In the Formation of Gneiss from Granite,distinctive Compositional Bands Form

Multiple Choice

In the formation of gneiss from granite,distinctive compositional bands form because of ________.

A) crystals migrating within the rock
B) crystals dissolving,with atoms and ions migrating and reorganizing as new crystals
C) crystals melting,with new crystals solidifying in color bands
D) chemical reactions with groundwater