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RADIOCARBON DATE LIST 4

机译：放射性碳日期列表4

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摘要

As indicated in List 1 (VA 40, 2009), Vernacular Architecture is including lists of the results for radiocarbon-dated buildings, to accompany the annual lists of tree-ring dates. Radiocarbon measurement is now producing dates that are of sufficient precision to be of real value in the dating of historic buildings, as an alternative to dendrochronology when this fails to provide a date. The technique is principally being applied through 'wiggle-matching' of multiple dates, rather than single sample dates, though the latter can give 'good' dates under favourable circumstances. The direct result of the wiggle-matched radiocarbon dating is an estimated date for the final ring of the dated timber to which, if it lacks the waney edge, a sapwood allowance has to be made to obtain the estimated felling date. Dates combining tree-ring and radiocarbon dating are generally included here, rather than in the tree-ring lists. The results are presented as cal (calibrated) AD years with 95.4% probability limits. The use of italics indicates that the result is a posterior density estimate based on mathematical modelling from the original dating information (C. Tyers, 'Bayesian interpretation of tree-ring dates in practice', VA 39 (2008), 91-106). It should be noted that more than one felling date may be indicated with a non-negligible statistical likelihood. If the radiocarbon dates have been rounded out to the nearest five years, this is indicated below.
机译：如清单1所示（VA 40，2009），Vernacular Architecture包括放射性碳日期建筑物的结果清单，以及年度树年的清单。现在，放射性碳测量所产生的日期具有足够的精度，可以在历史建筑的日期中具有实际价值，如果无法提供日期，则可以替代树轮年代学。该技术主要是通过多个日期的“摆动匹配”而不是单个采样日期来应用的，尽管后者可以在有利的情况下给出“良好”日期。摆动匹配的放射性碳测年的直接结果是带日期标记的木材最后一枚戒指的估计日期，如果缺少圆角边缘，则必须留一边材津贴以获得估计的砍伐日期。此处通常包括结合年轮和放射性碳定年的日期，而不是在年轮列表中。结果以95.4％的概率限制表示为校准的AD年。斜体的使用表示结果是基于数学模型根据原始约会信息得出的后验密度估计值（C. Tyers，“实践中的树年枣的贝叶斯解释”，VA 39（2008），第91-106页）。应当指出的是，可能以不容忽视的统计可能性来指示一个以上的砍伐日期。如果放射性碳日期已四舍五入到最近的五年，则如下所示。

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