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File:USGS Stratigraphy.gif

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English: Strata and corresponding geological time period
Strata of South West of USA. Grand Canyon National Park, Zion National Park, Canyonlands National Park, Mesa Verde National Park, Bryce Canyon National Park. Time period “Tertiary” is no longer an official term.
日本語: 地層と対応する地質時代
Author USGS (United States Geological Survey)


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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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current01:59, 7 December 2012Thumbnail for version as of 01:59, 7 December 2012800 × 572 (159 KB)Masaqui (talk | contribs)User created page with UploadWizard
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