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.
Meighan Sembrano. An itchy lip is a swollen condition of the lips when the lips appear to be chapped and dry. Itchy lips cause bleeding, a burning sensation and a sense of irritation in your lips. It is a very common problem these days which is generally faced by people of all age groups.