Since only a small area surrounding the intrusion is heated by the magma, metamorphism is restricted to the zone surrounding the intrusion, called a metamorphic or contact aureole. Outside of the contact aureole, the rocks are not affected by the intrusive event.ataclastic metamorphism occurs as a result of mechanical deformation, like when two bodies of rock slide past one another along a fault zone. Heat is generated by the friction of sliding along such a shear zone, and the rocks tend to be mechanically deformed, being crushed and pulverized, due to the shearing.
Symptoms of oral allergy syndrome include itchy mouth, scratchy throat, or swelling of the lips, mouth, tongue, and throat. Itchy ears are sometimes reported. The symptoms are usually confined to one area and do not normally progress beyond the mouth.
A dry mouth can lead to: 1  tooth decay and gum disease. 2  dry cough. 3  difficulty swallowing and chewing.  hoarse 1  voice. difficulty speaking.  swollen salivary glands (located between your jaw and 1  ears) repeated fungal infections in the mouth (oral thrush) â symptoms of which can include a coated or white tongue.