Backscattered electron image of ash erupted from Pavlof volcano, collected in Sand Point on the night of 5/18 to 5/19 by Sand Point resident Kathleen Harper. The ash is composed almost exclusively of juvenile vesicular glassy particles with few crystals.
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
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