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首页> 外文期刊>Quaternary Science Reviews: The International Multidisciplinary Review Journal >Radiocarbon calibration uncertainties during the last deglaciation: Insights from new floating tree-ring chronologies
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Radiocarbon calibration uncertainties during the last deglaciation: Insights from new floating tree-ring chronologies

机译：在最后的解析期间的radiocarbon校准的不确定性：新的浮动树木时间中的洞察力

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摘要

Radiocarbon dating is the most commonly used chronological tool in archaeological and environmental sciences dealing with the past 50,000 years, making the radiocarbon calibration curve one of the most important records in paleosciences. For the past 12,560 years, the radiocarbon calibration curve is constrained by high quality tree-ring data. Prior to this, however, its uncertainties increase rapidly due to the absence of suitable tree-ring C-14 data. Here, we present new high-resolution C-14 measurements from 3 floating tree-ring chronologies from the last deglaciation. By using combined information from the current radiocarbon calibration curve and ice core Be-10 records, we are able to absolutely date these chronologies at high confidence. We show that our data imply large C-14-age variations during the Bolling chronozone (Greenland Interstadial 1e) - a period that is currently characterized by a long C-14-age plateau in the most recent IntCal13 calibration record. We demonstrate that this lack of structure in IntCal13 may currently lead to erroneous calibrated ages by up to 500 years. (C) 2017 Elsevier Ltd. All rights reserved.
机译：RadioCarbon约会是考古和环境科学中最常用的时间顺序工具处理过去50,000年，使RadioCarbon校准曲线成为古学学科最重要的记录之一。在过去的12,560年中，通过高质量的树木数据受到限制的无线电碳校准曲线。然而，在此之前，由于没有合适的树木C-14数据，其不确定性会迅速增加。在这里，我们从最后一个漂亮的树木旋转时间从3个浮动树圈年表中提供新的高分辨率C-14测量。通过使用来自当前的radiocarbon校准曲线和冰核的组合信息，我们能够在高信心下绝对地日期这些时间顺序。我们表明我们的数据意味着在Bolling Chronozone（格陵兰壁垒1E）期间的C-14岁差异大 - 目前在最近的INTCAL13校准记录中具有长C-14龄高原的时期。我们表明，INTCA113中的这种结构缺乏可能导致错误的校准年龄最长500岁。 （c）2017 Elsevier Ltd.保留所有权利。

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