Contact Metamorphism

Contact metamorphism occurs when rocks are changed by intense heat from nearby hot magma or lava. This heat alters the minerals and structure of the rocks without involving significant pressure. Imagine rocks close to a molten hotspot; the heat can cause them to become denser or form new mineral patterns. This process typically creates new mineral zones and textures in the rocks, localized around the intrusive magma. Contact metamorphism is a key factor in forming certain mineral deposits and gives clues about volcanic activity and underground heat sources.