Extrusive Rocks Impressive Facts On Types Of Igneous Rocks Explained
Extrusive rocks are a type of igneous rocks.Igneous rocks are formed after a period of cooling and solidification of magma. Extrusive igneous rocks form when magma erupts from the volcano and cools down above the Earth’s surface.Magma forms deep inside the Earth’s surface near hot spots. Since Igneous rocks are formed from a volcanic eruption, they are also called volcanic rocks.When the magma erupts from the volcano, it is known as lava....