Handout

National Museum of Natural History: Paleobiology: Absolute Dating

Curated by ACT

An explanation of radiometric or absolute dating of geological formations based on using the half-life of radioactive elements to figure out how old given rock layers are. A link on the left provides information about relative dating as well.

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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional
  • This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information