First up on our list of oldest fossils ever found are the microfossils of the Nuvvuagittuq Greenstone Belt. The rock sequence ...

United States Geological Survey (USGS) scientist Mark Stelton (left) and Kenneth Sims, a UW professor of geology and geophysics and a member of the USGS Yellowstone Volcano Observatory, examine a ...

But the mafic inclusions we found were so distinct in how they looked, they became interesting from a different perspective.” The uniqueness of the inclusions Ruprecht and his team found led to a new ...

Despite Hawaii's volcano erupting continuously for a month, Guatemala's recent volcano eruption was much more deadly, with death tolls reaching 69 and growing. What is it about the two volcanoes ...

Sensors used to monitor extreme environments need to provide reliable measurements despite high temperatures and harsh conditions. Now, researchers have developed a piezoelectric sensor that works ...

The ongoing eruption of Kilauea in Hawaii has brought volcano jargon to the surface, like an effusion of mafic (that’s low-silica, oozing magma to you).

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.

But since Vesuvius has been producing mostly mafic magma since 1631, researchers believe it is unlikely that differentiated phonolite is currently accumulating.

Hawaii's Kilauea volcano has been fiercely erupting for well over a month. Now, residents are finding little green gems that have fallen out of the sky during Kilauea's eruption.

Along the eastern shore of Hudson Bay in Canada's northeastern province of Quebec, near the Inuit municipality of Inukjuak, resides a belt of volcanic rock that displays a blend of dark and light ...