\The trunks of ancient trees are buried underground due to geological processes, and the lack of water or isolation from air makes the wood less prone to decay. The woody part is replaced by silica (or calcium carbonate, iron oxide, etc.) in groundwater solution, and the shape and internal structure of the tree trunk are preserved, thus forming wood fossils. Move the magnifying glass to observe the differences between ordinary wood, silicified wood, and silicified jade. In ancient times, plants and trees were buried in geological layers and underwent a long process of petrification to form wood fossils, known as ancient stone trees. Wood fossils, like other animal and plant fossils, are a highly valuable geological and paleontological relic resource, and are non renewable. When trees are buried by volcanic ash or submerged in silica rich groundwater during a volcanic eruption, they are isolated from oxygen to prevent bacterial decomposition. The volcanic ash or silica in the water gradually seeps into the trees, gradually replacing the original organic matter components until the trees become fossils. Compared to those in high temperature and pressure underground, becoming.
