Read this Buzzle article to gain extensive information about the main features of these rocks.
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They are characteristically identified by the presence of typical mineral types or assemblages, along with particular accompanying textures.
Based on several types of mineral assemblages and the variation in the degree of temperature and pressure, metamorphic rocks are classified under different metamorphic facies.
It is considered a supercontinent in its own right because it is so big, but it is only part of the earlier supercontinents.
Over the next 200 million years many of the small pieces came together to form another large continent called Laurasia.
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