FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A metamorphic rock can turn into an igneous rock by:
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melting then cooling
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heat and pressure
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Pressure or temperature can even change previously metamorphosed rocks into new types. Metamorphic rocks are often squished, smeared out, and folded. Despite these uncomfortable conditions, metamorphic rocks do not get hot enough to melt, or they would become igneous rocks!
Detailed explanation-2: -When rock melts it is then considered igneous not metamorphic, but the rock next to the melted rock can be changed by the heat and become a metamorphic rock. The diagram above shows you where metamorphic rock (YELLOW ZONE) can be produced at a subduction zone.
Detailed explanation-3: -Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies.
There is 1 question to complete.