Volcanos are releasing ash and smoke into the atmosphere on three continents. That might be making you think back to your elementary school science class when you probably studied volcanoes and lava.
United States Geological Survey (USGS) scientist Mark Stelton (left) and Kenneth Sims, a UW professor of geology and geophysics and a member of the USGS Yellowstone Volcano Observatory, examine a ...
On the banks of the Columbia River, tall columns of rock poke out from the cliffs. “So you see all of these black rocks that are on either side of us, on either side of the river? Those are basalts.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback