Magmatic evolution is the study of how magma, or molten rock, changes composition and properties as it moves through the Earth's crust and solidifies into igneous rocks. This process is driven by factors such as temperature, pressure, and the presence of different minerals and gases in the magma. Researchers in this area investigate the various stages of magmatic evolution, from the initial formation of magma to its emplacement and eventual crystallization into different types of igneous rocks. By studying magmatic evolution, scientists can gain insight into the processes that shape the Earth's crust and the formation of different rock types.