Burial metamorphism.
When rocks stack on top of each other, particularly under significant pressure, the process of regional metamorphism can occur. This type of metamorphism typically happens over large areas, often associated with tectonic forces that create mountain ranges. The increased pressure and temperature cause changes in the mineral composition and texture of the rocks, resulting in the formation of metamorphic rocks such as schist or gneiss.
dynamic
Two types of metamorphism occur in earth's crust. One is when small volumes of rock come in contact with magma. And the other is when large amounts of the earth's crust are effected by heat and pressure
The short answer is that they don't! For metamorphism to occur rocks require either heat, pressure or a combination of the two. Both of these conditions occur together in the mantle, however they can occur in other places to. Such as in the rocks around igneous intrusions (high temperatures and low to moderate pressures) which cause contact metamorphism. It can also occur in zones of high tectonic stress (such as continental collision zones where mountains are being built where there is a relatively low temperature by mantle standards but very high pressure) which causes regional metamorphism. Finally in zones characterised by very high strains (e.g. the rocks in very close proximity to fault zones) metamorphism can occur. The type depends on the strain rate and the depth (which affects the pressure and temperature). This type of metamorphism is known as dynamic metamorphism). All the above conditions (and a number of others) can cause metamorphism to occur in sections of the earth outside the mantle. The differing types of metamorphism at differing temperatures and pressures create differing assemblages of minerals. These are known as metamorphic facies. Please see the related links for more information.
When rocks stack on each other, contact metamorphism can occur. This type of metamorphism happens when the high temperature and pressure from nearby molten rock alter the composition of the rocks in contact.
burial
When rocks stack up on each other, regional metamorphism can occur. This type of metamorphism is caused by high pressure and temperature deep within the Earth's crust, typically associated with tectonic activity like mountain building or collisions between tectonic plates. This process can lead to the formation of new minerals and textures in the rocks.
Burial metamorphism.
When rocks stack on top of each other, particularly under significant pressure, the process of regional metamorphism can occur. This type of metamorphism typically happens over large areas, often associated with tectonic forces that create mountain ranges. The increased pressure and temperature cause changes in the mineral composition and texture of the rocks, resulting in the formation of metamorphic rocks such as schist or gneiss.
dynamic
Two types of metamorphism occur in earth's crust. One is when small volumes of rock come in contact with magma. And the other is when large amounts of the earth's crust are effected by heat and pressure
When rocks grind and squeeze past each other due to tectonic forces, dynamic metamorphism can occur. This process can lead to the formation of mylonites, which are fine-grained rocks with a strong foliation formed from the intense deformation.
Metamorphism typically occurs at convergent boundaries, where tectonic plates collide, and at divergent boundaries, where plates move apart. It also occurs at transform boundaries, where plates slide past each other horizontally. Metamorphism can also occur at hot spots, where magma from the mantle rises to the surface.
dynamic
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.