Some other examples of igneous intrusions in Scotland can be found at Dumbarton Rock (a volcanic plug in Dumbarton) and Loudoun Hill (a volcanic plug in Ayrshire). Learn more about some of the ...

With our ideas of volcanoes we always associate the grand and the terrible ; and a volcanic eruption—a huge piece of artillery, with a mouth perhaps miles in circumference, shooting up rocks and ...

a volcanic crater in the heart of the park. "The locus of future rhyolitic [igneous rock] volcanism has shifted to north-east Yellowstone caldera," according to the team, which was led by Ninfa ...