Abstract
THE potentialities of radioactive methods of determining the ages of rocks, minerals and meteorites are so great that much time, money and effort have been expended in age research during the past decade. The supplement to the chemical method of the more elegant physical method of lead age determination from isotopic abundances has done much to establish confidence in the lead time–scale; but more hope has been held for the helium method because of its promised application to a great variety of geological materials rather than to a limited group of rare minerals.
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References
Keevil, N. B., Amer. J. Sci., 36, 406–16 (1938); see NATURE, 143, 32 (1939).
Hurley, P. M., and Goodman, C., Bull. Geol. Soc. Amer., 52, 545–60 (1941).
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KEEVIL, N. THE HELIUM METHOD FOR DETERMINING THE AGE OF ROCKS. Nature 148, 445–446 (1941). https://doi.org/10.1038/148445a0
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DOI: https://doi.org/10.1038/148445a0
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