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.
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.
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.