1. How does the principle of original horizontality help to demonstrate plate tectonics was active in the past?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Please answer all the questions !!!

1. How does the principle of original horizontality help to demonstrate plate tectonics was active in the
past?
2. How do the principles of superposition and original horizontality help to decipher the timing of
stratigraphy?
3. Describe how each of the 3 unconformities forms.
4. How can crosscutting relationships be used to determine the sequence of events for a rock unit?
5. What is the principle of lateral continuity? How does that apply at a place like the Grand Canyon?
6. What is the half-life of a radioactive isotope? (Explain the concept)
7. Why would C-14 dating be useless for determining the age of fossilized dinosaurs?
8. How do the parent and daughter concentrations change during radioactive decay over time?
9. Why is the mineral zircon so important for U-Pb dating old rocks?
10. What are the 4 Eons of Earth history- list an important event that happened during each of them?
Transcribed Image Text:1. How does the principle of original horizontality help to demonstrate plate tectonics was active in the past? 2. How do the principles of superposition and original horizontality help to decipher the timing of stratigraphy? 3. Describe how each of the 3 unconformities forms. 4. How can crosscutting relationships be used to determine the sequence of events for a rock unit? 5. What is the principle of lateral continuity? How does that apply at a place like the Grand Canyon? 6. What is the half-life of a radioactive isotope? (Explain the concept) 7. Why would C-14 dating be useless for determining the age of fossilized dinosaurs? 8. How do the parent and daughter concentrations change during radioactive decay over time? 9. Why is the mineral zircon so important for U-Pb dating old rocks? 10. What are the 4 Eons of Earth history- list an important event that happened during each of them?
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