the layer and a shallow side on the top of the layer, sloping with the dip of
the layer itself.