The generation of reliable age models for palaeoenvironmental and archaeological records in the Eurasian Arctic is often problematic when using conventional dating techniques. Tephrochronology can potentially improve the chronologies of such records and synchronise disparate sedimentary archives. However, to date, systematic tephra studies are lacking for this region. This paper presents the first cryptotephra data from the White Sea region (northwestern Russia) based on a peat core spanning the past ~1800 years. We identify seven geochemical glass populations that derive from six Icelandic volcanoes and correlate four of them to north European tephra isochrons; these include Askja ad 1875, the basaltic component of the ad 877 Landnám tephra, and tephras BTD‐15 (c. ad 1750–1650) and SL‐2/SB‐2 (ad 803–767) from unknown eruptions of Katla and Snæfellsjökull, respectively. The remaining three populations originate from Grímsvötn, Hekla and Katla; however, their attribution to individual eruptions remains ambiguous. These findings highlight the potential to extend the Late Holocene tephrochronological framework of northern Europe to the west Eurasian Arctic. The detection of at least three basaltic tephras in the core suggests that basaltic shards can be transported over larger distances than previously known and that peatlands are well suited to preserve such components.

中文翻译：

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识别白海地区近两千年来的冰岛特非拉斯（俄罗斯西北部的Vodoprovodnoe泥炭沼泽）

使用传统的测年技术时，欧亚北极地区古环境和考古记录可靠年龄模型的产生通常是有问题的。年代学可以潜在地改善这种记录的年代，并同步不同的沉积档案。但是，迄今为止，该地区尚缺乏系统的特非拉研究。本文基于过去约1800年的泥炭岩心，展示了来自白海地区（俄罗斯西北部）的第一批隐球菌数据。我们确定了来自六个冰岛火山的七个地球化学玻璃种群，并将其中四个与北欧特非拉等时线相关联。这些包括阿斯恰火山广告1875年，的玄武部件广告877Landnám火山灰，和火山灰层BTD-15（C。广告1750–1650）和SL‐2 / SB‐2（广告803–767）分别来自Katla和Snæfellsjökull的未知喷发。其余三个人口分别来自格林斯沃特，赫克拉和卡特拉；但是，它们对个体喷发的归属仍然不明确。这些发现凸显了将北欧晚期全新世年代学框架扩展到西欧亚北极的潜力。在岩心中至少检测到三个玄武岩提弗拉斯，这表明玄武岩碎片可以比以前已知的距离更大的距离运输，并且泥炭地非常适合保存这些成分。