In the Formation of Gneiss from Granite,the Distinctive Compositional Bands

question 46

Multiple Choice

In the formation of gneiss from granite,the distinctive compositional bands form due to ____________.

• A) crystals migrating within the rock
• B) crystals dissolving, and atoms and ions migrating and reorganizing as new crystals
• C) crystals melting, with new crystals solidifying in color bands
• D) the bizarre and seemingly unknowable nature of the blueschist metamorphic facies

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