Any rock can undergo metamorphism, be it sedimentary, igneous or even the transformation of one type of metamorphic rock to another.
ANY rock can become a metamorphic rock with enough heat and/or pressure.
All rocks can undergo metamorphism; sedimentary, igneous, and even metamorphic rocks.
Regional metamorphism can occur.
That depends on the rock and the type of metamorphism is underwent. Some rocks become more dense, some become less.
They would be referred to as contact metamorphic rocks.
They classify metamorphic rocks according to their parent rock or protolith.
Contact metamorphism does not often produce the foliation caused by regional metamorphism
The most common type of land metamorphism is Regional metamorphism. The most common rocks are slates, schists, and gneisses. This occurs within the folds of mountain belts and cratonic areas.
The process is referred to as metamorphism.
All rock types can be changed through metamorphism.
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Metamorphic rocks can be identified if the rock is foliated or nonfoliated, foliating type, type of metamorphism (contact/regional), and by probable original rock. :)