Petrified forest, Arizona, USA

Petrified forest, Arizona, USA

C022/8349 Rights Managed

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Credit: ADAM HART-DAVIS/SCIENCE PHOTO LIBRARY

Caption: Petrified forest. Petrification is a term used to describe the fossilisation of wood. It occurs when pieces of wood fall into sediments and are rapidly covered, preventing normal decay. Over long periods of time the wood decays. As it decays, the wood is replaced by minerals which are deposited from solution in ground water. This forms an exact replica of the original, preserving the texture of the bark and even the growth rings. Photographed in the Petrified Forest National Park, Arizona, USA.

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Keywords: american, arizona, biological, biology, botanical, botany, flora, forest, fossil, fossilised, fossils, nature, no-one, nobody, north america, palaeobotany, palaeontological, palaeontology, paleobotany, paleontological, paleontology, petrification, petrified, petrified forest national park, plant, prehistoric, prehistory, preserved, united states, us, usa, wood

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