Generally speaking, how does the chemical composition of most metamorphic rocks compare to that of the parent rock?
A)Their chemical composition will be nearly the same.
B)In order to be a metamorphic rock, the chemical composition must change by 50 percent.
C)There will be a complete compositional change.
D)Knowing the chemical composition is not necessary to understand metamorphic rocks.

Question

Quizplus · Accepted Answer

The chemical composition of most metamorphic rocks will be nearly the same as that of the parent rock, with some changes due to the pressure and temperature alterations during the metamorphic process.

Generally Speaking, How Does the Chemical Composition of Most Metamorphic