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Graphical Representation of Geologic Time
http://serc.carleton.edu/redirect.php?r=http://pubs.usgs.gov/gip/geotime/time.ht ...
From Cutting Edge
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This spiral graph visualization, which includes both marine and terrestrial components, represents 4.5 billion years of geologic time. Stratigraphy, paleontology, and geochronology study results provide evidence in support of this old earth. This graphical representation is from an article called Age of the Earth.
Intended for grade levels:
  • Informal
  • General public
Type of resource:
  • Visual:
    • Illustration - scientific
Subject:
  • Geological Sciences:
    • Geologic time
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
USGS-authored or produced data and information are in the public domain. While the content of most USGS web pages is in the public domain, not all the information on our site is in the public domain. Some images/graphics are used by USGS with permission. For other uses, you may need to obtain permission from the copyright holder under the copyright law.
DLESE Catalog ID: SERC-NAGT-000-000-000-843
Resource contact / Creator / Publisher:
Contact: Kathie Watson
United States Geological Survey