Thundereggs form through igneous processes. Igneous rocks form from the solidification of molten rock material called magma. This process can occur either below the Earth’s surface, forming ...

ISLA: Traprain Law is an unusual igneous intrusion called a laccolith. Igneous intrusions form when molten rock, or magma, from deep underground pushes up towards the Earth’s surface but cools ...

Magnesia can trap gas bubbles in the magma chamber of volcanoes because it is viscous and thick. Different minerals crystallize at different temperatures in igneous rocks. If there is a residual ...

Now, Yellowstone's magma is on the move ... "The locus of future rhyolitic [igneous rock] volcanism has shifted to north-east Yellowstone caldera," according to the team, which was led by Ninfa ...

Volcanoes offer breath-taking views and thrilling adventures. Explore Iceland’s Thrihnukagigur magma chamber, Costa Rica’s ...

Primary minerals form at elevated temperatures from cooling magma during the original solidification of rock or during metamorphism, and they are usually derived from igneous and metamorphic rocks ...

The Scripps Institution of Oceanography dredged rocks collection consists of more than 4,000 dredge hauls and related archive materials resulting from published research, donated by investigators ...

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.