Magmatic processes refer to the geological processes that are involved in the formation and evolution of magma, which is molten rock beneath the Earth's surface. These processes include partial melting of the Earth's mantle or crust, magma ascent to the surface, formation of igneous rocks through crystallization, and various interactions with surrounding rocks and fluids. Magmatic processes play a key role in the formation of volcanic eruptions, igneous intrusions, mineral deposits, and the overall evolution of the Earth's crust. Researchers in this area study the physical and chemical properties of magmas, the mechanisms of magma generation and ascent, and the effects of magmatic processes on geological features and hazards.