Contact metamorphism is a type of metamorphism where rock minerals and texture are changed, mainly by heat, due to contact with magma. Regional metamorphism is a type of metamorphism where rock minerals and texture are changed by heat and pressure over a wide area or region.
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What is the difference between regional and dynamic metamorphism?
Regional metamorphism usually produces foliated rocks such as gneiss and schist. Dynamic Metamorphism also occurs because of mountain-building. These huge forces of heat and pressure cause the rocks to be bent, folded, crushed, flattened, and sheared.
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What is the difference between foliated and Nonfoliated metamorphic rock?
Foliated rocks have platy or elongate minerals aligned in roughly parallel planes or in wavy bands or planes. Nonfoliated rocks may show colored bands that reflect minute impurities in the rock, but the dominant minerals show no visible alignment.
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What is a difference between regional metamorphism and burial metamorphism?
8.3): When temperatures and pressures increase beyond the range of burial metamorphism, regional metamorphism takes over. Regional metamorphism takes place under high temperature and pressure conditions that may extend over large areas.
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What is the difference between foliated and Nonfoliated metamorphic rock quizlet?
Describe the difference between foliated and non foliated metamorphic rock. Foliated rocks most of the time contain aligned grains of flat minerals such as chlorite. non-foliated rocks is when the mineral grains are not arranged in planes or bands like it is in foliated rocks.
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What is foliated or Nonfoliated?
Foliated rocks are types of metamorphic rock that have parallel bands of grain. Non-foliated rocks are types of metamorphic rock that have no arrangement or bands of grain. Marble is a type of metamorphic rock that originates from limestone.
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What is dynamic metamorphism?
Dynamic metamorphism is the result of very high shear stress, such as occurs along fault zones. Dynamic metamorphism occurs at relatively low temperatures compared to other types of metamorphism, and consists predominantly of the physical changes that happen to a rock experiencing shear stress.
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What is a difference between regional metamorphism and burial metamorphism?
8.3): When temperatures and pressures increase beyond the range of burial metamorphism, regional metamorphism takes over. Regional metamorphism takes place under high temperature and pressure conditions that may extend over large areas.
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What are the two 2 main types of metamorphism?
There are two major kinds of metamorphism: regional and contact. Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also called dynamothermal metamorphism). These rocks were typically exposed to tectonic forces and associated high pressures and temperatures.
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What does regional metamorphism mean?
Regional metamorphism is metamorphism that occurs over broad areas of the crust. Most regionally metamorphosed rocks occur in areas that have undergone deformation during an orogenic event resulting in mountain belts that have since been eroded to expose the metamorphic rocks.
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What is the difference between regional and burial metamorphism?
8.3): When temperatures and pressures increase beyond the range of burial metamorphism, regional metamorphism takes over. Regional metamorphism takes place under high temperature and pressure conditions that may extend over large areas.
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What is the difference between metamorphism and regional metamorphism?
Regional metamorphism takes place over a much wider area. Contact metamorphism is taking place when magma is injected in the surrounding solid rock (country rock). Regional metamorphism is therefore the most widespread and common type of metamorphism.
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What is the difference between regional and dynamic metamorphism?
Regional metamorphism usually produces foliated rocks such as gneiss and schist. Dynamic Metamorphism also occurs because of mountain-building. These huge forces of heat and pressure cause the rocks to be bent, folded, crushed, flattened, and sheared.
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What happens in burial metamorphism?
Burial metamorphism occurs when sediments are buried deeply enough that the heat and pressure cause minerals to begin to recrystallize and new minerals to grow, but does not leave the rock with a foliated appearance.
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