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Dating Fossils and Rocks Mike Riddle www.Train2Equip.com
Topics ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],The Atom Electron Nucleus
What Is Carbon? ,[object Object],[object Object],[object Object],[object Object],C 14 6 C 9 6 C 16 6 Atomic mass Atomic number
Unstable isotopes (Atoms) An atom is generally stable if the number of protons equals the number of neutrons in the nucleus 8 8 Stable Oxygen 7 7 Stable Nitrogen 6 6 Stable Carbon Neutrons Protons Atom (Isotope) Carbon 14 6 8
What is Radioactive Decay? ,[object Object],How long does this take? The nucleus of an atom (decays) changes into a new element C N 14 6 14 7
[object Object],What is Half-Life? ,[object Object]
Half-Life Illustration If C-14 is constantly decaying, will we run out of C-14 in the atmosphere? Time = 0 C-14 5,730 years 1 half-life N-14 C-14 11,460 years 2 half-lives N-14 C-14 1/2 1/2 3/4
How Carbon-14 Is Produced Cosmic Rays (radiation) Collision with atmosphere (N14) Forms C-14 C-14 combines with oxygen to form carbon dioxide (CO 2 )
Carbon-14 Life Cycle Cosmic radiation Carbon-14 is produced in the atmosphere Carbon-14 decays into Nitrogen-14 C 14 6 N 14 7 N 14 7
[object Object],[object Object],[object Object],[object Object],Review ,[object Object],Next Topics Equilibrium How the carbon clocks works
Equilibrium: The Assumption Carbon 14 being added Carbon 14 being removed The amount of C-14 in the atmosphere stays constant Amount added equals amount removed C-14 Atoms
Starting the Carbon Dating Clock ,[object Object],Organism dies No more  C-14 intake C-14 continues to decay
[object Object],[object Object],[object Object],How the Carbon Clock Works The C-14 dating method relies on measuring the amount of C-14 in the fossil Three Scenarios
[object Object],[object Object],What We Need to Know What do we need to know to determine how many half-lives have expired? A critical Detail
Understanding the Starting Point ,[object Object],[object Object],Illustration ,[object Object],We need to know the starting height of the candle We need to know the starting amount of C-14
Understanding the Starting Point If we find 1,000 C-14 atoms in a fossil, do we know how much C-14 has decayed? NO We need to know the starting amount of C-14. How is this done?
Determining the Starting Amount ,[object Object],[object Object],[object Object],Same ratio I’m alive Different ratio I’m a fossil
How the C-12 / C-14 Ratio Works Amount of stable C-12 Amount of unstable C-14 Ratio Years Dead # Half-lives 100 Trillion 100 1-T to 1 0 0 100 Trillion 50 2-T to 1 5,730 1 100 Trillion 25 4-T to 1 11,460 2 100 Trillion 12 8-T to 1 17,190 3 100 Trillion 6 16-T to 1 22,920 4 100 Trillion 3 32-T to 1 28,650 5
[object Object],[object Object],A Critical Assumption ,[object Object],[object Object],This is a key assumption
[object Object],[object Object],Dr. Willard Libby and Equilibrium Richard, Milton,  Shattering the Myths of Darwinism , 1997, p. 32.  (W. F. Libby,  Radiocarbon Dating,  1955)
[object Object],The Facts About Equilibrium Richard, Milton,  Shattering the Myths of Darwinism , 1997, p. 32.
[object Object],The Facts About Equilibrium Richard Lingenfelter, “Production of C-14 by cosmic ray neutrons”,  Review of Geophysics , 1963, p.51 . Are there any factors that can affect the amount of carbon in the atmosphere?
[object Object],[object Object],[object Object],[object Object],Factors Affecting Carbon-14 Dating Factors that would cause dates to appear older than they actually are include:
[object Object],Atmospheric Levels of Carbon What does this mean? ,[object Object],[object Object],[object Object]
The Flood and C-14 Dating ,[object Object],James Perloff,  Tornado in a Junkyard , 1999, p. 140.
