Radiocarbon Age Calibration of Marine Samples Back to 9000 Cal Yr BP

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Description

<jats:p>Calibration curves spanning several millennia are now available in this special issue of<jats:italic>R</jats:italic><jats:italic>adiocarbon</jats:italic>. These curves, nearly all derived from the<jats:sup>14</jats:sup>C age determinations of wood samples, are to be used for the age conversion of samples that were formed through use of atmospheric CO<jats:sub>2</jats:sub>. When samples are formed in reservoirs (eg, lakes and oceans) that differ in specific<jats:sup>14</jats:sup>C content from the atmosphere, an age adjustment is needed because a conventional<jats:sup>14</jats:sup>C age, although taking into account<jats:sup>14</jats:sup>C (and<jats:sup>13</jats:sup>C) fractionation, does not correct for the difference in specific<jats:sup>14</jats:sup>C activity (Stuiver & Polach, 1977). The<jats:sup>14</jats:sup>C ages of samples grown in these environments are too old, and a reservoir age correction has to be applied. This phenomenon has been referred to as the reservoir effect (Stuiver & Polach, 1977).</jats:p>

Journal

  • Radiocarbon

    Radiocarbon 28 (2B), 980-1021, 1986

    Cambridge University Press (CUP)

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