Which of the following is also known as dynamo thermal metamorphism?

Correct option is B

Explanation:

Dynamic metamorphism is also known as dynamo thermal metamorphism. It occurs due to the intense pressure and heat caused by tectonic forces, typically along fault zones. This type of metamorphism primarily results in the deformation and recrystallization of rocks due to mechanical forces.

1. Dynamic metamorphism typically occurs in shear zones, where rocks are subjected to high pressure and temperature conditions.

2. The heat involved is generated by tectonic activity such as the movement of earth's plates.

• Retrogressive metamorphism refers to the process where high-grade metamorphic rocks are subjected to lower temperatures and pressures.

• Contact metamorphism happens when rocks are heated by nearby magma or lava, typically resulting in localized changes.