Example of Dating Assumptions Find a fossil with a measured ratio of 16 trillion to 1 (C12 to C14) This means 4 half-lives have expired giving a date of about 23,000 years 8 trillion to 1 :  1 half-life instead of 4 – age 5,000 What if the ratio started at: 2 trillion to 1 :  3 half-lives instead of 4 – age 17,000
The Assumption: Equilibrium ,[object Object],Elizabeth K. Ralph and Henry M. Michael, “Twenty-five Years of Radiocarbon Dating,”  American Scientist , Sep/Oct 1974 The assumption carbon-14 dating is based upon is FALSE
[object Object],Carbon-14 and Age Coal should not contain any detectable C-14. However, coal has been found to contain C-14 Fossil woods estimated to be over 200 million years old still contain C-14 ,[object Object]
C-14 and Recent Dates ,[object Object],R. E. Taylor, “Major Revisions in the Pleistocene Age Assignments for North American human Skeletons by C-14 Accelerator Mass Spectrometry”,  American Antiquity , Vol. 50, 1985, pp. 136-140.
Carbon-14 Summary ,[object Object],[object Object],[object Object],[object Object],[object Object]
One More Thing About Age ,[object Object],[object Object],I’m Young after all ,[object Object]
Carbon-14 Dating: Conclusion  ,[object Object],[object Object],Robert E. Lee, “Radiocarbon: Ages in Error,”  Anthropological Journal of Canada , 1981, pp. 26-27. continued
[object Object],[object Object]
Radioisotope Dating Methods Dating Rocks What are they and how do they operate? What is the basic perception? How accurate are they? Are there any hidden assumptions?
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Why People Believe
Analyzing statements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],Textbooks Biology: Visualizing Life , Holt, Rinehart, Winston, 1998, p.177.
Radioactive Decay Decay Decay Uranium Lead Potassium Argon Parent  element Daughter element
[object Object],[object Object],Radioisotope Dating 238 U 234 Th 234 Pa 234 U 230 Th 206 Pb 210 Po   
Hour Glass Example
Hour Glass Example ,[object Object]
[object Object],[object Object],[object Object],Radioisotope Dating Assumptions  Were all dates taken consistent? Were the assumptions taken into account? Critical Thinking ,[object Object]
[object Object],[object Object],[object Object],Four Assumptions ,[object Object],Potassium Argon Parent Element Daughter Element
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Examples of Dating
[object Object],Examples of Dating
Basaltic rocks of Uinkaret Plateau six K-Ar model ages 0.01 to 17 million five Rb-Sr model ages 1270 to 1390 million one Rb-Sr isochron age 1340 million one Pb-Pb isochron age 2600 million Gardenas Basalt  (Precambrian) five K-Ar model ages 791 to 853 million six Rb-Sr model ages 980 to 1100 million one K-Ar isochron age 715 million one Rb-Sr isochron age 1070 million Paleozoic Precambrian
Radioisotope Dating Reliability and Consistency If the dates are never right when we know the age of the rocks, how can we be sure they are correct when we don’t know the exact date of the rocks?
[object Object],Radioisotope Dating John Morris, Ph.D. Geology,  The Geology Book , 2000, p. 52. Reliability and Consistency
Assumptions If you base your theory on a wrong assumption, all your work can be correct, but the result will be wrong.
Scientific Evidence for a Young Earth
Conflict in Dating ,[object Object],[object Object],[object Object],44,000 years 45,000 million years Wood embedded in lava flow (basalt) 69 feet deep Wood encased in basalt
Helium in the Atmosphere ,[object Object],[object Object],  238 U 234 Th 234 Pa 234 U 230 Th 206 Pb 210 Po  Helium nucleus
Helium in the Atmosphere H H H H H H H Atmosphere Not enough helium for an old earth Radioactive Decay Helium atoms
Helium in Granite ,[object Object],[object Object],[object Object],What does this mean? ,[object Object]
Evidence for a Young Earth ,[object Object],[object Object],[object Object],I’m Young after all
RATE Group RATE: Radioisotope and the Age of The Earth John Baumgardner, Ph.D. Geophysics Larry Vardiman, Ph.D. Atmospheric Physics D. Russell Humphreys, Ph.D. Physics Eugene Chaffin, Ph.D. Nuclear Physics Andrew Snelling, Ph.D. Geology Steven Austin, Ph.D. Geology Donald DeYoung, Ph.D. Physics John Morris, Ph.D. Geological Engineering Kenneth Cumming, Ph.D. Biology William Hoesch, M. S. Geology Stephen Boyd, Ph.D. Hebraic and Cognitive Studies
Evidences for a Young Earth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Who Believes in a Literal 6-Day Creation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Belief in a Young Earth ,[object Object],Keith Wanser (Ph.D. Condensed Matter Physics), Creation ex nihilo, 1999, p. 39.
