I don't really actually know I'am Jst Tweleve :)
The melting of metamorphic or igneous rock forms magma.
When magma is cooled and hardened, it is an igneous rock. That being said, there's only three left and those three are the three types of rocks. Igneous, metamorphic, and sedimentary.
Answering "What process changes igneous rocks into metamorphic types?"Igneous rocks convert into metamorphic due to extreme pressure and heat, which can come from magma/lava or the movement of tectonic plates. For example, the igneous rock basalt eventually turns into the metamorphic rock granulite.
contact
Sedimentary rock can change intometamorphic rock or into igneous rock. Metamorphic rockcan change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted minerals.
metamorphic 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.
Solids become liquids. A phase change.
magma
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.
The melting of metamorphic or igneous rock forms magma.
The metamorphic rock melts into magma then cools into igneous rock
The contact metamorphism process occurs when magma intrudes into surrounding rock, causing the adjacent rock to be heated and recrystallize into a metamorphic rock. The heat and pressure from the magma alter the mineral composition and texture of the surrounding rock, resulting in the creation of a metamorphic rock zone around the magma.
magma
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To form metamorphic rock from magma, first magma must intrude into existing rock layers. The heat and pressure generated by the magma will cause the surrounding rocks to recrystallize and change mineral composition, transforming into metamorphic rock. This process occurs deep within the Earth's crust and can take millions of years.