________ commonly serves as a protolith in the formation of phyllite.
A) Limestone
B) Sandstone
C) Shale
D) Basalt

Question

Quizplus · Accepted Answer

Shale is a fine-grained sedimentary rock that is commonly altered into phyllite through regional metamorphism. Limestone and sandstone typically form other types of metamorphic rocks such as marble and quartzite respectively, while basalt is a volcanic rock that is not commonly associated with the formation of phyllite.

________ Commonly Serves as a Protolith in the Formation of Phyllite