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When igneous rock forms on the Earth's surface, including on the ocean floor, it's called extrusive. It's called intrusive rock when it forms beneath Earth's surface, such as in mines.

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Igneous rock that forms when magma hardens beneath earths surface is called?

Intrusive igneous rock


When melted rock cools or hardens on or under earths surface it forms what kind of rock?

It forms an igneous rock. If it is within the Earth, then it is an intrusive igneous rock (e.g. granite) and if it is erupted onto Earth's surface then it is an extrusive igneous rock (e.g. basalt).


When rock that forms when magma hardens beneath earths surface is called an?

Intrusive igneous rock


What is the kind of igneous rock that forms below earths surface called?

Intrusive igneous rock (plutonic rock).


What is it called when magma slowly cools far beneath the earths surface?

An igneous intrusion.


What kind of igneous rocks for on earths surface?

Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.


What are rocks that form when magma hardens beneath earths surface called?

intrusive igneous rock


When magma comes up to earths surface and hardens what is it called?

When magma comes up to Earth's surface and hardens, it is called lava.


What are igneous rocks formed at the earths surface called?

Igneous rocks formed at the Earth's surface are called extrusive igneous rocks. They form when magma cools and solidifies quickly on the Earth's surface, resulting in fine-grained or glassy textures. Examples include basalt and rhyolite.


When magma hardens and comes to the earths surface what is it called?

If the magma has hardened before being exposed at the surface it would be considered an intrusive igneous rock. It is hardens at or near the surface, it would be called extrusive igneous rock.


What type of igneous rock hardens under the surface?

The type of igneous rock that hardens under the earths surface is called the Intrusive Igneous Rock. Intrusive Igneous Rocks are of two main types, Hypabasal and Plutonic. The plutonic forms at deeper depths.


What igneous rocks formed or on or near earths surface?

Volcanoes.