An Introduction to Physical Science
14th Edition
ISBN: 9781305079137
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 24, Problem QM
To determine
Pick the keyword from the given list: The name given to the breaks in the rock record due to non deposition or erosion.
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3. The Duggs find the skeleton of a Zillow beast and wish to carbon date it. If the half life of Carbon-14
is 5700 years, and we measure 60% of the original carbon, how old is the Zillow beast fossil?
1. What is relative dating?
2. What is the law of superposition?
3. What is the law of original horizontally?
1. How old is a rock if the mineral biotite from the rock has 85,000 40K atoms and 15.000 40Ar
atoms? Note: 40K decays to 40Ar with half-life = 1.3 billion years.
2. Isotopic analysis of a granitic intrusion indicates that 6.25 % of the original 40K is present.
Analysis of a nearby basaltic intrusion indicates that 25 % of the original amount of 40K is
present. What is the absolute age of both the granitic intrusion and the dike? What is the
relationship between them?
I.
3. Pebbles of an igneous rock are incorporated within a conglomerate. The pebbles yield a
radiometric age of 200 million years. What can you say about age of the conglomerate based
on this data?
4. A radioactive parent isotope with 600 atoms. After the decay, 450 daughter atoms were
produced. Calculate the age of the rock if you know that the half-life of the parent isotope is
20 million years.
Chapter 24 Solutions
An Introduction to Physical Science
Ch. 24.1 - Are dinosaur footprints fossils?Ch. 24.1 - Prob. 2PQCh. 24.2 - Prob. 1PQCh. 24.2 - Prob. 2PQCh. 24.2 - Prob. 24.1CECh. 24.2 - Prob. 24.2CECh. 24.3 - Prob. 1PQCh. 24.3 - Prob. 2PQCh. 24.3 - Prob. 24.3CECh. 24.4 - Prob. 1PQ
Ch. 24.4 - Prob. 2PQCh. 24.5 - Prob. 1PQCh. 24.5 - Prob. 2PQCh. 24.5 - Prob. 24.4CECh. 24 - KEY TERMS 1. geologic time (Intro) 2. fossil...Ch. 24 - KEY TERMS 1. geologic time (Intro) 2. fossil...Ch. 24 - Prob. CMCh. 24 - Prob. DMCh. 24 - Prob. EMCh. 24 - Prob. FMCh. 24 - Prob. GMCh. 24 - Prob. HMCh. 24 - Prob. IMCh. 24 - Prob. JMCh. 24 - Prob. KMCh. 24 - Prob. LMCh. 24 - Prob. MMCh. 24 - Prob. NMCh. 24 - Prob. OMCh. 24 - Prob. PMCh. 24 - Prob. QMCh. 24 - Prob. RMCh. 24 - Prob. SMCh. 24 - Prob. TMCh. 24 - Prob. UMCh. 24 - Prob. VMCh. 24 - Prob. WMCh. 24 - Prob. XMCh. 24 - Prob. ZMCh. 24 - Prob. 1MCCh. 24 - Prob. 2MCCh. 24 - Prob. 3MCCh. 24 - What is the name for the type of fossil formed...Ch. 24 - Prob. 5MCCh. 24 - What is obtained when rocks and geologic events...Ch. 24 - Prob. 7MCCh. 24 - Prob. 8MCCh. 24 - Prob. 9MCCh. 24 - Prob. 10MCCh. 24 - If the half-life of a radioactive specimen is 100...Ch. 24 - Prob. 12MCCh. 24 - Prob. 13MCCh. 24 - Prob. 14MCCh. 24 - Prob. 15MCCh. 24 - Prob. 16MCCh. 24 - Prob. 17MCCh. 24 - Prob. 18MCCh. 24 - Prob. 19MCCh. 24 - Prob. 20MCCh. 24 - Prob. 1FIBCh. 24 - Prob. 2FIBCh. 24 - Prob. 3FIBCh. 24 - Prob. 4FIBCh. 24 - Prob. 5FIBCh. 24 - Prob. 6FIBCh. 24 - Prob. 7FIBCh. 24 - Prob. 8FIBCh. 24 - Prob. 9FIBCh. 24 - Prob. 10FIBCh. 24 - Prob. 11FIBCh. 24 - Prob. 12FIBCh. 24 - Prob. 13FIBCh. 24 - Prob. 14FIBCh. 24 - Prob. 15FIBCh. 24 - Prob. 16FIBCh. 24 - Prob. 17FIBCh. 24 - Prob. 18FIBCh. 24 - Prob. 19FIBCh. 24 - Prob. 20FIBCh. 24 - What is meant by the phrase geologic time?Ch. 24 - Why are so few fossils of worms found?Ch. 24 - Prob. 3SACh. 24 - Prob. 4SACh. 24 - Prob. 5SACh. 24 - Prob. 6SACh. 24 - Prob. 7SACh. 24 - Prob. 8SACh. 24 - How do fossils aid in oil exploration?Ch. 24 - Prob. 10SACh. 24 - How might the principle of superposition be...Ch. 24 - Prob. 12SACh. 24 - Prob. 13SACh. 24 - Prob. 14SACh. 24 - Prob. 15SACh. 24 - Prob. 16SACh. 24 - What four features characterize the best index...Ch. 24 - Prob. 18SACh. 24 - Prob. 19SACh. 24 - Prob. 20SACh. 24 - Prob. 21SACh. 24 - Prob. 22SACh. 24 - Prob. 23SACh. 24 - Prob. 24SACh. 24 - Prob. 25SACh. 24 - Prob. 26SACh. 24 - Carbon-14 dating measures the ratio of carbon-14...Ch. 24 - What are the three conditions for using an isotope...Ch. 24 - Distinguish between primordial lead and radiogenic...Ch. 24 - Prob. 30SACh. 24 - Prob. 31SACh. 24 - Prob. 32SACh. 24 - Prob. 33SACh. 24 - Prob. 34SACh. 24 - Prob. 35SACh. 24 - Prob. 36SACh. 24 - Prob. 37SACh. 24 - Prob. 38SACh. 24 - What biologic event is used by geologists to...Ch. 24 - What is the biological event that started the...Ch. 24 - Prob. 41SACh. 24 - Prob. 42SACh. 24 - Prob. 43SACh. 24 - In what period and era were the great coal-forming...Ch. 24 - About how many days on the geologic time calendar...Ch. 24 - Prob. 1VCCh. 24 - What are the strengths and weaknesses of the...Ch. 24 - Prob. 2AYKCh. 24 - Prob. 3AYKCh. 24 - Prob. 4AYKCh. 24 - Prob. 5AYKCh. 24 - Prob. 1ECh. 24 - Prob. 2ECh. 24 - Figure 24.21 Relative Dating See Exercises 3 and...Ch. 24 - Figure 24.21 Relative Dating See Exercises 3 and...Ch. 24 - Metamorphic rock shows that only 25% of its...Ch. 24 - Prob. 6ECh. 24 - Prob. 7ECh. 24 - Suppose that one species of index fossil lived...
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- What is obtained when rocks and geologic events are put into chronologic order without regard to the actual dates? (24.2) (a) absolute (numerical) geologic time (b) relative geologic time (c) a geologic formation (d) a correlation periodarrow_forwardKEY TERMS 1. geologic time (Intro) 2. fossil (24.1) 3. paleontology 4. amber 5. replacement fossil 6. mold 7. cast 8. trace fossil 9. relative geologic time (24.2) 10. principle of original horizontality 11. principle of superposition 12. principle of cross-cutting relationships 13. unconformities 14. correlation 15. index fossils 16. eons 17. eras 18. periods 19. absolute (numerical) geologic time (24.3) 20. radiometric dating 21. carbon-14 dating 22. geologic time scale (24.5) 23. Cambrian explosion 24. Great Dying 25. epochs 26. K-T event For each of the following items, fill in the number of the appropriate Key Term from the preceding list. b. _____ The most devastating extinction that has ever occurredarrow_forwardKEY TERMS 1. geologic time (Intro) 2. fossil (24.1) 3. paleontology 4. amber 5. replacement fossil 6. mold 7. cast 8. trace fossil 9. relative geologic time (24.2) 10. principle of original horizontality 11. principle of superposition 12. principle of cross-cutting relationships 13. unconformities 14. correlation 15. index fossils 16. eons 17. eras 18. periods 19. absolute (numerical) geologic time (24.3) 20. radiometric dating 21. carbon-14 dating 22. geologic time scale (24.5) 23. Cambrian explosion 24. Great Dying 25. epochs 26. K-T event For each of the following items, fill in the number of the appropriate Key Term from the preceding list. a. _____ Widespread, easily identified fossils that are typical of a particular time segment of the Earths historyarrow_forward
- What describes using organisms that were only alive during a specific time period to estimate the unknown age of items? a. Radioactive dating Selected:b. Law of superposition This answer is incorrect. c. Relative dating d. Index fossilsarrow_forwardA fossilized leaf contains 70% Of its normal amount of carbon- 14. How old is the fossil? Use 5730 yesrs as the half-life of carbon- 14.arrow_forward
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