metamorphic rock
Such rock is extrusive igneous rock.
a Obsidion rock
Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.
When molten material reaches the surface of the Earth, it can solidify into different forms depending on the speed of cooling. If it cools quickly, it forms extrusive igneous rocks like basalt. If it cools slowly underground, it forms intrusive igneous rocks like granite.
a Obsidion rock
Extrusive igneous rocks are formed from lava that cools quickly on the Earth's surface, resulting in fine-grained textures. Intrusive igneous rocks are formed from magma that cools slowly beneath the Earth's surface, resulting in coarse-grained textures.
The substance that cools beneath the earths surface when an intrusive igneous rock forms is Magma. Magma is a molten material made up of rocks and minerals.
When melted rock cools and hardens in or under the Earth's surface, it forms igneous rock. This process can happen above ground, forming volcanic rocks, or below ground, forming intrusive rocks.
No, igneous rocks can form both beneath and above the Earth's surface. Intrusive igneous rocks form beneath the surface as magma cools and solidifies underground. Extrusive igneous rocks, on the other hand, form on the Earth's surface when lava cools and solidifies quickly.
There are two known processes by which magma ceases to exist: by volcanic eruption, or by crystallization within the crust or mantle to form a pluton. In both cases the bulk of the magma eventually cools and forms igneous rocks.
Intrusive igneous rocks.
The substance that cools beneath the earths surface when an intrusive igneous rock forms is Magma. Magma is a molten material made up of rocks and minerals.