Wasserburg, G. J. and Hayden, R. J. (1955) A⁴⁰-K⁴⁰ dating. Geochimica et Cosmochimica Acta, 7 (1-2). pp. 51-60. ISSN 0016-7037. doi:10.1016/0016-7037(55)90045-4. https://resolver.caltech.edu/CaltechAUTHORS:20221111-678968900.3
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Abstract
The A⁴⁰/K⁴⁰ ratios and the Pb-U ages of various co-existing potassium feldspars and uraninites were determined. It was found that with a branching ratio λeλβ = 0.085 ± 0.005 and a decay constant λ = 0.55 x 10⁻⁹, the A⁴⁰/K⁴⁰ ages could be brought into agreement with the Pb-U ages for samples ranging from 260 to 1860 m.y. Ko evidence was found for the loss of argon by diffusion from potassium feldspars.
| Item Type: | Article | ||||||
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| Alternate Title: | A40-K40 dating | ||||||
| Additional Information: | Thia work was supported in part by AEC contract number AT(11-1)-101 and in part by National Science Foundation grant number G-208. | ||||||
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| Issue or Number: | 1-2 | ||||||
| DOI: | 10.1016/0016-7037(55)90045-4 | ||||||
| Record Number: | CaltechAUTHORS:20221111-678968900.3 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20221111-678968900.3 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 117837 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 17 Nov 2022 22:55 | ||||||
| Last Modified: | 17 Nov 2022 22:55 |
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