On the deglaciation chronology of the Palivere ice-marginal zone, northern Estonia

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2012-06-01 DOI:10.17741/BGSF/84.1.002

L. Saarse, A. Heinsalu, S. Veski, L. Amon, Andrejus Gaidamavičius

引用次数: 8

Abstract

This paper presents new bio-, litho- and chronostratigraphical evidence from two adjacent sediment sequences of the Todva and Saku basins, northern Estonia that refine the age estimate of the Palivere ice-marginal zone and the deglaciation history of Estonia. Previous palynological studies demonstrated the presence of late-glacial sediments in the area; however, those sections were not dated, and their ages were poorly constrained. New accelerator mass spectrometry (AMS) 14 C dates show that sedimentation in the Todva basin started at approximately 13 200 cal yr BP. Therefore, because the studied sites are located at the distal part of this zone, we infer that this age represents the minimum timing of the ice retreat from the Palivere ice-marginal zone.

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爱沙尼亚北部帕利维尔冰缘带的消冰年代学研究

本文提出了来自爱沙尼亚北部Todva和Saku盆地两个相邻沉积物序列的新的生物、岩性和年代地层证据，这些证据改进了palvere冰边缘带的年龄估计和爱沙尼亚的消冰史。先前的孢粉学研究表明，该地区存在晚冰期沉积物;然而，这些章节没有注明日期，它们的年代也没有得到很好的限制。新的加速器质谱(AMS) 14c测年表明，Todva盆地的沉积开始于大约13200 calyr BP。因此，由于研究地点位于该带的远端，我们推断该年龄代表了冰从Palivere冰边缘带退缩的最小时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.