answersLogoWhite

0


Best Answer

They can be formed underground or above ground. Underground, they are formed when melted rock, called magma, deep under the earth's surface is trapped in small pockets. As these pockets of magma cool slowly underground, the magma develops into igneous rocks.

Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's crust. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground.

User Avatar

Wiki User

โˆ™ 2009-06-08 10:32:36
This answer is:
User Avatar
Study guides

Earthquakes

19 cards

How often do meteorites hit Earth

The adjustments of materials that follow a major earthquake often generate smaller earthquakes called

Most earthquakes are produced by the rapid release of which kind of energy stored in rock subjected to great forces

What does an earthquake's magnitude measure

โžก๏ธ
See all cards
4.39
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
69 Reviews
More answers
User Avatar

Wiki User

โˆ™ 2013-08-17 09:24:56

Igneous rocks are formed because molten substance within the earths surface cools and solidifies inside or outside the earth crust.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why are igneous rock formed?
Write your answer...
Submit
Still have questions?
magnify glass
imp
People also asked