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News
Tanzania’s Ol Doinyo Lengai is the only active volcano known to erupt natrocarbonatite, the coolest lava on Earth: it flows at roughly 500–590°C, against 1,100°C or more for Hawaiian basalt. Fresh flows look black or dark brown in daylight, then react with rain and atmospheric moisture until the mountainside turns chalk-white—as though someone spilled milk over the lava.
2+ day, 4+ hour ago (791+ words) Ol Doinyo Lengai’s 500–590°C carbonate lava flows black, then atmospheric moisture and rain transform its unstable minerals into pale, rapidly weathering surfaces....
Yellowstone Volcano Observatory monthly update
4+ day, 11+ hour ago (292+ words) RexburgStandardJournal.com The Absaroka volcanoes were active from about 43 to 53 million years ago and probably looked a lot like volcanoes of the Cascade Range look today. Yellowstone Caldera is famous for it's volcanic activity--perhaps even infamous (more than famous!)....
Yellowstone’s famous geysers could go quiet as the climate warms
5+ day, 14+ hour ago (1048+ words) Yellowstone's geysers depend on melting snow, so a hotter, drier climate points to fewer eruptions and more wildfire on the plateau. People plan whole trips around standing at the rail at Old Faithful, waiting for the water to go up....
Applied Sciences, Vol. 16, Pages 8893: Scaling of Gas–Melt Decoupling in Silicic Eruptions: Magma Ascent, Connected Permeability, and Atmospheric Confinement
5+ day, 14+ hour ago (461+ words) Gas escape relative to magma ascent is a primary control on degassing, yet its governing parameters are difficult to compare across eruptions and planetary environments. This study develops a reduced-order dimensionless framework for diagnosing local gas–melt separation in connected,…...
Yellowstone got its name from iron oxides in sandstone
1+ week, 3+ day ago (162+ words) Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Shaul Hurwitz, research hydrologist with the U.S. Geological Survey. Follow along with Kyle Vetter, biological technician, as surveys…...
Blame iron oxides for the yellow stones that led to Yellowstone's name
1+ week, 3+ day ago (161+ words) Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Shaul Hurwitz, research hydrologist with the U.S. Geological Survey. Follow along with Kyle Vetter, biological technician, as surveys…...
Montana State researchers reconstruct environmental history of Yellowstone’s geyser basins
1+ week, 4+ day ago (300+ words) By Diana Setterberg MSU NEWS SERVICE A study led by a Montana State University research professor reveals how climate and hydrothermal activity have shaped the vegetation, wildfire and aquatic ecosystem history of the Yellowstone Plateau over the past 15,000 years. The…...
Guest Column: Yellowstone, Redstone, Greenstone, Blueschist: What makes rocks so colorful?
1+ week, 5+ day ago (783+ words) Yellowstone National Park was named after the Yellowstone River, the major river running through the park. The river got its name from the indigenous Minnetaree (Hidatsa), who were referring to yellow sandstones along the banks of the Yellowstone River in…...
This Yellowstone Volcano Theory Completely Changes Everything
1+ week, 5+ day ago (206+ words) Yellowstone National Park in the state of Wyoming is one of the United States' ecological treasures. Composed of more than 3,500 acres of diverse landscapes, Yellowstone is famous for its mountains and geysers, as well as an inactive volcano system. "How…...
Yellowstone Has a 150-Year-Old Sonic Mystery—and Scientists Still Aren’t Sure What Causes It
2+ week, 3+ day ago (602+ words) For more than a century, visitors to America’s beloved Yellowstone National Park have reported odd, fleeting sounds that seem to center on the famous park’s largest lakes. With descriptions that range from a noise resembling the steady humming of bees…...