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Illinois State Geological Survey Radiocarbon Dates IV

Published online by Cambridge University Press:  18 July 2016

Dennis D. Coleman
Dennis D. Coleman*
Affiliation:
Illinois State Geological Survey, Urbana, Illinois 61801
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This date list includes all samples processed from December 1970 through November 1971 at the Illinois State Geological Survey Radiocarbon Dating Laboratory. The benzene liquid scintillation method of Noakes, Kim, and Stipp (1965), and Noakes, Kim, and Akers (1967) was used. A new benzene synthesis system has been completed, and several changes in the sample preparation procedure have been made since the last date list report (Coleman, 1972). A brief summary of the benzene synthesis and sample pretreatment techniques used to determine the dates reported here follows.

Type
Research Article
Information
Radiocarbon , Volume 15 , Issue 1 , 1973 , pp. 75 - 85
Copyright
Copyright © The American Journal of Science 

References

Coleman, D. D., 1972, Illinois State Geological Survey radiocarbon dates III: Radiocarbon, v. 14, p. 149-154.CrossRefGoogle Scholar
Dreimanis, A., Terasmae, J., and McKenzie, G. D., 1966, The Port Talbot interstade of the Wisconsin glaciation: Canadian Jour. Earth Sci., v. 3, p. 305-325.Google Scholar
Grüger, E., 1970, The development of the vegetation of southern Illinois since late Illinoian time (preliminary report): Rév. Géog. Physique et Géol. Dynamique (2), v. 12, no. 2, p. 143-148.Google Scholar
Jacobs, A. M., 1970, Persistence of lake basins in southern Illinois, U.S.A., from late Illinoian time to the present: Rév. Géog. Physique et Géol. Dynamique (2), v. 12, no. 2, p. 137-142.Google Scholar
Kim, S. M. and Ruch, R. R., 1969, Illinois State Geological Survey radiocarbon dates I: Radiocarbon, v. 11, p. 394-395.Google Scholar
Kim, S. M., Ruch, R. R., and Kempton, J. P., 1969, Radiocarbon dating at the Illinois State Geological Survey: Illinois Geol. Survey Environmental Geol. Note 28, 19 p.Google Scholar
Lineback, J. A., Ayer, N. J., and Gross, D. L., 1970, Stratigraphy of unconsolidated sediments in the southern part of Lake Michigan: Illinois Geol. Survey Environmental Geol. Note 35, 35 p.Google Scholar
Noakes, J. E., Kim, S. M., and Akers, L. K., 1907, Recent improvements in benzene chemistry for radiocarbon dating: Geochim. et Cosmochim. Acta, v. 13 p. 1094–1096.Google Scholar
Noakes, J. E., Kim, S. M., and Stipp, J. J., 1965, Chemical and counting advances in liquid scintillation radiocarbon dating: 6th internatl. conf. radiocarbon and tritium dating Proc., Conf-650652, p. 68–98.Google Scholar
Willman, H. B., Leonard, A. B., and Frye, J. C., 1971, Farmdalian lake deposits and faunas in northern Illinois: Illinois Geol. Survey Circ. 467, 12 p.Google Scholar