File:Pyroclastic Flow St. Helens.jpg
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Pyroclastic_Flow_St._Helens.jpg (600 × 410 pixels, file size: 174 KB, MIME type: image/jpeg)
Summary
U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:27, 4 January 2017 | | 600 × 410 (174 KB) | 127.0.0.1 (talk) | U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption. |
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