How does contact metamorphism help indicate the relative age of an intrusive event?

Contact metamorphism is a static thermal metamorphism in the vicinity of hot intrusive igneous bodies, and metamorphic rock is formed within the zone of contact metamorphism—contact aureole.

Explanation:

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.