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Lamont Radiocarbon Measurements VI

Published online by Cambridge University Press:  18 July 2016

Wallace S. Broecker
Affiliation:
Lamont Geological Observatory (Columbia University), Palisades, New York
Edwin A. Olson
Affiliation:
Lamont Geological Observatory (Columbia University), Palisades, New York
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In contrast to previous radiocarbon measurement lists, this list contains only known-age samples, most of which formed during the past ten years. The measurements were made largely in order to gain an understanding of the distribution of radiocarbon within the dynamic carbon reservoir both today and at times in the past. Since all materials forming in this reservoir today do not have the same C14/C12 ratio, such an understanding is necessary in order to arrive at the most accurate possible estimate of the age of samples submitted for dating. This is particularly important when high accuracy (i.e., <100 years error) is required on subaerially grown samples and also when attempting to extend the method to samples which formed in reservoirs other than the atmosphere (for example, the ocean and freshwater systems).

Type
Research Article
Copyright
Copyright © The American Journal of Science 

References

Arnold, J. R., and Anderson, E. C., 1957, The distribution of C14 in nature: Tellus, v. 9, p. 2832.CrossRefGoogle Scholar
Arnold, J. R., and Libby, W. F., 1949, Age determinations by radiocarbon content: Checks with samples of known age: Science, v. 110, no. 2869, p. 678680.CrossRefGoogle ScholarPubMed
Broecker, W. S., Ewing, Maurice, Heezen, B. C., Gerard, R., and Kulp, J. L., 1958, The significance of variations of light isotope abundances in oceanographic studies: p. 118134, in Cosmological and geological implications of isotope ratio variations: Nat. Acad. Sci.-Nat. Research Council Pub. 572; Comm. on Nuclear Sci., Subcomm. on Nuclear Geophysics, Nuclear Sci. Ser., Rept. 23, vii, 187 p.Google Scholar
Broecker, W. S., and Orr, P. C., 1958, Radiocarbon chronology of Lake Lahontan and Lake Bonneville: Geol. Soc. America Bull., v. 69, p. 10091032.CrossRefGoogle Scholar
Broecker, W. S., Olson, E. A., and Bird, Junius, in press, Radiocarbon measurements on samples of known age: Nature.Google Scholar
Broecker, W. S., Tucek, C. S., and Olson, E. A., in press, Radiocarbon analysis of oceanic CO2: Internat. Jour. Applied Radiation and Isotopes.Google Scholar
Broecker, W. S., and Walton, A., 1959, The geochemistry of C14 in the fresh water systems; Geochim. et Cosmochim. Acta.CrossRefGoogle Scholar
Broecker, W. S., and Walton, A. in press, Radiocarbon from nuclear tests: Science.Google Scholar
Carr, D. R., and Kulp, J. L., 1954. Dating with natural radioactive carbon: New York Acad. Sci. Trans., ser. 2, v. 16, p. 175181.CrossRefGoogle Scholar
Craig, Harmon, 1953, The geochemistry of the stable carbon isotopes: Geochim. et Cosmochim. Acta, v. 3, p. 5392.CrossRefGoogle Scholar
Craig, Harmon 1957a, The natural distribution of radiocarbon and the exchange time of carbon dioxide between atmosphere and sea: Tellus, v. 9, p. 117.CrossRefGoogle Scholar
Craig, Harmon 1957b, Isotopic standards for carbon and oxygen and correction factors for mass-speetrometric analysis of carbon dioxide: Geochim. et Cosmochim. Acta, v. 12, p. 133149.CrossRefGoogle Scholar
Deevey, E. S. Jr., Gross, M. S., Hutchinson, G. E., and Kraybill, H. L., 1954, The natural C14 content of materials from hard-water lakes: Nat. Acad. Sci. Proc., v. 40, p. 285288.CrossRefGoogle Scholar
Fergusson, G. J., 1955, Radiocarbon dating system: Nucleonics, v. 13, no. 1 (January), p. 1823.Google Scholar
Münnich, K. O., and Vogel, J. C., 1958, Dutch Atomexplosionen erzeugter Radiokohlenstoff in der Atmosphäre: Naturwissenschafen, v. 45, p. 327329.CrossRefGoogle Scholar
Rafter, T. A., 1955, 14C variations in nature and the effect on radiocarbon dating: New Zealand Jour. Sci. and Technology, sec. B, v. 37, p. 2038.Google Scholar
Rafter, T. A., and Fergusson, G. J., 1957, The atom bomb effect. Recent increase in the 14C content of the atmosphere, biosphere, and surface waters of the ocean: New Zealand Jour. Sci. and Technology, sec. B, v. 38, p. 871883.Google Scholar
Revelle, Roger, and Suess, H. E., 1957, Carbon dioxide exchange between atmosphere and ocean and the question of an increase of atmospheric CO2 during the past decades: Tellus, v. 9, p. 1827.CrossRefGoogle Scholar
Suess, H. E., 1955, Radiocarbon concentration in modern wood: Science, v. 122, p. 415417.CrossRefGoogle Scholar
Vries, Hl. de, 1958, Atom bomb effect: The natural activity of radiocarbon in plants, shells, and snails in the past 4 years: Science, v. 128, p. 250.CrossRefGoogle Scholar
Vries, Hl. de, 1958, Atomic bomb effect: Variation of radiocarbon in plants, shells, and snails in the past 4 years: Science, v. 128, p. 250251.CrossRefGoogle ScholarPubMed
Vries, Hl. de, and Barendsen, G. W., 1953, Radiocarbon dating by a proportional counter filled with carbon dioxide: Physica, v. 19, p. 9871003.CrossRefGoogle Scholar
Worthington, L. V., 1954, A preliminary note on the time scale on North Atlantic circulation: Deep-Sea Research, v. 1, p. 244251.Google Scholar