Metamorphic aureole contained within a pluton, also known as a xenolith.
What is metamorphic aureole?
Metamorphic rocks are altered rocks that are buried deep within the Earth. Heat, pressure, and chemicals cause these rocks to alter (minerals). They can be put together randomly, in a banded or layered appearance, or both. The presence of an igneous intrusion nearby causes the temperature of local rocks to rise, which results in contact metamorphic aureoles.
Contact metamorphism happens next to igneous intrusions and is caused by the intrusion's high temperatures. Metamorphism is limited to the zone surrounding the intrusion, known as a metamorphic or contact aureole, because only a small portion of the area surrounding the intrusion gets heated by the magma.
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