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metamorphic and igneous
The two types of igneous rock are are intrusive and extrusive, depending on where they form. Intrusive igneous rock forms underground from slow cooling magma. Extrusive igneous rock forms at or near the surface from quick cooling lava.
Two processes a rock must undergo before becoming an igneous rock are melting, where the rock is heated to a point where it turns into magma, and cooling, where the magma solidifies to form an igneous rock.
The two processes in the rock cycle that must occur in order to change any rock into an igneous rock are melting (to form magma) and solidification (to form igneous rock). Melting of existing rocks due to high temperatures or pressure creates molten magma, which can then cool and solidify to form new igneous rocks.
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It is an example of extrusive igneous rock.
The two geological processes involved in changing a metamorphic rock to an igneous rock are melting and solidification. When a metamorphic rock is subjected to high temperatures, it can melt to form magma. This molten material can then rise to the surface, where it cools and solidifies, resulting in the formation of igneous rock.
Some types of igneous and sedimentary rocks can form on Earth's surface.
Igneous an Metamorphic are the two types of rock that are formed with the help of heat .
If the magma cools on the surface of the crust, it is called extrusive igneous rock, such as pumice, basalt or rhyolite. If the magma cools inside the crust, it is called intrusive igneous rock, such as granite.
Rate of cooling of the magma and Chemical composition of the magma.