What type of metamorphism can occur?
Three types of metamorphism exist: contact dynamic and regional. Metamorphism produced with increasing pressure and temperature conditions is known as prograde metamorphism. Conversely decreasing temperatures and pressure characterize retrograde metamorphism.
What is a metamorphic setting?
Section 1 Metamorphic Rock Type and Tectonic Setting
Metamorphism is a process of mineral assemblage and texture variation that results from the physical-chemical changes of solid rocks caused by factors such as crust movement magma activity or thermal fluid change in the earth.
What are the types of metamorphism?
The three types of metamorphism are Contact Regional and Dynamic metamorphism. Contact Metamorphism occurs when magma comes in contact with an already existing body of rock. When this happens the existing rocks temperature rises and also becomes infiltrated with fluid from the magma.
In what type of geologic setting would you expect to find contact metamorphism?
Where would regional metamorphism occur?
What is metamorphism quizlet?
Metamorphism. Metamorphism is the transformation. of preexisting rock into texturally or. mineralogically distinct new rock as a result of high temperature high pressure or both..but without the rock melting in the process. Solid state.
What are the four types of metamorphism?
- Type # 1. Contact Metamorphism:
- Type # 2. Regional Metamorphism:
- Type # 3. Hydro-Metamorphism:
- Type # 4. Hydro-Thermo-Metamorphism:
What type of metamorphism occurs in subduction zones?
What is regional metamorphism?
What are the 6 types of metamorphism?
- Type # 1. Contact or Thermal Metamorphism:
- Type # 2. Hydrothermal Metamorphism:
- Type # 3. Regional Metamorphism:
- Type # 4. Burial Metamorphism:
- Type # 5. Plutonic Metamorphism:
- Type # 6. Impact Metamorphism:
What is metamorphism mention the types of metamorphism?
New minerals grow but the rock does not appear to be metamorphosed. The main minerals produced are often the Zeolites. Burial metamorphism overlaps to some extent with diagenesis and grades into regional metamorphism as temperature and pressure increase. Shock Metamorphism (Impact Metamorphism)
What are the 7 types of regional metamorphism?
Contact Facies Series (very low-P) Buchan or Abukuma Facies Series (low-P regional) Barrovian Facies Series (medium-P regional) Sanbagawa Facies Series (high-P moderate-T) Franciscan Facies Series (high-P low T).
Where can contact metamorphism occur?
Contact metamorphism is thus primarily a thermal phenomenon. It may occur in diverse tectonic settings such as in orogenic or anorogenic environments in plate interiors or along plate margins.
What is contact metamorphism?
Contact metamorphism is a static thermal metamorphism in the vicinity of hot intrusive igneous bodies and metamorphic rock is formed within the zone of contact metamorphism—contact aureole.
Where does dynamic metamorphism occur?
What are the types of regional metamorphism?
What is an example of regional metamorphism?
Regionally metamorphosed rocks usually have a squashed or foliated appearance – examples include slate schist and gneiss (pronounced “nice”) formed by metamorphism of mudstones and also marble which is formed by metamorphism of limestone.
Where does hydrothermal metamorphism occur?
Hydrothermal Metamorphism (Fig. 8.3): typically occurs along mid-ocean ridge spreading centers where heated seawater percolates through hot fractured basalt. Chemical reactions between the heated seawater and basalt result in metamorphism of the basalt.
What causes metamorphism quizlet?
-a change in the texture structure or chemical composition of a rock due to changes in temperature and pressure over a large area generally as a result of tectonic forces. Impact metamorphism. –Caused by meteorite impacts. The shock of the impact results in very high pressures and temperatures.
Where does contact metamorphism occur quizlet?
Contact metamorphism occurs when the country rock is affected by heat from an intrusion. Igneous bodies are intrude at relatively shallow depth so contact metamorphism is described as high temperature low pressure metamorphism. High temperatures lead to recrystallised unfoliated rocks in an aureole.
How does burial metamorphism occur quizlet?
Metamorphism which occurs due to the increase in pressure and temperature resulting from burial (particularly within sedimentary basin systems). … Pressure applied equally on all surfaces of the body as a result of burial or submergence. Confining pressure is directly related to the depth of submergence.
What happen during metamorphism?
During metamorphism protolith chemistry is mildly changed by increased temperature (heat) a type of pressure called confining pressure and/or chemically reactive fluids. Rock texture is changed by heat confining pressure and a type of pressure called directed stress.
What are the 2 main types of metamorphic rocks?
There are two main types of metamorphic rocks: those that are foliated because they have formed in an environment with either directed pressure or shear stress and those that are massive (not foliated) because they have formed in an environment without directed pressure or relatively near the surface with very little …
What are the two kinds of metamorphism?
- Contact metamorphism—occurs when magma contacts a rock changing it by extreme heat (Figure 4.14).
- Regional metamorphism—occurs when great masses of rock change over a wide area due to pressure exerted on rocks at plate boundaries.
Does metamorphism occur in subduction zones?
What kind of metamorphism occurs at the mid ocean ridges?
The most widely recognized variety of ocean-floor metamorphism is that resulting from burial and hydrothermal alteration in the high heat-flow and geothermal regime at mid-ocean ridges. New minerals are produced that show progressive changes with depth.
What type of metamorphic setting would be associated with the Himalaya Mountains?
Metamorphic rocks present in the Himalayas include schist migmatite phyllite gneiss and amphibolite. Additionally metamorphosed forms of some sedimentary rocks occur in the region such as quartzite a metamorphosed type of sandstone slate a metamorphosed form of shale and marble a metamorphosed limestone.
What is Buchan type metamorphism?
Buchan-type metamorphism is sometimes described as high-temperature–low-pressure metamorphism and implies a higher geothermal gradient than in other regional metamorphic settings (England and Thompson 1984 De Yoreo et al. 1991). Lithological and metamorphic maps of the Buchan block and adjacent Barrovian domain.
What is a dynamic metamorphism?
What is foliated metamorphism?
What are the 5 types of metamorphism?
What is metamorphic grade quizlet?
Metamorphic grade is the degree to which a rock has undergone metamorphic change or how much a metamorphic rock differs from the parent rock. It is determined by the increase in pressure and temperature that the parent rock has undergone.
Is igneous rock metamorphic?
What is Brainly metamorphism?
Metamorphism is the change of minerals or geologic texture in pre-existing rocks without the protolith melting into liquid magma. The change occurs primarily due to heat pressure and the introduction of chemically active fluids.
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Types of Metamorphism