Weathered limestone
Numéro d’image : 11744427
| Weathered limestone. Repeated freezing and thawing of water has caused this limestone cliff to be weathered along the bedding planes of the rock. The process,known as freeze-thaw action,occurs when water freezes in the cracks between solid rocks. It causes 9% enlargment of the fissures because water expands as it freezes. Repeated freezing and thawing eventually weakens the rock so much that it splits and a piece falls off. This final stage in the weathering process is called frost-splitting or congelifraction. The weathered rock collects beneath rock faces such as this in scree slopes (not seen). Photographed in the Dachstein Massif in the Austrian Alps | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Wiersma, Dirk |
| Taille de l’image : | 3443 px × 5078 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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