___is the result of dynamic metamorphism of Granite
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Answer:
granite, by metamorphism during rock flowage, may become a mica schist or mica gneiss. Mica is increased at the expense of the feldspar and some of the ferromagnesian minerals.
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Answer:
Metamorphism is the transformation of existing rock (the protolith) to the rock with the different mineral composition or texture. Metamorphism takes place at temperatures in excess of 150 to 200 °C (300 to 400 °F), and often also at elevated pressure or in presence of chemically active fluids, but rock remains mostly solid during transformation. Metamorphism is distinct from weathering or diagenesis, which are most changes that take place at or just beneath Earth's surface.
Various forms of metamorphism exist, contact, hydrothermal, shock, and dynamic metamorphism. These differ in characteristic temperatures, pressures, and rate at which take place and in the extent to which reactive fluids are involved. Metamorphism occurring at increasing speed, pressure and temperature conditions is known as prograde metamorphism, while decreasing temperature and the pressure characterize retrograde metamorphism.
Metamorphic petrology is study of metamorphism. Metamorphic petrologists rely heavily on the statistical mechanics and experimental petrology to understand the metamorphic processes.
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