Magma is a mixture of molten rock, crystals, and gases found inside the Earth.
It is the material from which many igneous rocks and volcanic processes originate.
Magma contains molten rock, mineral crystals, and dissolved gases (carbon dioxide and sulfur dioxide).
Magma is generated primarily in the upper mantle and the deep crust when certain rocks partially melt due to rising temperatures, decreasing pressure, and the incorporation of water or fluids.