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)
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This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Summary
| Description |
English: 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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| Source | United States Geological Survey - http://vulcan.wr.usgs.gov/Volcanoes/MSH/Images/MSH80/framework.html#pyroclastic_flows |
| Author | Donald A. Swanson |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2008-01-22 04:50 Axcordion 600×410× (80020 bytes) {{Information |Description=U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption. |Source=United States Geological Survey - http://vulcan.wr.usgs.gov/Volcanoes/MSH/Images/MSH80/framework.
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 11:10, 20 March 2013 | 600 × 410 (174 KB) | Rémih | color balancing, contrast, saturation, removing watermark |
File usage
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