Petrified wood - Wikipedia
网页Petrified wood (from Ancient Greek πέτρα meaning 'rock' or 'stone'; literally 'wood turned into stone'), is the name given to a special type of fossilized wood, the fossilized remains of terrestrial vegetation.
What is Petrified Wood? How Does it Form? - Geology.com
网页Petrified wood is a fossil. It forms when plant material is buried by sediment and protected from decay due to 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.
The World’s Oldest Forest Has 385-Million-Year-Old Tree Roots
网页2019年12月19日 · An aerial view of a fossil of Archaeopteris, a 385-million-year-old tree with surprisingly modern-looking roots. William Stein and Christopher Berry. At three trillion strong, Earth’s trees are...
Fossil wood - Wikipedia
网页Fossil wood, also known as fossilized tree, is wood that is preserved in the fossil record. Over time the wood will usually be the part of a plant that is best preserved (and most easily found). Fossil wood may or may not be petrified, in which case it is known as petrified wood or petrified tree.
Petrified Wood: A Journey From Tree to Stone | HowStuffWorks
网页2023年10月26日 · Petrified wood refers to a fossil formed when the organic components of woody plant material are gradually replaced by minerals, predominantly silica, via a process called permineralization. This process can only take …
Petrified wood | Fossilization, Formation, Preservation | Britannica
网页Petrified wood, fossil formed by the invasion of minerals into cavities between and within cells of natural wood, usually by silica (silicon dioxide, SiO2) or calcite (calcium carbonate, CaCO3). The petrified forests of the western United States are silicified wood, the tree tissues having been.
Petrified Wood - U.S. National Park Service
网页2018年3月16日 · The park is host to numerous types of plant fossils including complete logs, upright stumps, delicate ferns and gymnosperm leaves, and pollen spores. Most of the petrified trees have been given the scientific name Araucarioxylon arizonicum.
Remains of Earth’s oldest forest found in New York
网页2019年12月20日 · Scientists found fossilized root systems of ancient trees - from what's now Earth's oldest known forest - near Cairo, New York. They looked "surprisingly modern," the scientists said.
What is petrified wood, and how does wood turn to stone?
网页2024年6月14日 · Petrified wood and its fossilized pinecone siblings can often look like regular wood until you handle them and realize they are much, much heavier and harder than you might expect.
Petrified Wood Virtual Museum | FossilForests.org
网页Collectors of petrified wood focus on permineralized plant material related to arborescent (tree-like) plant life. Fascination with fossil wood may be related to human reverence for living trees. Trees provide humans and other organisms with shelter and food.