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Sagot :
Answer:
The mineral composition of the parent rock.
The temperature at which metamorphism takes place.
The amount and type of pressure during metamorphism.
The types of fluids (mostly water) that are present during metamorphism.
The amount of time available for metamorphism.
Answer:
A metamorphic rock used to be some other type of rock, but it was changed inside the Earth to become a new type of rock. The word metamorphism comes from ancient Greek words for “change” (meta) and “form” (morph). The type of rock that a metamorphic rock used to be, prior to metamorphism, is called the protolith. During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Metamorphism can be caused by burial, tectonic stress, heating by magma, or alteration by fluids. At advanced stages of metamorphism, it is common for a metamorphic rock to develop such a different set of minerals and such a thoroughly changed texture that it is difficult to recognize what the protolith was.
Explanation:
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