Stump of a fossil palm tree,near Neapoli,Greece. It forms when plant material is buried by sediment and protected from decay by oxygen and organisms. Then,groundwater rich in dissolved solids flows through the sediment replacing the original plant material with silica,calcite,pyrite or another inorganic material such as opal | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Parker, David |
Taille de l’image : | 4828 px × 7235 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |