Which agent of metamorphism was primarily responsible for generating the rock in the image above?
A)Heat
B)Directed pressure
C)Confining pressure
D)Partial melting

Question

Which agent of metamorphism was primarily responsible for generating the rock in the image above?
A)Heat 
B)Directed pressure 
C)Confining pressure 
D)Partial melting

Quizplus · Accepted Answer

The image appears to be a metamorphic rock that has undergone recrystallization due to an increase in heat. This is supported by the presence of mainly equidimensional grains and absence of any preferred orientation of minerals, which would have indicated the influence of directed pressure. Confining pressure and partial melting are not applicable to the observed characteristics of the rock.

Which Agent of Metamorphism Was Primarily Responsible for Generating the Rock