Extreme heat.
If the metamorphic rock becomes hot enough it can melt.
If a metamorphic rock were to reach the mantle and melt, it would become magma. If that magma were then to recrystallize it would be an igneous rock.
go to school nuff said
Metamorphic rocks underground melt to become magma. When a volcano erupts, magma flows out of it. As the lava cools it hardens and becomes igneous rock.
Yes, when the metamorphic rock melts and becomes magma there is a chance that it can become a new type of rock.
A metamorphic rock is formed by the elements, minor heat, and compression. When the metamorphic rock is melted by magma, this would indicate that the metamorphic rock is under the surface of the earth. If it rises and cools again you will have an extrusive igneous rock. In a lot of cases, this is metamorphic rock on the surface under the influence of lava. This would change the composition and it would not longer be metamorphic, but rather igneous.
Metamorphic rock could become magma by collisions involving an oceanic plates. During subduction,any rock carried on the plate would return to the mantle and melt,forming magma
Metamorphic rocks become igneous rocks by melting from heat and pressure, remnants of which may cool from melt (magma) and become components of igneous rock.
magma
The melting of metamorphic or igneous rock forms magma.
The metamorphic rock melts into magma then cools into igneous rock
metamorphic rocks become molten when over millions of years of compaction they come in contact with the magma which melts the rock and if near a volcano the volcano will remove it forming a igneous rock when cool