coastal processes and erosion landforms caves, arches, stacks and stamps by ella, freddie and olivia
Post on 22-Dec-2015
219 Views
Preview:
TRANSCRIPT
Coastal Processes and Erosion Landforms
Caves, Arches, Stacks and Stamps
By Ella, Freddie and Olivia
CavesCaves 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.
StackA 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.
top related