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Molten rock material below the earth's surface is called magma.lava
The molten material that reaches earth's surface is lava :)
Volcanism is the process by which molten rock material is moved from one part of the earth's crust to another, or from within the earth's crust to the surface. This molten material is called *magma* while it is still beneath the surface, but it is called *lava* as soon as it reaches the surface. All this molten rock material eventually cools and solidifies into igneous rock.
magma
The molten rock material that flows over the earth's surface is known as magma. This is what will be emitted from a volcanic eruption.
Molten rock that has been erupted onto Earth's surface is known as lava. Molten rock within the Earth is known as magma.
Magma
a molten rock
The mantle is the source of molten rock. This molten material can, if the tectonics are right, penetrate up through the solid outer mantle and the crust to deliver lava, which is molten rock (magma) that has reached the surface of the earth.
Lava
Igneous rock
magma