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Such rock is extrusive igneous rock.

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

Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.


What igneous rock is melted rock that reaches earths surface and forms extrusive igneous rock when it cools?

a Obsidion rock


What is melted rock that reaches Earths surface and forms extrusive and igneous rock when it cools?

a Obsidion rock


What forms in earths crust when molten material reaches 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.


Intrusive igneous rocks form when hardens and cools beneath Earth and surface.?

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 or hardens on or under earth's surface it forms what rock?

Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.


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).


What type of rocks form when magma cools below earths surface?

Intrusive igneous rocks.


What hardens and cools beneath earth's surface when an intrusive igneous rock forms?

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.


What is the rock that cools below the earths surface?

The rock that cools below the Earth's surface is called "intrusive igneous rock." This type of rock forms when magma cools and solidifies slowly beneath the Earth's crust, allowing for the development of larger crystals. Common examples of intrusive igneous rocks include granite and diorite. In contrast, extrusive igneous rocks form from lava that cools quickly on the Earth's surface.


What happens when magma reaches the surface and cools?

it forms igneous rocks


When molten rock cools or hardens on or earth surface it forms?

Igneous