Permian Redbeds with Alternating Gypsum Layers

This photograph was taken in Caprock Canyons State Park, north of Quitaque, Texas. It shows some 300 to 350 million year old sediments laid down during the Permian age. The white layers are gypsum. Notice the folding of the strata to form a bowl shape which indicates that the strata were compressed and folded sometime after their deposition.