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.
If you suffer from hay fever and youâve ever experienced an itchy mouth or scratchy throat after eating certain raw fruits or vegetables and some tree nuts, you may have oral allergy syndrome symptoms.
A skin condition that is limited to the hands and/or feet can have several possible causes. Many of these conditions on the hands or feet are itchy, but, in some people, they may not itch at all. If the condition starts suddenly for the first time and is associated with painful sores on the hands, feet, and mouth, consider hand, foot, and mouth disease.