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Please explain your steps. Consider the natural radioactive series (4n+2) and (4n+3), abbreviated as follows: 238U235U206Pb+8+6+27MeV207Pb+7+4+45MeV Since both series are unique and in secular equilibrium,

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Consider the natural radioactive series (4n+2) and (4n+3), abbreviated as follows: 238U235U206Pb+8+6+27MeV207Pb+7+4+45MeV Since both series are unique and in secular equilibrium, we can assume that 206Pb forms directly from 238U and 207Pb from 235U. The isotopic ratio [206Pb/207Pb] can be used to date some rocks, since it can be related to the ratio [235U/238U]. Find this relationship and from it, deduce the age t of the rock

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