At a mid-ocean spreading center, alteration of rocks by chemically active fluids causes metamorphism by replacement or substitution of ions in the pre-existing rocks.
What Is Metamorphism?
Metamorphism is the process in which a rock type is changed by some factors.
The change occurs in the, texture, chemical composition of a rock.
When these changes occurs, it brings a out change in the texture, mineralogy of the rocks.
Therefore, at mid-ocean spreading center, alteration of rocks by chemically active fluids causes metamorphism to cause a substitution of ions in the pre-existing rocks
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