chemical
Contact metamorphism
contact metamorphism, regional metamorphism, dynamic metamorphism
contact metamorphism, regional metamorphism, dynamic metamorphism
The three main types of metamorphism are: Regional Metamorphism Contact Metamorphism Hydrothermal metamorphism Regional metamorphism is caused when high temperature and pressure affect large regions of Earths crust, It can range from low grade to high grade. It causes folded rock layers. Contact Metamorphism is when molten material comes in contact with solid rock. High temperature and moderate to low pressure from mineral assemblages. Metamorphic effects decrease with distance. Hydrothermal Metamorphism is when very hot water reacts with rock and alters its chemical and mineral composition. As hot fluids migrate in and out of the rock during metamorphism the original mineral composition and texture of the rock change.
Types of metamorphism are Contact Metamorphism Regional Metamorphism Cataclastic Metamorphism Hydrothermal Metamorphism Burial Metamorphism Shock Metamorphism (Impact Metamorphism)
Very low grade regional metamorphism.
Contact metamorphism occurs locally, next to igneous intrusions and along fractures that were in contact with hydrothermal fluids. Regional metamorphism occurs over very large areas, such as deep within the cores of rising mountain ranges, and generally occurs with the folding of rock layers. Both result in the formation of metamorphic rocks.
Regional metamorphism is a widespread precess involving both heat and directed pressure, and is involved in things like mountain building and activity deep with in the core. Contact metamorphism is local processes involving low to moderate pressure and high temperature. This type is adjacent to igneous intrusion and along fractures in contact with hydrothermal (hot!) fluids at mid-ocean ridges.
contact :)
contact metamorphism is what happens when something is really hot. regional metamorphism on the other hand involves much larger packages of rocks.
contact metamorphism is what happens when something is really hot. regional metamorphism on the other hand involves much larger packages of rocks.
Burial metamorphism differs from regional and contact metamorphism in that it is the result of rocks being buried deeper into the earth's crust through tectonic movements.