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Both contact and regional metamorphism result in new types of rock from pre-existing types of rock whether it be from recrystallization, new crystal formation, or realignment of existing minerals.
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∙ 15y ago
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∙ 14y agoRegionally metamorphosed rock will generally display a foliated texture with banding or mineral layering. Generally, rocks that are contact metamorphosed do not, but may display an increased crystal size due to recrystallization of the parent material.
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∙ 11y agoIn altering the chemical &/or physocal naturfe of the affected rock.
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∙ 8y agoMagma intrudes into existing rock
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If metamorphism occurs due to heat generated by magma it is called what?
It is called contact metamorphism.
What kind of metamorphism occurs when intrusive magma forms a sill between two sedimentary rock strata?
contact metamorphism
What kind of metamorphism might take place at a divergent boundary?
When a divergent boundary occurs beneath oceanic lithosphere, the rising convection current below lifts the lithosphere producing a mid-ocean ridge!!!Hope i helped.
What is metamorphic?
Metamorphism is the process by which any kind of rock is changed into a metamorphic rock. Metamorphism uses heat and pressure to change the chemistry within a rock. An igneous rock will get "cooked" and look differently after the metamorphose. A sedimentary rock is composed by debris from older pre-existing rocks deposited in layers. These layers will become bent and the new rock will look "squeezed" after the metamorphose. Examples of metamorphosed rocks: Granite - Gneiss Shale - Slate Limestone - Marble
How do rocks turn in to sedimentary rock through the rock cycle?
Limestone, from heat, can melt into magma. Mainly, it is weathered and eroded back into calcium carbonate solution in the sea, with its insoluble fraction left as the sediment from which it was created. Lastly, heat and pressure (contact metamorphism) can alter it into marble (a metamorphic rock).
Why are metamorphic rocksformed by contact metamorphism usually not as dense as those formed by regional metamorphism?
Because contact metamorphism usually occurs because of an increase in temperature. In contrary, regional metamorphism is usually the result of compression. Compression makes a rock more dense.
Compare contact thermal metamorphism and regional dynothermal metamorphism and the types of rocks that result from each?
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.
What type of metamorphism contact or regional would result in a schist explain your choice?
Regional. Contact metamorphism is high temperature-low pressure so no mineral alignment occurs, only new mineral growth.
Difference between regional and local metamorphism?
regional metamorphism occurs over a large area while local metamorphism occurs over a small area.
If metamorphism occurs due to heat generated by magma it is called metamorphism?
It is called contact metamorphism.
What two geological processes are involved in changing sedimentary rock to a metamorphic rock?
The two processes resulting from sedimentary into metamorphic rock are known as contact metamorphism and regional metamorphism. Regional metamorphism most notably involves two tectonic plates colliding, while contact metamorphism occurs due to the intrusion of magma.
What causes contact metamorphism?
contact metamorphism occurs when hot magma bakes rocks
Which kind of metamorphism occurs next to an intrusion of molten magma?
Contact metamorphism can occur in this scenario.
What is the difference between contact and regional metamorphisim?
Contact metamorphism occurs when rocks are subjected to high temperatures and pressures due to proximity to a heat source, typically a magma intrusion. Regional metamorphism, on the other hand, is caused by widespread tectonic forces affecting large areas of rock, resulting in higher pressures and temperatures at deeper levels. Contact metamorphism is localized around the heat source, while regional metamorphism affects larger regions due to tectonic forces.
Which kind of metamorphism occurs next to intrusion of Molten Magma?
Contact metamorphism.
Is it true that regional metamorphism occurs deep in the earth's crust?
Yes
If metamorphism occurs due to heat generated by magma it is called what?
It is called contact metamorphism.