Conclusion: Five Facts ,[object Object],[object Object],[object Object],[object Object],[object Object]
Psalm 118:8   It is better to trust in the Lord than to put confidence in man John 17:17 Sanctify them through thy truth: thy word is truth

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Dating Fossils And Rocks

  • 1. Dating Fossils and Rocks Mike Riddle www.Train2Equip.com
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  • 5. Unstable isotopes (Atoms) An atom is generally stable if the number of protons equals the number of neutrons in the nucleus 8 8 Stable Oxygen 7 7 Stable Nitrogen 6 6 Stable Carbon Neutrons Protons Atom (Isotope) Carbon 14 6 8
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  • 8. Half-Life Illustration If C-14 is constantly decaying, will we run out of C-14 in the atmosphere? Time = 0 C-14 5,730 years 1 half-life N-14 C-14 11,460 years 2 half-lives N-14 C-14 1/2 1/2 3/4
  • 9. How Carbon-14 Is Produced Cosmic Rays (radiation) Collision with atmosphere (N14) Forms C-14 C-14 combines with oxygen to form carbon dioxide (CO 2 )
  • 10. Carbon-14 Life Cycle Cosmic radiation Carbon-14 is produced in the atmosphere Carbon-14 decays into Nitrogen-14 C 14 6 N 14 7 N 14 7
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  • 12. Equilibrium: The Assumption Carbon 14 being added Carbon 14 being removed The amount of C-14 in the atmosphere stays constant Amount added equals amount removed C-14 Atoms
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  • 17. Understanding the Starting Point If we find 1,000 C-14 atoms in a fossil, do we know how much C-14 has decayed? NO We need to know the starting amount of C-14. How is this done?
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  • 19. How the C-12 / C-14 Ratio Works Amount of stable C-12 Amount of unstable C-14 Ratio Years Dead # Half-lives 100 Trillion 100 1-T to 1 0 0 100 Trillion 50 2-T to 1 5,730 1 100 Trillion 25 4-T to 1 11,460 2 100 Trillion 12 8-T to 1 17,190 3 100 Trillion 6 16-T to 1 22,920 4 100 Trillion 3 32-T to 1 28,650 5
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  • 27. Example of Dating Assumptions Find a fossil with a measured ratio of 16 trillion to 1 (C12 to C14) This means 4 half-lives have expired giving a date of about 23,000 years 8 trillion to 1 : 1 half-life instead of 4 – age 5,000 What if the ratio started at: 2 trillion to 1 : 3 half-lives instead of 4 – age 17,000
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  • 35. Radioisotope Dating Methods Dating Rocks What are they and how do they operate? What is the basic perception? How accurate are they? Are there any hidden assumptions?
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  • 39. Radioactive Decay Decay Decay Uranium Lead Potassium Argon Parent element Daughter element
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  • 47. Basaltic rocks of Uinkaret Plateau six K-Ar model ages 0.01 to 17 million five Rb-Sr model ages 1270 to 1390 million one Rb-Sr isochron age 1340 million one Pb-Pb isochron age 2600 million Gardenas Basalt (Precambrian) five K-Ar model ages 791 to 853 million six Rb-Sr model ages 980 to 1100 million one K-Ar isochron age 715 million one Rb-Sr isochron age 1070 million Paleozoic Precambrian
  • 48. Radioisotope Dating Reliability and Consistency If the dates are never right when we know the age of the rocks, how can we be sure they are correct when we don’t know the exact date of the rocks?
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  • 50. Assumptions If you base your theory on a wrong assumption, all your work can be correct, but the result will be wrong.
  • 51. Scientific Evidence for a Young Earth
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  • 54. Helium in the Atmosphere H H H H H H H Atmosphere Not enough helium for an old earth Radioactive Decay Helium atoms
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  • 57. RATE Group RATE: Radioisotope and the Age of The Earth John Baumgardner, Ph.D. Geophysics Larry Vardiman, Ph.D. Atmospheric Physics D. Russell Humphreys, Ph.D. Physics Eugene Chaffin, Ph.D. Nuclear Physics Andrew Snelling, Ph.D. Geology Steven Austin, Ph.D. Geology Donald DeYoung, Ph.D. Physics John Morris, Ph.D. Geological Engineering Kenneth Cumming, Ph.D. Biology William Hoesch, M. S. Geology Stephen Boyd, Ph.D. Hebraic and Cognitive Studies
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  • 62. Psalm 118:8 It is better to trust in the Lord than to put confidence in man John 17:17 Sanctify them through thy truth: thy word is truth