Clay minerals within a slate are changed into mica minerals as a result of the application of heat to a rock. This is an example of
A)pressure solution.
B)recrystallization.
C)plastic deformation.
D)phase change.

Question

Quizplus · Accepted Answer

The change from clay minerals to mica minerals is a result of recrystallization, where the minerals are reorganized and their structure changes due to the application of heat. This is a common process in metamorphism, where pre-existing minerals are changed in response to increased heat and pressure. Pressure solution involves the dissolution of minerals due to pressure, plastic deformation involves the bending and deforming of rocks without causing a change in their mineral composition, and phase change involves a change in the physical state of a mineral due to changes in temperature and pressure. None of these processes would result in the transformation of clay minerals into mica minerals.

Clay Minerals Within a Slate Are Changed into Mica Minerals