Abstract
THREE glauconite concentrates from Proterozoic sediments of the Carpentaria region of the Northern Territory which have been dated by the potassium–argon method show that there is almost complete retention of radiogenic argon in these samples when compared with control ages by the potassium–argon and rubidium–strontium methods on micas and whole-rock samples.
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WEBB, A., MCDOUGALL, I. & COOPER, J. Retention of Radiogenic Argon in Glauconites from Proterozoic Sediments, Northern Territory, Australia. Nature 199, 270–271 (1963). https://doi.org/10.1038/199270a0
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DOI: https://doi.org/10.1038/199270a0
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