Electron microprobe chemical dating of uraninite as a reconnaissance tool for leucogranite geochronology

Abstract

We suggest that electron microprobe techniques may be employed to date Tertiary samples of uraninite (UO2), which can contain very high concentrations of radiogenic Pb after only a few million of years of U and Th decay. Although uraninite is regarded as a rare accessory mineral, it is relatively abundant in leucogranitic rocks such as those found in the… (More)

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