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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rahul kumar Best Answer
Marked options are correct. Answer (D) Granulite facies Granulite facies is associated with high pressure and high temperature Metamorphism. So, the most probable answer to this question should be Granulite facies. Answer (B) Open system Metasomatism is the chemical alteration of a rock by hydrothermal and other fluids. Fluids are mobile in nature so it can't represent a closed system. Role of fluids implies that metasomatism is of open system behaviour.