Relative dating summary


  • Pencils
  • Colored Pencils
  • Drawing Paper,
  • Cardstock
  • Handouts:
    Nonsense Cards Set A ,
    Fossils Cards Set B (1) ,
    Fossils Cards Set B (2) ,
    Stratigraphic Section for Set B ,
    Fossil Map of Utah
Additional Resources Books
  • The Amazing Earth Model Book , Donald M. Silver & Patricia J. Wynne, ISBN # 0-590-93089-3
  • The Big Beast Book , Jerry Booth, ISBN #0-316-10266-0
  • Dinosaur-The story behind the scenery , Allan Hagood, ISBN # 0-916122-10-7
  • Dinosaurs of Utah and Dino Destinations , Pat Bagley and Gayle Wharton, ISBN #1566846013
  • The Dinosaur Alphabet Book , Jerry Pallotta
  • Everything You Need to Know About Science , Anne Zeman and Kate Kelly, ISBN # 0-590-49357-4
  • Eyewitness Books, Fossil , Dr. Paul D. Taylor, ISBN # 0-7566-0682-9
  • Eyewitness Books, Rocks and Minerals , Dr. Symes ISBN #0-7894-5805-5
  • The Extinct Alphabet , Jerry Pallotta, ISBN # 088106-471-8
  • The Fossil Factory , Douglas, Niles, and Gregory Eldredge, ISBN #1-57098-417-4
  • Kingfisher Young Knowledge, Rocks and Fossils , Chris Pellant ISBN, #0-7534-5619-2
  • Reader¬ís Digest, Pathfinders, Dinosaurs , Paul Willis, ISBN # 0-7944-0001-9
Videos
  • Earth Science for Children, All About Fossils
  • Eyewitness Dinosaur
  • Eyewitness Prehistoric Life
Additional Media
  • University of Utah Museum of Natural History Fossil Kit Lorie Millward

Although early stratigraphers could determine the relative order of rock units and fossils, they could only estimate the lengths of time involved by observing the rates of present geologic processes and comparing the rocks produced by those processes with those preserved in the stratigraphic record. With the development of modern radiometric dating methods in the late 1940s and 1950s, it was possible for the first time not only to measure the lengths of the eras, periods, and epochs but also to check the relative order of these geologic time units. Radiometric dating verified that the relative time scale determined by stratigraphers and paleontologists ( Figure 1 ) is absolutely correct, a result that could only have been obtained if both the relative time scale and radiometric dating methods were correct.


Relative dating summary

Relative dating summary