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Principles of Relative Dating Quiz

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1. Which principle states that in any undeformed sequence of sedimentary rocks, each layer is older than the one above it and younger than the one below it?

2. What does the principle of cross-cutting relationships indicate about an igneous intrusion compared to the rock layers it cuts through?

3. Which principle explains that layers of sediment are originally deposited horizontally under the action of gravity?

4. Which principle is used to correlate rocks of similar age in different locations by comparing the fossils they contain?

5. What does the principle of lateral continuity suggest about layers of sedimentary rock?

6. If a fossil is found in a layer of rock, and that type of fossil is known to have existed only during a specific geological time period, which principle helps in dating the rock layer?

7. What does the principle of inclusion indicate about the fragments included in a rock layer?

8. In which case would the principle of superposition not be directly applicable for determining the relative ages of rock layers?

9. According to the principle of original horizontality, which of the following scenarios suggests that the sedimentary rock layers have been disturbed after deposition?

10. Which principle would be used to determine the relative age of a fault compared to the rock layers it disrupts?