Archiu:Rareearthoxides.jpg
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Summary
| Description |
English: These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium. |
| Source | http://www.ars.usda.gov/is/graphics/photos/jun05/d115-1.htm |
| Author | Peggy Greb, US department of agriculture |
Licensing
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This image is in the public domain because it contains materials that originally came from the Agricultural Research Service, the research agency of the United States Department of Agriculture.
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2009-06-27 10:49 Materialscientist 640×416× (175375 bytes) {{Information |Description = These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium. |Source = http://ww
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| Data/Hora | Miniatura | Dimensions | Usuari | Descripció | |
|---|---|---|---|---|---|
| actual | 11:38 25 abr 2015 | | 1200 × 780 (573 kB) | wikimediacommons>Materialscientist | resolution |
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