Obtaining archaeointensity data from British Neolithic pottery: A feasibility study
Obtaining archaeointensity data from British Neolithic pottery: A feasibility study
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DOI：
10.1016/j.jasrep.2021.102895
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发表时间：
2021-06
期刊：
影响因子：
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通讯作者：
Megan L. Allington;C. Batt;M. Hill;A. Nilsson;A. Biggin;N. Card
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作者：
Megan L. Allington;C. Batt;M. Hill;A. Nilsson;A. Biggin;N. Card
在英国，许多考古时期都严重缺乏地磁场强度(考古强度)的测量。这不仅使过去的地磁长期变化难以模拟，而且也限制了考古强度测年的发展。本文介绍了英国新石器时代材料的首次考古强度研究。在这项研究中，来自英国奥克尼市布罗德加尼斯河的25件新石器时代凹槽陶器碎片，其中一些带有直接的放射性碳年代，受到了全面的考古磁学调查，目的是增加英国考古强度的数据量。通过热强度实验和微波古强度实验来确定哪种技术最适合英国新石器时代的陶器。在35~40μT范围内，用热泰勒方法获得了3个成功的考古强度结果，这与15°半径范围内有限的数据和同期的地磁场模型预测是一致的。我们将结果分成四种不同的类型，目的是解释决定获得可接受的考古强度估计的可能性的行为。论证了从陶瓷中获取英国新石器时代地磁强度信息的可行性，为提高我们对英国考古时期地磁长期变化的认识提供了坚实的基础。
There is a significant lack of geomagnetic field strength (archaeointensity) measurements for many archaeological time periods in the United Kingdom (UK). This not only makes past geomagnetic secular variation difficult to model but also limits the development of archaeointensity dating. This paper presents the first archaeointensity study on UK Neolithic material. In this study, twenty-five sherds of Neolithic Grooved Ware pottery from the Ness of Brodgar, Orkney, UK, some with direct radiocarbon dates, were subjected to a full archaeomagnetic investigation with the aim of increasing the amount of archaeointensity data for the UK. Both thermal Thellier and microwave palaeointensity experiments were used to determine which technique would be most suitable for British Neolithic pottery. Three successful archaeointensity results between 35 and 40μT were obtained using thermal Thellier method, which is consistent with the limited data available within a 15° radius and geomagnetic field model predictions from the same time. We separated the results into four different types with an intention of explaining the behaviours that determine the likelihood of achieving an acceptable archaeointensity estimate. The feasibility of obtaining geomagnetic field strength information during the UK Neolithic from ceramics has been demonstrated and the results provide a solid basis for improving our knowledge of geomagnetic secular variation during archaeological time in Britain.