Observe the picture. Describe the rock layers. Tell which rock layers are softer and which are harder. What process(es) do you think caused this rock formation? Why?
The picture shows reddish horizontal layers. There is vegetation growing on the sloped area and four steep-sided erosional remnants. The rocks forming these remnants are harder than the rocks that once filled in between them. Although their composition was probably similar, some factor caused these to be more resistant to erosion. Possible factors include different cementation or differing grain sizes. Differential erosion and weathering caused this formation. This is evidenced by the apparent continuation of the layers of rock from one remnant to another.
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