Seismic imaging of the Yellowstone system has also identified a deeper magma body, likely composed of basalt — Earth’s most primitive magma type and the heat engine that helps to generate and sustain ...

A detailed look at Yellowstone's magma storage system finds that only one region is likely to host liquid magma in the long ...

This type of magma is called “basaltic”, and it tends to produce pretty mild eruptions. Hawaii is also a basaltic hotspot, for instance. However, hotspots can also melt the material around ...

Though the volcano’s magma chambers could hold enough material for a caldera-forming event, none of them are likely to erupt soon.

So how did the geologists come to their conclusion? First, not all magma is created equally. It is formed from different kinds of melted rock. Some contain more silica, some hold more basalt. Some is ...

Two types of magma exist under the park. One is basaltic magma, which triggers most volcanic activity on Earth. It erupts more easily because it has a lower resistance to flow, but underneath ...

Deep within the Yellowstone Caldera, the bowl-shaped rock cauldron at the heart of Yellowstone National Park, there’s a clue ...

Earth bubbles and broils beneath an underwater peak called Axial Seamount, located 480 kilometers (300 miles) off Oregon's ...