Question

difference between thermal and dynamic metamorphism​

Answer 1

Answer:

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Explanation:

It is also known as contact metamorphism it mainly occurs as a result of change in temperature in the absence of a deviatoric stress (is a measure of the stress acting to deform a rock)this is usually due to the closeness of country rocks to a body of magma.

Dynamic Metamorphism:

It is also know as cataclasis. Basically this is metamorphism that occurs by mechanical forces. It usually involves the recrystallization and fragmentation of rocks which are in narrow zones such as thrusts or faults where strong mechanical deformation has taken place.

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Answer 2

Answer:

Dynamic - When the transformation of the original rock takes place mainly because of the pressure at a great depth within the earth crust , it is known as dynamic metamorphism.

Thermal - when the transformation of the original rock takes place principally because of the influence of high temperature, the rock is said to be thermal metamorphism . For example - graphite ( from coal ) , slate from ( clay ) .

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