What is the mantle made up of melted rock called?

The mantle is primarily composed of solid rock, but it contains regions of partially melted rock known as "magma." This magma can form due to high temperatures and pressures within the Earth, leading to partial melting of the mantle's silicate minerals. When magma rises to the surface, it can lead to volcanic activity. The mantle plays a crucial role in the geological processes of the Earth, including plate tectonics.