Though volcanologists study all types of volcanoes, the latter kind is of greatest ... friction and heat to create magma from melted rock. This magma surges through the surface of the earth ...

Volcanic rock is formed when lava or magma cools down and becomes a solid. We call this type of rock igneous rock. Here are three different types of igneous rock from the Museum’s collection.

which means a really massive volcano that has a huge explosive force. ISLA: Oh this is the Scottish Parliament. Look at this wall Connor - it includes the three different types of rock ...

It could be from a volcano that last erupted 3.5 billion ... which is why we really don’t see that type of rock on other planets,” said Professor Stephen M. Elardo, NASA Early Career Fellow ...

This is the 10th episode of eruptive activity from Kilauea since Dec. 23, the Hawaiian Volcano Observatory said.

"The passengers are solid chunks of wall rocks that carry a wealth of details on conditions far beneath the surface of our planet over time." Kimberlite is a diamond-bearing volcanic rock ...

The Kilauea volcano on Hawaii’s Big Island sprang to life yet again this week with a Tuesday morning eruption that shot lava more than 300 feet in the air. The latest incident started at about 10:16 a ...