low magnification photo shows ash particles
Detailed Description
Volcanic ash from an eruption at the summit of Kīlauea on May 17, 2018. Left: This low magnification photo shows ash particles ranging from a few microns to a couple millimeters in diameter. Right: A high-powered scanning electron microscope reveals great detail on this basalt ash shard.
Sources/Usage
Photos courtesy of Pavel Izbekov, UAF-GI AVO