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Stepped-Combustion 14C Dating of Sediment: A Comparison with Established Techniques

  • J McGeehin (a1), G S Burr (a2), A J T Jull (a2), D Reines (a2), J Gosse (a3), P T Davis (a4), D Muhs (a5) and J R Southon (a6)...

Extract

Radiocarbon dating of bulk sediment has long been used as a method of last resort when reliable wood, charcoal, or plant macrofossils are not available for analysis. Accurate dating of sediment is complicated by the presence of multiple organic carbon fractions, each with a potentially different 14C activity. Additionally, the presence of carbon bound by clay minerals can significantly reduce the accuracy of a sediment age determination, with the oldest 14C ages seen in samples with the highest clay content (Scharpenseel and Becker-Heidmann 1992).

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Copyright

Corresponding author

Corresponding author. Email: mcgeehin@usgs.gov.

References

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Abbott, MB, Stafford, TW Jr. 1996. Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada. Quaternary Research 45:300–11.
Delqué Količ, E. 1995. Direct radiocarbon dating of pottery: selective heat treatment to retrieve smoke-derived carbon. Radiocarbon 37(2):275–84.
O'Malley, JM, Kuzmin, YZ, Burr, GS, Donahue, DJ, Jull, AJT 1999. Direct radiocarbon accelerator mass spectrometric dating of the earliest pottery from the Russian Far East and Transbaikal. Proceedings 3rd International Conference on 14C and Archaeology, Lyon, France, 6–10 April 1998, Revue. Archaeometrie. Forthcoming.
Scharpenseel, HW, Becker-Heidmann, P. 1992. Twenty-five years of radiocarbon dating soils: paradigm of erring and learning. Radiocarbon 34(3):541–9.
Vogel, JS, Southon, JR, Nelson, DE, Brown, TA. 1984. Performance of catalytically condensed carbon for use in accelerator mass spectrometry. In: Wolfli, W, Polach, HA, Anderson, HH, editors. Proceedings of the 3rd International Symposium on accelerator mass spectrometry. Nuclear Instruments and Methods in Physics Research B233:289–93.

Stepped-Combustion 14C Dating of Sediment: A Comparison with Established Techniques

  • J McGeehin (a1), G S Burr (a2), A J T Jull (a2), D Reines (a2), J Gosse (a3), P T Davis (a4), D Muhs (a5) and J R Southon (a6)...

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