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You are here: Story of the Jurassic Coast > Geology > Discover by Area > Peveril Point to Studland Bay
The geology in this stretch of coastline spans from the end of the Jurassic period near Durlston Head through the entire Cretaceous period (146-72 million years old) to the youngest rocks at South Beach, Studland Bay, although the last few million years of Chalk rocks (between 72- 66 million years) have subsequently been lost to erosion.
The coast to the west of Foreland Point is heavily influenced and controlled by the Purbeck monocline. The impact of the Purbeck monocline controls the Purbeck landscape, creating the impressive headlands, bays, ridges and vales in the area.
At the far eastern end of the World Heritage site, the Chalk sea stacks of Old Harry Rocks stand out in the sea and can be seen for miles. There is also the opportunity to view The Needles on the Isle of Wight. These two features are believed to have been connected many thousands of years ago before tectonic activity and erosion separated the lands.
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