Correlation of Rock Layers
Discusses the various methods used to correlate rock layers. These include volcanic ash, similar fossils, and index fossils.
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Folds, Faults and Intrusions
Relative ages of various rock layers based on positioning and presence of folds, faults and intrusions.
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Geologic Time
Subdivisions of geologic time and some key events that occurred.
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Radioactive Decay
Properties of radioactive materials that make them useful for dating objects and half-life of different materials.
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Earths History I
Significance of fossils, volcanic ash, folds, faults and radioactive materials in the dating of geologic events.
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Earths History II
Significance of fossils, volcanic ash, folds, faults and radioactive materials in the dating of geologic events.
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Geologic Time and Dating
Dating items relatively and absolutely in relation to the geologic history of an area.
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