Regional Metamorphism

Regional metamorphism occurs when large areas of rock are subjected to high pressure and temperature over significant periods, often due to tectonic activity, like the collision of continental plates. This process transforms the original rock, or parent rock, into metamorphic rock, altering its mineral composition and texture. The changes can create features like folds and foliation, where minerals align due to stress. Common examples include schist and gneiss, which often form in mountainous regions. Unlike localized metamorphism, which affects smaller rock volumes, regional metamorphism impacts extensive geological formations, shaping the Earth's crust.