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

So it’s unlikely to erupt. Rhyolitic magma, on the other hand, is much thicker and more resistant to flow. Underneath ...

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

Using artificial seismic waves, the team determined that a type of igneous rock called rhyolite makes up Yellowstone’s magma chamber. The chamber spans an area 55 miles by 30 miles ...

What type of magma is rich in silica? More than 63% of silica is present in felsic and silicic magmas. Magmas made up of rhyolite and dacite are among them. These magmas are extremely viscous due to ...

However, hotspots can also melt the material around them, changing the composition of the lava and producing a type of molten material called rhyolite. Whereas basalt magma is more liquid ...

Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite. Such magmas are typically too viscous to move far from the vent ...

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 ...

and magma still flows to this day. According to the USGS, the new feature sits at the foot of a rhyolite lava flow about 10 feet above the marsh, which is all within a hydrothermally altered area ...