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In geology, petrifaction or petrification (from Ancient Greek πέτρα (pétra) 'rock, stone') is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
Notable Examples of Petrified Fossils. Petrified fossils range from fragmented wood and bone to remarkably complete organisms captured in astounding detail. Here are some of the most impressive petrified specimens ever discovered: Petrified Forests. Immense stone trees are the most iconic petrified remains.
28 lut 2024 · A fossil is the preserved remains, impression, or trace of any once-living organism from a past geological age. These include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants.
Petrified fossils result from permineralization, the replacement of once-living matter by minerals. Solutions containing silicates, carbonates, iron or other minerals seep into the gaps and spaces between the cells, first encasing the cells and eventually replacing the cells themselves.
7 cze 2019 · Petrified wood is a familiar example of fossilization—pieces of tree trunks turn into super-hard rocks, but still retain growth rings and even cell structures of the once-living tree. How does...
5 dni temu · fossil, remnant, impression, or trace of an animal or plant of a past geologic age that has been preserved in Earth’s crust. The complex of data recorded in fossils worldwide—known as the fossil record —is the primary source of information about the history of life on Earth.
8 lip 2024 · A petrified fossil is a type of fossil that has undergone petrification, a process that turns organic material into stone or a stone-like substance. How does petrification occur? Petrification occurs when organic matter decays and is gradually replaced by minerals, often carried by groundwater.
