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What are the Three types of metamorphism?
contact metamorphism, regional metamorphism, dynamic metamorphism
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.
What are the 4 types of metamorphism?
contact metamorphism, regional metamorphism, dynamic metamorphism
Where does contact (prograde) occur?
Contact metamorphism occurs typically around intrusive igneous rocks as a result of the temperature increase caused by the intrusion of magma into cooler country rock. The area surrounding the intrusion where the contact metamorphism effects are present is called the metamorphic aureole. Contact metamorphic rocks are usually known ashornfels. Rocks formed by contact metamorphism may not present signs of strong deformation and are often fine-grained.
What causes contact metamorphism?
Contact metamorphism is caused by the heat and chemical activity of nearby magma or lava intruding into the surrounding rock. This results in the alteration of the rock through recrystallization without melting, leading to the formation of new minerals and textures. The temperature and pressure conditions of contact metamorphism are usually lower than those of regional metamorphism.
If metamorphism occurs due to heat generated by magma it is called metamorphism?
It is called contact metamorphism.
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.
What are the three main types of metamorphism Compare and contrast the factors that cause each type?
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.
Would contact metamorphism or regional metamorphism be a product of 2 plates colliding?
Regional metamorphism would be the product of two plates colliding. The intense pressure and temperature generated during plate collision can create regional metamorphism, which affects a larger area and involves the recrystallization of rocks. Contact metamorphism, on the other hand, is caused by heat from a nearby magma intrusion and affects rocks in a localized area.
Which kind of metamorphism occurs next to an intrusion of molten magma?
Contact metamorphism occurs next to an intrusion of molten magma. This type of metamorphism happens when hot magma comes into contact with existing rock, causing the rock to undergo changes in mineralogy and texture due to the heat and pressure.
The kind of metamorphism that occurs when rock come into contact with a heat source such as magma and the rock surrounding the heat source get cooked?
It is called contact metamorphism. It takes place when the magma at high temperature tries to break out from the magma chamber, it then comes into contact with the country rock at high pressure and temperature.
How does contact metamorphism relate to plate tectonics?
Convergent plate boundary, because it is associated with plutonism. It is the result of the temperature increase from the intrusion into the surrounding country rock. More info: http://geology.csupomona.edu/alert/metamorphic/contact.htm http://en.wikipedia.org/wiki/Metamorphism http://geology.csupomona.edu/alert/metamorphic/contact.htm
