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      Towards a radiocarbon calibration for oxygen isotope stage 3 using New Zealand kauri (Agathis australis)

      Turney, Chris S.M.; Fifield, L. Keith; Palmer, Jonathan G.; Hogg, Alan G.; Baillie, Mike G.L.; Galbraith, Rex; Ogden, John; Lorrey, Andrew; Tims, Stephen G.
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      Towards a radiocarbon calibration.pdf
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       www.uair.arizona.edu
      Citation
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      Turney, C. S. M., Fifiel, L. K., Palmer, J. G., Hogg, A. G., Baillie, M. G., L., Galbraith, R., …, Tims, S. G. (2007). Towards a radiocarbon calibration for oxygen isotope stage 3 using New Zealand kauri (Agathis australis). Radiocarbon, 49(2), 447-457.
      Permanent Research Commons link: https://hdl.handle.net/10289/3685
      Abstract
      It is well known that radiocarbon years do not directly equate to calendar time. As a result, considerable effort has been devoted to generating a decadally resolved calibration curve for the Holocene and latter part of the last termination. A calibration curve that can be unambiguously attributed to changes in atmospheric ¹⁴C content has not, however, been generated beyond 26 kyr cal BP, despite the urgent need to rigorously test climatic, environmental, and archaeological models. Here, we discuss the potential of New Zealand kauri (Agathis australis) to define the structure of the ¹⁴C calibration curve using annually resolved tree rings and thereby provide an absolute measure of atmospheric ¹⁴C. We report bidecadally sampled ¹⁴C measurements obtained from a floating 1050-yr chronology, demonstrating repeatable ¹⁴C measurements near the present limits of the dating method. The results indicate that considerable scope exists for a high-resolution ¹⁴C calibration curve back through OIS-3 using subfossil wood from this source.
      Date
      2007
      Type
      Journal Article
      Publisher
      University of Arizona, Department of Geosciences
      Rights
      This article has been published in the journal: Radiocarbon. © 2007 by the Arizona Board of Regents on behalf of the University of Arizona. Used with permission.
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      • Science and Engineering Papers [3124]
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