Category:Volcanic ash

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A micrograph of volcanic ash in the Lassen volcanic area in Northern California - Image by The U.S. Geological Survey (USGS)

Bits of pulverized rock and glass created by volcanic eruptions

Media in category "Volcanic ash"

This category contains only the following file.

Volcanic Ash USGS Micrograph of Rockland Ash.jpg 200 × 120; 13 KB

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Volcanoes