radioactive elements.
I think it is temperature or pressure.
Magma is rock that useally comes from a volcana it melts due to the high pressure and heat
Schist
The main cause for a rock to melt and form magma is constant pressure and heat in the mantel
Magma is basicaly the same as lava, except magma is still in the volcano, when magma has come out of the volcano, it has become lava.
Radioactive elements
I think it is temperature or pressure.
Magma is rock that useally comes from a volcana it melts due to the high pressure and heat
it is dirt heat and pressure
magma and heat pressure
hot magma
Schist
sedimentary rocks
heat and pressure pushed magma out of the side vents making it ooze out and also magma shoots out of the crater.
Heat
The main cause for a rock to melt and form magma is constant pressure and heat in the mantel
Magma