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Stromatolites.jpg (550 × 371 بكسل، حجم الملف: 103 كيلوبايت، نوع الملف: image/jpeg)
Close-up of PreCambrian stromatolites in Siyeh Formation, Going to the Sun Highway. Glacier National Park.
Source: http://www2.nature.nps.gov/geology/parks/glac/car0484.jpg from http://www2.nature.nps.gov/geology/parks/glac/
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This image or media file contains material based on a work of a National Park Service employee, created during the course of the person's official duties. As a work of the U.S. federal government, such work is in the public domain. See the NPS website and NPS copyright policy for more information. |
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