The name igneous comes from the word ignis, which means "fire" in Latin. Pumice is an example of extrusive igneous rock. The word extrusive means that the magma was forced onto the earth's surface ...

Igneous rocks are the "new kids" in the rock cycle. They're the new rock on the block, ready to start fresh. Basalt lava flow in Hawaii, a perfect example of an extrusive igneous rock.

Find out how magma has created igneous rock features with this BBC Bitesize Scotland article for P5, P6, P7 - Second Level CfE ...

Rock Types: Igneous, Sedimentary, and Metamorphic Rocks Explained. Posted: March 12, 2025 | Last updated: March 12, 2025. This 1930s educational film explores the natural landscapes, geological ...

The most common intrusive igneous rock in the area is known as diabase. Diabase is considered a medium-colored igneous rock composed of plagioclase, clinopyroxene, olivine, magnetite and, ilmenite.

For example, the Phanerozoic eon is made up of, from oldest to youngest, the ... keep your eye out for coarse-grained crystalline igneous rocks —you may just be looking at a rock that formed ...

Large masses of plutonic rock—such, for example, as the granites of Devon and Cornwall—can be proved by field evidence to fill spaces that must formerly have been occupied by other rocks.