Sea arch. Sea arch projecting from a cliff into the sea. Sea arches are formed when a land promontory is composed of rock that varies in hardness. The softer sections of rock are eroded by the sea to a greater extent. Initially,caves form on either side of the promontory and gradually grow deeper until they join to form an arch. A sea arch will continue to be eroded by waves,growing wider until it collapses. When this happens a stack remains,as seen at left. This sea arch is the Green Bridge of Wales in Pembrokeshire,Wales | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
Bildgröße: | 5512 px × 3230 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |