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Challenges in Studying the Oldest Earth Crust
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Challenges in Studying the Oldest Earth Crust

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Questions and Answers

What method is used to provide the age of metamorphism?

  • Electron spin resonance
  • Fission track dating
  • Radiometric age dating (correct)
  • Thermoluminiscence

    • Which mineral ages are considered the most precise for dating purposes?

  • Metamorphic ones
  • Weathered ones
  • Minerals from sedimentary rocks
  • Fresh ones (correct)

    • What is the age of the oldest rocks found on Earth in the Northwest Territories (Canada)?

  • 10.9 billion years
  • 4.4 billion years
  • 3.96 billion years (correct)
  • 4.0 billion years

    • Which country has the oldest minerals with a radiometric age of 4.4 billion years?

    <p>Australia</p> Signup and view all the answers

    What are zircon minerals composed of?

    <p>(ZrSiO4)</p> Signup and view all the answers

    Which method of mineral dating is NOT mentioned in the text?

    <p>*C-14 dating</p> Signup and view all the answers

    What is the characteristic resolution of each radiometric age dating method mentioned?

    <p>Variable, depending on the rock type</p> Signup and view all the answers

    What are the four types of correlation mentioned in geology?

    <p>&quot;Lithocorrelation, biocorrelation, physical event correlation, and chronostratigraphy&quot;</p> Signup and view all the answers

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