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During metamorphism, pre-existing rocks, known as parent or protoliths, undergo changes in mineral composition and texture due to increased temperature, pressure, and chemically active fluids. This process can result in the recrystallization of minerals, the formation of new minerals, and the alignment of minerals, leading to foliation in some cases. Metamorphism can occur over millions of years and is often associated with tectonic activity, such as the collision of continental plates. The end products are metamorphic rocks, like schist or gneiss, which differ significantly from their parent rocks.

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How does (prograde) occur?

In general, the changes in mineral assemblage and mineral composition that occur during burial and heating are referred to as prograde metamorphism.


How many types of metamorphism occur in earth's crust?

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


What are the 4 ways by which metamorphism may occur?

Metamorphism can occur through contact metamorphism, where rocks are altered by heat from nearby magma; regional metamorphism, where rocks are subjected to high pressure and temperature over a large area; burial metamorphism, where rocks are subjected to increased pressure from being buried deep underground; and dynamic metamorphism, where rocks are deformed under high pressure but low temperature conditions along faults or shear zones.


When molten igneous material intrudes into rock what metamorphism can occur.?

contact


What is a change that may occur during metamorphism?

During metamorphism, one significant change that may occur is the alteration of the mineral composition of rocks due to high temperature and pressure. This process can lead to the formation of new minerals, such as the transformation of shale into schist, as well as changes in texture, resulting in a more foliated or banded appearance. Additionally, the rock's overall structure and physical properties, such as hardness and density, can also be modified.

Related Questions

How does (prograde) occur?

In general, the changes in mineral assemblage and mineral composition that occur during burial and heating are referred to as prograde metamorphism.


Which type of metamorphism is most likely to occur along the fault line?

Dynamic Metamorphism >.<


How does contact (prograde) occur?

In general, the changes in mineral assemblage and mineral composition that occur during burial and heating are referred to as prograde metamorphism.


What two properties of rock change during metamorphism?

During metamorphism, the texture and mineralogy of a rock can change. Texture refers to the size, shape, and arrangement of grains within the rock, while mineralogy refers to the types of minerals present in the rock.


Can metamorphism occur without deformation?

Yes, metamorphism can occur without deformation. Contact metamorphism, which results from high temperatures and pressures near igneous intrusions, can happen without significant deformation of the rock. Additionally, burial metamorphism can occur due to increased pressure from overlying rocks without accompanying deformation.


Does regional metamorphism occur under volcanoes?

Yes they do occur under volcanoes


What 2 things must increase for metamorphism to occur?

For metamorphism of rock to occur temperature and pressure must increase. Rocks created in this manner are called metamorphic rocks.


What must be present for metamorphism to occur?

The changes to the rock must occur in solid form.


When rocks stack on each other blank metamorphism can occur?

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.


When there is directed pressure on a rock metamorphism may occur.?

Dynamic


How many types of metamorphism occur in earth's crust?

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


What are the 4 ways by which metamorphism may occur?

Metamorphism can occur through contact metamorphism, where rocks are altered by heat from nearby magma; regional metamorphism, where rocks are subjected to high pressure and temperature over a large area; burial metamorphism, where rocks are subjected to increased pressure from being buried deep underground; and dynamic metamorphism, where rocks are deformed under high pressure but low temperature conditions along faults or shear zones.