A global compilation of U-series-dated fossil coral sea-level indicators for the Last Interglacial period (Marine Isotope Stage 5e)
A global compilation of U-series-dated fossil coral sea-level indicators for the Last Interglacial period (Marine Isotope Stage 5e)
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DOI：
10.5194/essd-13-3155-2021
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发表时间：
2021-07-02
影响因子：
11.4
通讯作者：
Dutton, Andrea
中科院分区：
文献类型：
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作者：
Chutcharavan, Peter M.;Dutton, Andrea
该数据集是对已发布的铀钍（U 系列）化石珊瑚记录（距今约 15 万至 11 万年前）以及相关海拔测量值和样本元数据的全面汇编。当前版本的数据集总共包含来自 994 个独特珊瑚群落的 1312 个 U 系列测量值，所有这些测量值均已使用相同的衰减常数值进行归一化和重新计算。在这些测量中，来自 330 个群体的 444 项分析是相对海平面指标，而来自 13 个群体的 15 项分析是海洋限制指标。其中包括两个示例地球化学筛选标准，以帮助用户识别显示地球化学开放系统行为的改变的化石珊瑚，并且最初发布的关于年龄质量的解释已保留在样本元数据中。此外，处于初级生长位置的珊瑚群落（可用于相对海平面重建）和已运输/重新加工的珊瑚群落（不能用于这些目的）之间进行了明确区分。未来涉及化石珊瑚海平面重建的研究工作应强调“综合”和整体方法，将U系列年龄质量的仔细评估与高精度测量技术和详细的相/地层观测结合起来。
This dataset is a comprehensive, global compilation of published uranium-thorium (U-series) dated fossil coral records from similar to 150 000-110 000 years ago, as well as associated elevation measurements and sample metadata. In total, 1312 U-series measurements from 994 unique coral colonies are included in the current version of the dataset, all of which have been normalized and recalculated using the same decay constant values. Of these measurements, 444 analyses from 330 colonies are relative sea-level indicators, whereas 15 analyses from 13 colonies are marine limiting. Two example geochemical screening criteria have been included to assist users with identifying altered fossil corals that display geochemical open-system behavior, and the originally published interpretations on age quality have been preserved within the sample metadata. Additionally, a clear distinction has been made between coral colonies that are in primary growth position, which may be used for relative sea-level reconstructions, and colonies that have been transported/reworked, which cannot be used for these purposes. Future research efforts involving fossil coral sea-level reconstructions should emphasize an "integrated" and holistic approach that combines careful assessment of U-series age quality with high-precision surveying techniques and detailed facies/stratigraphic observations.