書誌事項
- 公開日
- 2004
- 権利情報
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- https://www.cambridge.org/core/terms
- DOI
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- 10.1017/s0033822200035657
- 公開者
- Cambridge University Press (CUP)
この論文をさがす
説明
<jats:p>We assessed the evidence for variations in the marine radiocarbon reservoir effect (MRE) at coastal, archaeological Iron Age sites in north and west Scotland by comparing AMS measurements of paired marine and terrestrial materials (4 pairs per context). ΔR values were calculated from measurements on material from 3 sites using 6 sets of samples, all of which were deposited around 2000 BP. The weighted mean of the ΔR determinations was −79 ± 17 <jats:sup>14</jats:sup>C yr, which indicates a consistent, reduced offset between atmospheric and surface ocean <jats:sup>14</jats:sup>C specific activity for these sites during this period, relative to the present day (ΔR = ∼0 <jats:sup>14</jats:sup>C yr). We discuss the significance of this revised ΔR correction by using the example of wheelhouse chronologies at Hornish Point and their development in relation to brochs. In addition, we assess the importance of using the concepts of MRE correction and ΔR variations when constructing chronologies using <jats:sup>14</jats:sup>C measurements made on materials that contain marine-derived carbon.</jats:p>
収録刊行物
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- Radiocarbon
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Radiocarbon 46 (2), 611-620, 2004
Cambridge University Press (CUP)
