What do geologists call the layering seen in this photo of a metamorphic rock?
A) bedding
B) foliation
C) grain size
D) cleavage

Question

What do geologists call the layering seen in this photo of a metamorphic rock? 
A) bedding 
B) foliation 
C) grain size 
D) cleavage

Quizplus · Accepted Answer

Geologists call the layering seen in a metamorphic rock "foliation". Foliation is the result of the flattening and aligning of mineral grains under high pressure and temperature, resulting in a layered or banded appearance. Bedding refers to layering in sedimentary rocks, grain size refers to the size of individual mineral grains, and cleavage refers to the tendency of a mineral to break along specific planes due to its atomic structure.

What Do Geologists Call the Layering Seen in This Photo