100 likes | 554 Views
Coastal Processes and Erosion Landforms. Caves, Arches, Stacks and Stamps By Ella, Freddie and Olivia. Pictures. Caves.
E N D
Coastal Processes and Erosion Landforms Caves, Arches, Stacks and Stamps By Ella, Freddie and Olivia
Caves • Caves are formed where coastlines consist of resistant rock such as limestone. When corrosion and hydraulic action by waves occurs it creates a widening that weakens and forms a cave. • Definition: a large underground chamber, typically of natural origin, in a hillside or cliff.
Arch • If a cave is created at a headland there is a possibility of it deepening and widening by the sea resulting in an natural arch.
Stack • A stack occurs when waves continue to erode at the foot of the arch until the top becomes overly heavy and can no longer be supported. • Definition: a column of rock standing in the sea, remaining after erosion of cliffs.
Stump • When the base of the stack is battered by the water it results in the stack collapsing leaving a stump behind.