Answer: regional
________ metamorphism affects the greatest volumes of rock and produces the greatest variety in metamorphic rock types.
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. The chemical components and crystal structures of the minerals making up the rock may change even though the rock remains a solid. Changes at or just beneath Earth's surface due to weathering or diagenesis are not classified as metamorphism. Metamorphism …
Metamorphic rocks are one of the three great divisions of all rock types and so there is a great variety of metamorphic rock types . In general if the protolith of a metamorphic rock can be determined the rock is described by adding the prefix meta-to the protolith rock name. For example if the protolith is known to be basalt the rock …
Metasomatism (from the Greek μετά (change) and σῶμα (body)) is the chemical alteration of a rock by hydrothermal and other fluids. It is the replacement of one rock by another of different mineralogical and chemical composition. The minerals which compose the rocks are dissolved and new mineral formations are deposited in their place.
Metamorphic rock - Wikipedia
Metamorphic rock - Wikipedia
Ultra-high-pressure metamorphism - Wikipedia
Ultra-high-pressure metamorphism refers to metamorphic processes at pressures high enough to stabilize coesite the high-pressure polymorph of SiO2. It is important because the processes that form and exhume ultra-high-pressure metamorphic rocks may strongly affect plate tectonics the composition and evolution of Earth's crust. The discovery of UHP metamorphic rocks in 1984 revolutionized our …
An orogeny is an event that leads to both structural deformation and compositional differentiation of the Earth's lithosphere (crust and uppermost mantle) at convergent plate margins. An orogen or orogenic belt develops wh...
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