Petrified tree trunk. Petrification is the process by which organic material is converted to have a mineral composition. It occurs where plant material has been covered by sediments very rapidly. Photographed in the Petrified Forest National Park,Arizona,USA | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Craddock, Tony |
Taille de l’image : | 3600 px × 4800 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |