Chapter 12 Review Questions

Chapter 12 Review Questions - Chapter 12 Review Questions...

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Chapter 12 Review Questions 1. Compare numerical age and relative age. Relative age specifies whether one geologic feature is older or younger than another; numerical age provides the age of a geologic feature in years. 2. Describe the principles that allow us to determine the relative ages of geologic events. The geologic history of a region can be determined by using principles such as uniformitarianism, superposition, original horizontality, original continuity, cross-cutting relations, inclusions, and baked contacts. 3. How does the principle of fossil succession allow us to determine the relative ages of strata? The principle of fossil succession states that the assemblage of fossils in a sequence of strata changes from base to top. Once a fossil species becomes extinct, it never reappears. 4. How does unconformity develop? Unconformity is the boundary between two different rock sequences representing an interval of time during which new strata were not deposited and were eroded. 5.
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Chapter 12 Review Questions - Chapter 12 Review Questions...

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