A photo of a wave-cut bench.

A photo of a wave-cut bench.

Detailed Description

The cliffs and wave-cut bench consist of light gray siliceous marine mudstone and sandstone of the Purisima Formation along Drakes Beach, near the Kenneth C. Patrick Visitor Center. The Pleistocene wave-cut terraces in the foreground are exposed during the winter months, when increased wave-action exposes them by eroding the beach sand. The Purisima Formation (Clark and Brabb, 1997) contains marine fossils that indicate the sedimentary rocks are of Miocene to Pliocene age.   


Image Dimensions: 900 x 675

Date Taken:

Location Taken: US