Most probable answer has to be (A) .... As Kyanite is the high pressure polymorph of Al2SiO5 and it is found in high pressure metamorphic terrain. Upon upliftment there is a slight...
Answer: Kyanite to Sillimanite
Pelitic rock protolith will develop Kyanite (high pressure polymorph of Al2SiO5) as a result of high pressure Metamorphism.
As rock will uplift, th...