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THE AGES OF SOME AFRICAN LEPIDOLITES DETERMINED FROM THE RB-87-SR-87 DECAY
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COMPARISON OF THE RB-87-]SR-87 AGES OF THE RED GRANITE OF THE BUSHVELD COMPLEX FROM MEASUREMENTS ON THE TOTAL ROCK AND SEPARATED MINERAL FRACTIONS
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PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES,
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VOLUME DIFFUSION AS A MECHANISM FOR DISCORDANT LEAD AGES
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TILTON GR, 1958, GEOL SOC AM BULL, V69, P1469, DOI 10.1130/0016-7606(1958)69[1469:AOMFTB]2.0.CO