Newsweek on MSN2d
Is Yellowstone's Supervolcano Due for an Eruption? Experts Have An Answer
Written by Mark Stelten, deputy scientist-in-charge at the Yellowstone Volcano Observatory, the post analyzes the v olcano's ...
National Parks Traveler4d
So, When Will The Next Eruption At Yellowstone Happen?
Geologists from the Yellowstone Volcano Observatory are often asked to estimate how likely future eruptions are at ...
Scientists update eruption history of Oregon's South Sister volcano
A hiker's pack usually gets lighter over time as they plow through trail mix and water, but Annika Dechert likes to joke that ...
ZME Science on MSN4mon
What are thundereggs? The rare, chalcedony-filled rocks
Thundereggs specifically form in rhyolitic lava. Rhyolitic lava flows are volcanic flows composed of rhyolite — a high-silica ...
PBS5y
Anatomy of a Volcano
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 ...
KTVZ23d
U of O scientists find that South Sister was more volcanically active over shorter time frame than previously thought
Rhyolite produces explosive volcanic eruptions that eject ash, rocks and gas forcefully into the air, as opposed to eruptions that feature lava slowly pouring out. It’s relatively rare in this ...
BBC13d
The UK rocks - in many ways. But do you know the rocks it's made of?
The town walls of Conwy in North Wales are the perfect place to spot a rock called rhyolite. An igneous rock, it is formed from an explosive type of lava. It can be best seen in the upper sections ...