For the first time, geoscientists detected the top of Yellowstone’s magma reservoir. It is active and dynamic, but not in danger of erupting, they found.

a type of igneous rock with notably coarse grains that produce giant crystals. “Geologists come from all over the world to ...

A QUT-led study analyzing data from NASA's Perseverance rover has uncovered compelling evidence of multiple mineral-forming ...

The lava has a thin crust on it that's caused by air cooling, so the geologist has to break this with his rock hammer before taking a sample. Lava sampling regularly happens at Kīlauea Volcano to ...

Geodes typically have a hollow or semi-hollow interior filled with minerals or crystals ... Thundereggs form within volcanic rocks known as rhyolite. As lava flows and hardens into rock, the ...