Attēls:Rareearthoxides.jpg

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Kopsavilkums

Apraksts
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.
Avotshttp://www.ars.usda.gov/is/graphics/photos/jun05/d115-1.htm
AutorsPeggy Greb, US department of agriculture

Licence

Public domainThis 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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Datums/LaiksAttēlsIzmēriDalībnieksKomentārs
tagadējais2015. gada 25. aprīlis, plkst. 14.382015. gada 25. aprīlis, plkst. 14.38 versijas sīktēls1 200 × 780 (573 KB)Materialscientistresolution
2010. gada 1. jūnijs, plkst. 07.552010. gada 1. jūnijs, plkst. 07.55 versijas sīktēls640 × 416 (171 KB)HarDNox{{Information |Description={{en|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.<br/> [[:en:Category:lanthanid

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