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Age of Meteorites by the A40 — K40 Method

Wasserburg, G. J. and Hayden, R. J. (1955) Age of Meteorites by the A40 — K40 Method. Physical Review, 97 (1). pp. 86-87. ISSN 0031-899X.

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The ages of two stony meteorites were determined by measuring the A40/K40 ratio using an isotopic dilution technique. With a branching ratio λe/λβ=0.085 and a decay constant λ=0.55×10^-9 yr^-1, the ages obtained were (4.82±0.20)×10^9 and (4.58±0.20)×10^9 years.

Item Type:Article
Additional Information:©1955 The American Physical Society Received 11 August 1954; revised 29 September 1954 The authors are indebted to Professor M. G. Inghram and to Professor H. C. Urey for their valuable suggestions during the progress of this work. This work was supported in part by a U.S. Atomic Energy Commission contract and in part by a National Science Foundation grant.
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Deposited On:06 Oct 2006
Last Modified:26 Dec 2012 09:04

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