Rock pedestal. This landform is the result of gradual erosion of an isolated outcrop of clay-sandstone rock. Abrasion by wind-borne grains of sand mainly occurs nearer the ground,resulting in a greater rate of erosion at the base than at the top. This causes the rock's top-heavy appearance. Photographed in the Tassili n'Ajjer National Park,Algeria | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Parker, David |
Bildgröße: | 4666 px × 3744 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |