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Riya Sen posted an Question
October 16, 2021 • 22:09 pm 30 points
  • IIT JAM
  • Geology (GG)

S6. decay of which one of the following isotopes can be used for dating archean rocks a. 1c c. 47sm b. 10be d. 210pb (iit-jam 2012)

S6. Decay of which one of the following isotopes can be used for dating Archean rocks A. 1C C. 47Sm B. 10Be D. 210Pb (IIT-JAM 2012)

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    Mayank vedwal Vedwal Best Answer

    Sm-Nd method is used for dating archean rocks because the half life of Sm-Nd is 100by and also Sm and Nd are incompatible elements which prefer melt phase and they were in sufficient amount in the bulk silicate earth before the differentiation of earth's mantle ( Archean time) .

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