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QUESTION
What determines the difference between a slate and a gneiss rock that both are formed from a shale? What role does the parent rock play in determining the type of metamorphic rock that will be formed?
What determines the difference between a slate and a gneiss rock that both are formed from a shale? What role does the parent rock play in determining the type of metamorphic rock that will be formed? In a rock that had undergone contact metamorphism, would you expect to find foliation? Why or why not?
