the heat put so much pressure on the rocks that it gets so hot to change colour
All the three existing rock families/types/classes (ie, igneous, sedimentary and metamorphic rocks) can form magma, if they become hot enough to melt and change to molten form.
If gold gets hot enough, it will melt. What type of change is this?
asthenosphere
Metamorphic rocks form when rocks change after undergoing extreme pressure or temperature increase. These temperature changes must be hot enough to reorganize matter within the rock but not hot enough to melt it.
Felsic rocks have a lower melting point than mafic rocks and felsic magma has a lower temperature. In other words, felsic magma is not hot enough to melt mafic rock while mafic magma is hot enough to melt felsic rock.
somewhere very hot (ex. a volcano) or the ocean
when rocks become hot enough, and pressure and other condition are right they can melt.
when rocks become hot enough, and pressure and other condition are right they can melt.
magma
Volcanic rocks are hot if they are freshly erupted. Otherwise, no.
Lava is molten rock and could melt through thin layers of rock if given enough time before cooling.
Igneous rocks-after having the chance to cool down after a melt (metamorphic rocks need pressure as well)