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Stratigraphic Principles

Topic
  • Earth Science
  • Earth History
  • Geology
Resource Type
  • Videos
  • Clips
Level
High School — GeneralHigh School — AP/IB
Duration
00:02:21
Favorited By
6 Users
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Description

This video provides a demonstration of two main principles in the study of rock layers: superposition and association.

Using beans and plastic figurines, archaeologist John Shea illustrates how older sediments are typically found lower in a sequence of rock layers. He also illustrates how fossils found in the same layer represent organisms that existed at around the same geologic time.

This clip is from a 2011 Holiday Lecture Series, Stones, Bones, and Genes: The Origin of Modern Humans.

Details
Key Terms

anthropology, archaeology, demonstration, fossil record, geologic time, paleontology, rock layer, sediment, stratigraphy

Terms of Use

Please see the Terms of Use for information on how this resource can be used.

Version History
Date Published 02.08.11
Materials
Large (MOV) 18 MB
Large (WMV) 18 MB
Small (MOV) 10 MB
Small (WMV) 10 MB

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