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 ...

But this formation is also unlikely to cause a volcanic eruption in the park because a lot of pressure needs to build up to ...

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 area on the island of Negros around Kanlaon Volcano, one of 24 active volcanoes in the Southeast Asian nation, was still under evacuation orders from an eruption in December. There were no ...

The most recent supervolcanic eruption on Earth occurred approximately 27,000 years ago, during the Stone Age, when early humans were still fashioning tools and decorating cave walls. This ...

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.

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 ...

An eruption lasts 1 1/2 to 5 minutes ... The lobby of the hotel features a 65-foot ceiling, a massive rhyolite fireplace, and railings made of contorted lodgepole pine. Wings were added to ...