Pyroclastic_Flow_St._Helens.jpg
Summary
Description Pyroclastic Flow St. Helens.jpg |
English:
U.S. Geological Survey scientist examines pumice blocks at the edge of a pyroclastic flow from the May 18, 1980 eruption.
|
Date | |
Source | United States Geological Survey - http://vulcan.wr.usgs.gov/Volcanoes/MSH/Images/MSH80/framework.html#pyroclastic_flows |
Author | Donald A. Swanson |
Licensing
Public domain Public domain false false |
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.