Search results for "Age values"

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Spectrochemical Rubidium-Strontium Method for Geological Age Determination

1960

The age values of lepidolites from South Africa and from Varutrask as well as that of a microcline from Varutrask have been determined and are discussed in connection with determination according to the potassium-argon method, applied to the same materials A method is suggested which allows the spectrochemical determination of Rb and Sr with sufficient accuracy. The isotopic composition is determined by means of a Fabry-Perot etalon and hollow-cathode excitation, investigating the hyper-fine structure of the Sr line at 4078 A.

StrontiumMicrocline010401 analytical chemistryAnalytical chemistrychemistry.chemical_elementMineralogyengineering.material01 natural sciencesIsotopic composition0104 chemical sciencesRubidium010309 opticschemistryAge values0103 physical sciencesengineeringInstrumentationSpectroscopyFabry–Pérot interferometerApplied Spectroscopy

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