Question
Regional metamorphism
Answer :
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Regional metamorphism is a type of metamorphism that affects large volumes of the Earth's crust, typically associated with mountain-building processes and tectonic plate collisions. It occurs under conditions of high pressure and temperature over extensive areas, often extending hundreds of kilometers. Unlike contact metamorphism, which is localized around igneous intrusions, regional metamorphism involves both thermal and deformational effects due to tectonic forces, resulting in widespread changes in mineralogy, texture, and structure of rocks. During regional metamorphism, pre-existing rocks such as sedimentary, igneous, or older metamorphic
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