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How do we know how old a fossil is ?

Asked by anjnasidana 27th January 2016, 6:11 PM
Answered by Expert


  • The process of finding out the age of a fossil is known as dating of fossils.
  • Half-life periods are calculated on the basis of the ratio of the radioactive material and its products of decay.
  • When living organisms change into fossils, their rate of radioactive C14 decay decrease slowly. In this way, the age of fossils can be determined with the help of radioactive C14.
  • Because the age of a fossil can be clearly established by the radioactive carbon dating technique, the exact period of formation of a species can also be ascertained.
  • Dating of fossils has provided an accurate determination of the age.
  • The most commonly used radioactive materials are uranium and carbon-14. Even potassium-argon is being used.
Answered by Expert 27th January 2016, 6:16 PM
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