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A stratigraphically controlled multiproxy chronostratigraphy for the eastern Mediterranean

机译：东地中海地层控制的多代年代地层

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摘要

An Accelerator Mass Spectrometry (AMS) C-14 dated multiparameter event stratigraphy is developed for the Aegean Sea on the basis of highly resolved (centimeter to subcentimeter) multiproxy data collected from four late glacial to Holocene sediment cores. We quantify the degree of proportionality and synchroneity of sediment accumulation in these cores and use this framework to optimize the confidence levels in regional marine, radiocarbon-based chronostratigraphies. The applicability of the framework to published, lower-resolution records from the Aegean Sea is assessed. Next this is extended into the wider eastern Mediterranean, using new and previously published high-resolution data from the northern Levantine and Adriatic cores. We determine that the magnitude of uncertainties in the intercore comparison of AMS C-14 datings based on planktonic foraminifera in the eastern Mediterranean is of the order of +/- 240 years (2 SE). These uncertainties are attributed to synsedimentary and postsedimentary processes that affect the materials dated. This study also offers a background age control that allows for vital refinements to radiocarbon-based chronostratigraphy in the eastern Mediterranean, with the potential for similar frameworks to be developed for any other well-studied region.
机译：根据从四个晚期冰川至全新世沉积岩心收集的高度分辨（厘米至亚厘米）多代理数据，为爱琴海开发了一种加速器质谱（AMS）C-14日期多参数事件地层。我们量化了这些岩心中沉积物成比例和同步的程度，并使用该框架来优化区域海洋，基于放射性碳的年代地层学的置信度。评估了该框架对爱琴海已发布的低分辨率记录的适用性。接下来，利用来自黎凡特北部和亚得里亚海北部岩心的最新高分辨率数据，将其扩展到地中海东部。我们确定在地中海东部基于浮游有孔虫的AMS C-14测年的岩心比较中，不确定性的大小约为+/- 240年（2 SE）。这些不确定性归因于影响年代的材料的沉积和沉积过程。这项研究还提供了背景年龄控制，可以对地中海东部基于放射性碳的年代地层进行重大改进，并有可能为其他经过充分研究的地区开发类似的框架。

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