Patterned ground and stone circles formed above permafrost in the high Arctic on Spitsbergen,Svalbard. The patterns are formed by frost heave and freeze thaw cycles which pushed the large rocks out from the centre of the circle leaving the ice in the middle | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cooper, Ashley |
Taille de l’image : | 5760 px × 3840 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |