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File:Micrograph of Rockland Ash.jpg

Micrograph_of_Rockland_Ash.jpg ‎(407 × 267 pixels, file size: 98 KB, MIME type: image/jpeg)

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USGS image from http://pubs.usgs.gov/fs/2000/fs022-00/


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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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Date/TimeThumbnailDimensionsUserComment
current17:09, 29 January 2014Thumbnail for version as of 17:09, 29 January 2014407 × 267 (98 KB)Gretarsson (talk | contribs)Larger size (cropped from pdf version of usgs web site)
02:35, 2 October 2006Thumbnail for version as of 02:35, 2 October 2006200 × 120 (13 KB)Mav (talk | contribs)USGS image from http://pubs.usgs.gov/fs/2000/fs022-00/ {{PD-USGov-USGS}}

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