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Rock metamorphism does not involve melting and cooling from melt. A rock that has melted can only become an igneous rock.
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∙ 15y ago
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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 parts of the rock cycle?
weathering,erosion,deposition,compaction and cementation,metamorphism,melting,cooling and solidification.
Why are metamorphic rocks formed by contact metamorphism usually not as dense as those formed by regional metamorphism?
Contact metamorphism does not cause profound compaction, which is the reduction in size of the spaces between mineral particles due to increases in pressure. Regional metamorphism causes compaction and possibly recrystallization, increasing the density of the rock.
What are the Three types of metamorphism?
contact metamorphism, regional metamorphism, dynamic metamorphism
What are the types of rock metamorphism?
Types of metamorphism are Contact Metamorphism Regional Metamorphism Cataclastic Metamorphism Hydrothermal Metamorphism Burial Metamorphism Shock Metamorphism (Impact Metamorphism)
What signals the end of metamorphism?
Melting
What process includes melting of a mineral?
metamorphism
What kind of the steps of the rock cycle involve heat?
Orogenesis and Metamorphism.
What are the processes involve in the formation of rocks?
Heating, pressurization, deformation, recrystallization, and metamorphism.
In which rock type are fossils usually founs?
Sedimentary, since the other two types involve extreme heat and/or metamorphism which could destroy any fossil evidence
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 may be involved with metamorphism EXCEPT?
The full question is: What may be involved with metamorphism EXCEPT A recrystalization into denser minerals B new minerals forming in the solid state C increased temperature or pressure D hydrothermal activity E melting of existing rock E melting of existing rock is not part of metamorphism
Describe two ways a rock can undergo metamorphism?
Either by melting or by deposition.
Which does NOT involve an oxidation process?
Melting Ice
What are the parts of the rock cycle?
weathering,erosion,deposition,compaction and cementation,metamorphism,melting,cooling and solidification.
How does a sedimentary rock turn into a metamorphic rock then into an igneous rock?
First, through metamorphism, then by melting and magmatism.
Are the melting point of water the dispersion of molecules?
Melting involve that intermolecular forces are weakened.
