Petrification is the process of turning plant material into stone. This is done by infiltration with water that carries mineral particles. The original shape of the item remains unchanged after the process.Continue Reading
The petrification of wood is a common example of this process. In 1906, George Weber Wieland presented a theory proposing that wood petrification is based on five factors. Those factors include the tissue systems of the plant, temperature, minerals needed for silification or calcification, the duration of the chemical activity, and the nature of the embedding rock material.
The time it takes for petrification to occur varies depending on the minerals used. In general, the process takes a few hundred years to complete.Learn more about Geology
Live Science explains that fossilization can occur in a number of ways, the most common of which is called petrification. Once the soft organic tissues such as skin and muscle decay, the bones and other hard parts remain intact. As water covers the remains, minerals dissolved in the water seep into the bones, causing crystallization and preservation.Full Answer >
Mesophyll is the green material of a leaf that allows the plant to enact the process of photosynthesis. It consists of two different types of material that contain specific cells for biological processes.Full Answer >
An emerald, geologically-speaking, is a piece of beryl which has deep green coloration due to impurities within the stone. Emeralds belong to a family of beryl-based gemstones.Full Answer >
According to the Encyclopaedia Britannica, ventifacts are formed when windblown sand or other particles erode the surface of stone, resulting in polished, flattened facets. These facets are cut in sequence and correlate to the direction of the wind that blew the sound that eroded them. Ventifacts are found mainly in arid regions or areas with little to no vegetation.Full Answer >