Petrified logs. Petrifaction is a term used to describe the fossilisation of wood. It occurs when pieces of wood,such as these logs,fall into sediments and are rapidly covered. Over a long period of time,the wood decays. As it decays,the wood is replaced by minerals which are deposited from solution in ground water. This forms a perfect replica of the original,even down to its growth 'rings'. Photographed in Arizona,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Parker, David |
Bildgröße: | 2911 px × 4199 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |