GEOLOGY
CRYSTALLOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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igneous
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sedimentary
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metamorphic
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all of the above
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Detailed explanation-1: -Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock.
Detailed explanation-2: -The parent rock is also called the bedrock. Soil is formed from the parent rock.
Detailed explanation-3: -Common metamorphic rocks include phyllite, schist, gneiss, quartzite and marble. Foliated Metamorphic Rocks: Some kinds of metamorphic rocks–granite gneiss and biotite schist are two examples–are strongly banded or foliated.
Detailed explanation-4: -Metamorphic rocks form from pre-existing rocks ("parent rocks") due to changes in either temperature, pressure, or volatiles within the earth, often by a combination of all three.