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A scanning electron microscope (SEM) image of an ash particle, collected following the volcanic eruption of Mount Redoubt in Alaska on March 22, 2009. The ash was collected during the ashfall in Healy, Alaska, by Pavel Izbekov, a research associate at the Alaska Volcano Observatory, Geophysical Institute of the University of Alaska Fairbanks (UAF), on March 23, 2009.
The image was created by Izbekov and Jill Shipman, a UAF graduate student studying with Izbekov, using an ISI-50 SEM at the Advanced Instrumentation Laboratory at UAF.Image credit: Pavel Izbekov and Jill Shipman, University of Alaska Fairbanks
