1 / 11

Relative Dating

Life Science Mr. P. Relative Dating. Law of Superposition. Layers of sedimentary rock are laid down in layers, with the oldest on the bottom and the newest layers on top. This happens by…. Think of it like a building.

Download Presentation

Relative Dating

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Life Science Mr. P Relative Dating

  2. Law of Superposition • Layers of sedimentary rock are laid down in layers, with the oldest on the bottom and the newest layers on top.

  3. This happens by…

  4. Think of it like a building • When building a skyscraper, you start with the foundation and build the first floor…. • Then the second…. • Then the third…. • And so on…

  5. Relative Dating • The relative age tells you how old something is compared to something else.

  6. Think of it as… • Your older brother is 25 • Your younger brother is 8 • We can say you are between 8 and 25. • It gives us an approximation based on everything around it.

  7. How it works… • Rock layers at the bottom are oldest • Rock layers at the top are younger • Anything that cuts through these layers (called intrusions) are the youngest

  8. Index fossils • Index fossils are fossils that only existed a specific point in time and can be used as a reference

  9. Lets try it…

  10. A little tougher…

  11. Its not very easy… • Just remember…the oldest layersare on the bottom and the youngest are on top.

More Related