Large sinkhole,or doline,on a limestone plateau in the Jura mountains of Switzerland. Such sinkholes form when limestone gets dissolved and eroded by rainwater,sometimes when caves collapse. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Alean, Dr. Juerg |
Bildgröße: | 6720 px × 4480 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |