Fossilised log in Petrified Forest
Référence de la vidéo 11939981
| Close up of a fossilised log from an ancient forest in Petrified Forest National Park in Arizona, USA. Logs found here are from nine species of trees that existed over 225 million years ago. All are extinct today. Petrification occurred here when fallen trees were buried by mud and volcanic ash and their organic remains were replaced by minerals. | |
| Licence : | Droits gérés |
| Crédit : | Science Photo Library / Matulavich, Peter |
| Model Release : | Non requis |
| Durée : | 1 Secondes |
| Aspect ratio : | 16/9 |
| Restrictions : | - |
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