The Yellowstone Plateau Volcanic Field has some of the largest rhyolite lava flows on Earth. Have you ever wondered what ...

The Yellowstone Plateau Volcanic Field has some of the largest rhyolite lava flows on Earth. Have you ever wondered what ...

Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in eastern Idaho and west of Yellowstone National Park -- occurred concurrently with ...

Scientists in the United States have 'blown the lid off' the Yellowstone supervolcano's mysterious underground reservoir of ...

Although the USGS identified pockets of melted rhyolite rock under all of Yellowstone, channels of magma connect the northeast rhyolite melt pockets to deeper reservoirs of molten basalt.

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 the hotel in 1915 and 1927, and today there are ...

Yellowstone is America’s oldest national park ... The rest, they discovered, was made up of pores filled with molten material such as rhyolite and volatile gases (mostly water in supercritical form) ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Cole Messa and Ken Sims, from the ...