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Extrusive igneous rock such as basalt forms when lava cools at the earth's surface.

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What igneous rock are formed when lava cools at earth's surface?

Basalt is the igneous rock formed when lava cools at the Earth's surface. It is fine-grained and commonly found in ocean basins.


When lava cools at Earth's surface what type of igneous rocks are formed?

Extrusive


How and where are igneous rocks formed?

Igneous rocks are formed when molten magma cools and solidifies either beneath the Earth's surface (intrusive) or on the surface (extrusive). Intrusive igneous rocks are formed from magma that cools slowly underground, while extrusive igneous rocks are formed from lava that cools quickly on the surface.


What rock is formed when lava cools down?

When lava cools down quickly at the surface of the Earth, it forms an igneous rock called basalt. Basalt is dark in color, fine-grained, and contains minerals such as olivine and pyroxene.


What does igneous rock made of?

Igneous rocks are formed when lava cools. After a eruption, the lava cools, and the igneous rock is formed.


What happened to lava when it cools?

Extrusive igneous rock is formed from the crystallization of minerals as the lava cools.


When lava flows and cools on Earth's surface it forms what kind of rock?

Igneous rock is formed through the cooling and solidificatio of magma or lava.


Are igneous rocks formed only beneath earth's surface?

No. Intrusive igneous rocks are formed beneath the earth's surface when magma cools and extrusive igneous rocks form when lava extrudes from a volcano and cools.


What two types of igneous rock are formed as magma or lava cools?

The two types of igneous rock are extrusive, those formed from molten material at or on the surface; and intrusive, those that solidify from molten material below ground.


When or igneous rocks formed?

When lava cools and solidifies.


Lava cools down and accumulates into rock as it reaches Earth's surface?

Lava cools down and accumulates into rock as it reaches Earth's surface


Which type of rock is formed above the ground by lava?

The general type is extrusive igneous rock.