Delwedd:Iron hydroxide precipitate in stream.jpg

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English: Iron hydroxide precipitate (orange) in a Missouri stream receiving acid drainage from surface coal mining
Ffynhonnell Environmental Contaminants; Status and Trends of the Nations Biological Resources[1] (Retrieved May 5, 2005)
Awdur D. Hardesty, USGS Columbia Environmental Research Center.[2]

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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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Iron hydroxide precipitate in stream receiving acid drainage from coal mining

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cyfredol19:33, 3 Mai 2005Bawdlun y fersiwn am 19:33, 3 Mai 2005640 × 971 (335 KB)Kbh3rdIron hydroxide precipitate (orange) in a Missouri stream receiving acid drainage from surface coal mining. {{PD-USGov-USGS}}

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