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Extrusive igneous rocks form when magma erupts as lava above Earth's surface. The resulting lava cools rapidly on Earth's surface. As a result, minerals do not have time to form. An example of an extrusive igneous rock is pumice.

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Q: How do extusive igneous rocks form?
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What is extusive igneous rock?

They are called extrusive rocks. Extrusive igneous rocks are formed on the earth's surface by the cooling of magma or lava. Intrusive igneous rocks are also made of the cooling of magma or lava, but it cools inside the earth. I hope this is the information you were looking for.


What are igneous rocks that form over the surface?

Rhyolititcen rocks.


Igneous rocks that form when magma cools on Earths's surface are called what igneous rocks?

Extrusive igneous rocks.


What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?

Igneous rocks are formed by the solidification of molten materials.


What rocks form as melted rocks?

igneous

Related questions

What is extusive igneous rock?

They are called extrusive rocks. Extrusive igneous rocks are formed on the earth's surface by the cooling of magma or lava. Intrusive igneous rocks are also made of the cooling of magma or lava, but it cools inside the earth. I hope this is the information you were looking for.


When molten rocks cools what rocks form?

igneous rocks


Can metamorphic rocks form form igneous but not from sedimentary rocks?

Metamorphic rocks can form from both igneous and sedimentary rocks


Can Metamorphic rocks can form from igneous but not from sedimentary rocks.?

Metamorphic rocks can form from both igneous and sedimentary rocks


Can metamorphic rocks can form from igneous but not from sedimentary rocks?

Metamorphic rocks can form from both igneous and sedimentary rocks


What are igneous rocks that form on earth surface?

igneous rocks that form on earth's surface


What are igneous rocks that form over the surface?

Rhyolititcen rocks.


Which igneous rocks form below earth's surface?

Intrusive igneous rocks form from cooled magma below Earth's surface.


Does sedimentary rock form igneous rock?

Yes it can form an igneous rocks as because of pressure it may melt and form into igneous rocks.


Igneous rocks that form when magma cools on Earths's surface are called what igneous rocks?

Extrusive igneous rocks.


What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?

Igneous rocks are formed by the solidification of molten materials.


What rocks form from melted rocks?

Igneous rocks.