File:Grand Canyon Supergroup with basalt dike in Hakatai Shale.JPG

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Grand_Canyon_Supergroup_with_basalt_dike_in_Hakatai_Shale.JPG(800 × 526 pixels, file size: 104 KB, MIME type: image/jpeg)

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Summary

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Description Grand Canyon Supergroup with basalt dike in Hakatai Shale
Source http://www.nature.nps.gov/geology/parks/grca/age/index.cfm
Author National Park Service

Licensing

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Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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Date/TimeThumbnailDimensionsUserComment
current13:13, 6 September 2009Thumbnail for version as of 13:13, 6 September 2009800 × 526 (104 KB)Mav (talk | contribs)== Summary == {{Information |Description=See file name |Source=http://www.nature.nps.gov/geology/parks/grca/age/index.cfm |Date= |Author=National Park Service |Permission= |other_versions= }} == Licensing == {{PD-USGov}} [[categ

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