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3 years ago

7

11. What do foliated and un-foliated mean in metamorphic rocks?

1 answer:

Olegator [25]3 years ago

6 0

They are two types of metamorphic rocks which differ on the basis of formation and appearance.

<u>Explanation</u>:

Foliated metamorphic rocks are a type of metamorphic rocks which appear like layers which is caused due to heat exposure and pressure.
They are formed due to high pressures.
Examples are phyllite, slate, schist
Non-foliated metamorphic rocks do not have such a layered appearance.
They are formed due to low pressures and also because of contact metamorphism. This is why they are mostly called as hornfels.
Examples are hornfels, marble

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