Posts Tagged ‘relative age’

3-14-11

Students worked with geologic block models (see 3-10-11) and determined relative ages of the rocks based on index fossils. The concept of radiometric dating was discussed in order to introduce absolute age of rocks.

3-8-11

The science of stratigraphy was introduced and three rules or laws were presented; the Law of Superposition, the Law of Original Horizontality, and the Law of Cross-Cutting Relationships. These three rules allow one to determine the relative ages of rock layers.

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