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Grand Canyon (Ariz.)
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Earth Revealed
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1.

Earth's Structures [electronic resource]

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A visit to the Grand Canyon lays the foundation for this exploration of rock layers and deformation. Topics include sedimentation, major structures, the methods used to examine them, and how petroleum may be trapped inside rock layers. The program also looks at tectonic force and the different types of stress involved in the formation of geologic structures.
Online
1992
2.

Sedimentary Rocks [electronic resource]: The Key to Past Environments

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Returns to the Grand Canyon where exposed layers of sedimentary rock allow scientists to peer into the geologic past. The movement of sediment and its deposition are covered, and the processes of lithification, compaction, and cementation that produce sedimentary rocks are explained. Organic components of rock are also discussed.
Online
1992