Essay
Metamorphic grade describes the intensity or degree of metamorphism.The metamorphic grade of a rock is determined mainly by the temperature and amount of recrystallization or neocrystallization to which a rock is subjected.Starting from the protolith,list the following rocks in order from low-grade to high-grade metamorphic rocks,then describe the changes seen in the suite of rocks as the grade is increased: gneiss,migmatite,phyllite,schist,shale,and slate.
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The protolith is shale,and the order fro...View Answer
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