In the heart of Oregon’s high desert, just south of Bend, lies a vast volcanic landscape that whispers tales of fire and ...

Beneath Yellowstone lies a magma reservoir, pulsing with molten and superheated rock and exsolved gases. Scientists have long ...

Despite the catastrophic potential, the likelihood of a Yellowstone supereruption remains very low. The United States ...

Whereas basalt magma is more liquid, rhyolite is more viscous. It doesn’t flow readily, and when it erupts, it can cause explosive eruptions. This is the type of magma that’s troubling ...

Figure 3: Eruption record between two caldera-forming eruptions in the Jemez Mountains Volcanic Field. Uncertainties plotted are 2σ. Red= fayalite-bearing rhyolite, blue= biotite-bearing rhyolite, ...

Finally, micro-scale interactions between these phases regulate an ascending magma's capability to outgas, determining the eruption's explosivity. The sample in this article presents a basalt-rhyolite ...

However, the team do not consider an eruption to be imminent ... the team determined that a type of igneous rock called rhyolite makes up Yellowstone’s magma chamber. The chamber spans ...

The Yellowstone Caldera is often referred to as the Yellowstone Supervolcano due to its colossal size; it's one of the ...

Back in 2003, a similar vent was spotted just on the other side of the same rhyolite lava flow ... an average of about 725,000 years between eruptions. 'That being the case, there is still ...

Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite ... seen between the May and July eruptions in 1980.

Lava from Hawaii's most active volcano created fountains that reached 700 feet Thursday during the latest episode of an ongoing eruption. The 14th episode ended Thursday afternoon after 28 hours.