In a Uranium ore the ratio of U238 nuclei to Pb206 nuclei is η=2.8. Evaluate the age of the ores, assuming all the lead Pb206 to be a final decay product of the uranium series. The half life of U238 nuclei is 4.5×109 years.
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Updated on : 2022-09-05
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What this implies is that in the time since the ore was formed, 1+ηηU238 nuclei have remained undecayed. Thus