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Extrusive rocks are formed outside of earths surface. Intrusive rocks are formed inside earths surface.
Magma, or pyroclastic flow.
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.
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Intrusive igneous rocks
Intrusive igneous rock
Intrusive
Intrusive igneous rock
Intrusive igneous rock (plutonic rock).
Intrusive
intrusive igneous rock
Extrusive rocks are formed outside of earths surface. Intrusive rocks are formed inside earths surface.
Igneous rocks that form below the Earth's surface are called intrusive igneous rocks. They crystallize when magma enters an underground chamber and cools very slowly.
Magma, or pyroclastic flow.
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.
Intrusive igneous rocks.
Intrusive igneous rock