Ask a Question
or
Create a Poll
  1. Home /
  2. Questions /
  3. Science
  4. / Physical Sciences
  5. / Space And Astronomy
  6. / The Earth

by Autumn Riley on December 29th, 2005

Autumn Riley

Question

Help answer this question below.

How old is the earth?

  • Like
  • Report
Share:
Other

Answers. Showing one answer.

  • by Erin Albrecht on January 3rd, 2006

    Erin Albrecht

    Most scientists accept the Earth to be approximately 4.5-4.6 billion years old.

    Evidence for this age comes from
    * Radiometric dating of rocks in Greenland, Australia, and the Great Lakes region of North America,
    * Radiometric dating of zircon crystals in Australian rocks,
    * Dating of moon rocks and meteorites, and
    * Measurements of lead isotopes, leading to the "model lead age."


    For more a more detailed treatment of the Earth's age, please see these websites:
    http://www2.nature.nps.gov/geology/usgsnps/gtime/ageofearth.pdf
    http://www.talkorigins.org/faqs/faq-age-of-earth.html
    http://en.wikipedia.org/wiki/Age_of_the_Earth

    Comments

    • Excellent links to reputable and reliable sites. Very helpful to list the major lines of evidence.

      xprofessor

      by xprofessor on May 15th, 2007

    • Like
    • Report

    1 comment | Post one | Permalink

Want to attach an image to your answer? Click here.

Did this answer your question? If not, then ask a new question or create a poll.

More Questions. Additional questions in this category.

You're reading How old is the earth?

Follow us on Facebook!

Related Ads

Related Questions

Professionally Researched

Answerbag

a Demand Media company