Photo 26 (Return)

Gore Cliff and Blackgang, 2001. Marine erosion has cut significantly into the western margin of the Undercliff at this location, resulting in reactivation of the majority of the coastal slope. The sea cliffs are cut into Sandrock, the upper undercliff bench is formed within Gault Glay, mantled by a thick accumulation of landslide debris. The upper backscar is cut into Upper Greensand capped by Chert Beds. Major reactivation events in 1928, 1935, 1952, 1978 and 1994 have involved en masse seaward movements of debris across the upper bench with instability extending landward to the backscar toe.