The ashes of Mt. St. Helens

The massive eruption of Mt. St. Helens 35 years ago is one of the largest ever seen in North America. LMU volcanologists now report a retrospective analysis of salts leached from the ash deposited by the volcano on that occasion.

Yellowstone supereruption would send ash across North America

In the unlikely event of a volcanic supereruption at Yellowstone National Park, the northern Rocky Mountains would be blanketed in meters of ash, and millimeters would be deposited as far away as New York City, Los Angeles ...

Understanding the planets through volcanoes

Billions of years ago, volcanoes sent material from inside planetary bodies to the surface. Subsequent impacts have covered those original deposits. Jennifer Whitten, who receives her Ph.D. in geological sciences this year, ...

Simulating flow from volcanoes and oil spills

Some time around 37,000 BCE a massive volcano erupted in the Campanian region of Italy, blanketing much of Europe with ash, stunting plant growth and possibly dooming the Neanderthals. While our prehistoric relatives had ...

Rangitoto research prompts rethink of Auckland volcanoes

(Phys.org) —University of Auckland scientists have discovered that Rangitoto erupted not once or twice as previously believed, but multiple times over a period of 1,000 years, prompting a rethink of how Auckland volcanoes ...

Solution to ancient rock puzzle posited

A superplume, or massive episode of volcanic eruptions that related to extensive melting of the Earth's mantle, could explain the puzzling reappearance of major iron formations long after the rise in atmospheric oxygen about ...

Predicting the impact of an Auckland eruption

Rangitoto, Mt Albert, Lake Pupuke, Orakei Basin, Mt Eden and One Tree Hill are some of Auckland's most familiar landmarks. But they are also reminders of the city's fiery history and the looming threat of future disasters.

New volcanos found in Victoria

Geologists have discovered three previously unrecorded volcanoes in volcanically active southeast Australia.

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