Rock can melt from 600- 1200C, depending on the type of rock, but this is assuming 1atm pressure. Under the earth, there are higher pressures, increasing the melting point. So although the rock should have melted by the mantle, which is 500-4000C and at a depth 35-2900km below the surface, it is a silly putty-like plastic solid rather than a liquid. The earth only becomes liquid at a depth of 2900km in the earth's outer core, but that is made of metal, not rock, so essentially, none of it.
Geosphere
fre
artesian
Molten rock below the Earth's surface is known as magma. It can eventually erupt on the surface as lava through volcanic activity.
Molton rock that flows from a volcano onto Earths surface is
50km
Igneous rock that forms below the Earth's surface is intrusive.
Intrusive rock
below
Intrusive igneous rock (plutonic rock).
igneous
Molted rock below Earths surface is called Magma.
The inferred pressure at a depth of 3500 km below the Earth's surface is estimated to be around 1.3 million times atmospheric pressure at sea level. At such depths, the immense weight of the overlying rock layers causes this high pressure.
Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.
Geosphere
If you mean name given to molten rock then the answer is magma
i think the answer your looking for is igneous rock.....that is the type of rock you get after megma cools.....