a Obsidion rock
If it finds its way dowm into the earths crust through rock cycle and then is melted and mixes together to form molten magma, it could re-erupt to the earths surface and form an extrusive igneous rock or cool and solidify within the earths crust as an intrusive igneous rock.
igneous rocks form within earths surface
Intrusive igneous rock (plutonic rock).
igneous
No igneous is formed from deep in the earth its starts from magma and as it pushes towards the earths surface it starts to cool therefore forming an igneous rock.
a Obsidion rock
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
extrusive igneous rock.
extrusive because it forms on or near earths surface
Extrusive igneous rock.
extrusive- when melted rock material coools on earths surface instursive-when the melt cools below earths surface
Extrusive rocks are formed outside of earths surface. Intrusive rocks are formed inside earths surface.
Such rock is extrusive igneous rock.
Extrusive (volcanic) and exposed plutonic igneous rock.
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.
Igneous rock that forms below the Earth's surface is intrusive.
Intrusive igneous rock