Metamorphic Series

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Metamorphism is the process where rocks – igneous, sedimentary, or metamorphic –are altered by temperature and/or pressure or infiltration by chemical solutions into different rock types, such as banded gneisses. The nature of the resulting metamorphic rock is dependent upon the parent rock and the extent to which it has been recrystallized. The degree of change is reflected in a metamorphic series in which different minerals arise as the result of greater and greater degrees of metamorphic change.