Krypton isotopes in neutron-irradia ted minerals: use in evaluating samples for 87Rb/87Sr dating.
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Abstract
During fast-neutron irradiation in preparation for 40Ar - 39Ar age determination studies, krypton isotopes are formed from rubidium and strontium present in natural silicate minerals. Measurement of the 84Kr/86Kr ratio in irradiated samples admits the determination of their Sr/Rb ratio which is a parameter essential in evaluating the minerals for possible Rb-Sr studies. Interferences from other naturally occurring elements are evaluated and appear to be negligible.
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Mitchell, J. G. (1983). Krypton isotopes in neutron-irradia ted minerals: use in evaluating samples for 87Rb/87Sr dating. Geofisica Internacional, 22(2), 137–144. https://doi.org/10.22201/igeof.00167169p.1983.22.2.875
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