AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Petrified wood forest11/6/2023 ![]() ![]() However, petrified wood is most commonly associated with trees that were buried in fine grained sediments of deltas and floodplains or volcanic lahars and ash beds. Silica in the form of opal-A, can encrust and permeate wood relatively quickly in hot spring environments. Most of the organic matter often decomposes, however some of the lignin may remain. There needs to be a balance between the decay of cellulose and lignin and mineral templating for cellular detail to be preserved with fidelity. During replacement, the plant's cell walls act as a template for mineralization. Mineral-laden water flowing through the sediments may lead to permineralization, which occurs when minerals precipitate out of solution filling the interiors of cells and other empty spaces. The presence of water reduces the availability of oxygen which inhibits aerobic decomposition by bacteria and fungi. The petrifaction process occurs underground, when wood becomes buried in water or volcanic ash. Unlike other plant fossils, which are typically impressions or compressions, petrified wood is a three-dimensional representation of the original organic material. In some instances, the original structure of the stem tissue may be partially retained. The organic materials making up cell walls have been replicated with minerals (mostly silica in the form of opal, chalcedony, or quartz). Petrifaction is the result of a tree or tree-like plants having been replaced by stone via a mineralization process that often includes permineralization and replacement. Petrified wood, also known as petrified tree (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. Petrified log at the Petrified Forest National Park The remains of insects can be detected in an enlarged image. Polished slice of a petrified tree from the Late Triassic Epoch (approximately 230 million years ago) found in Arizona. For the Japanese film, see The Petrified Forest (1973 film). For the 1936 film, see The Petrified Forest. For a list of petrified forests, see § Occurrences.
0 Comments
Read More
Leave a Reply. |