北海南部的ΔR新价值及其在海岸研究中的应用

IF 1.6 2区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Netherlands Journal of Geosciences-Geologie En Mijnbouw Pub Date : 2021-01-20 DOI:10.1017/njg.2020.19

D. Enters, Kristin Haynert, A. Wehrmann, H. Freund, F. Schlütz

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引用次数: 7

摘要

摘要利用加速器质谱法(AMS)对公元1889年在Wangerooge岛附近采集的甲壳(Cerastoderma edule, Linnaeus 1767)和贻贝(Mytilus edulis, Linnaeus 1758)进行放射性碳(14C)测年，得出瓦顿海地区新的局部校正因子ΔR为−85±17 14C年。这一数值大大高于从北海得到的分散数据，这些数据是由北极现存岛屿的爆炸前生长环(Linnaeus 1767)获得的。这可以通过将14c耗尽的陆地碳纳入壳材料来解释，这补偿了大气和浅海水域之间二氧化碳的强化交换，例如潮汐流。此外，在沿海研究中应用ΔR新值的两个例子，更深入地了解了瓦登海双壳类贝壳保存的动态，以及进一步研究澄清全新世Mya arenaria (Linnaeus 1758)重新引入欧洲水域的必要性。

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A new ΔR value for the southern North Sea and its application in coastal research

Abstract Accelerator mass spectrometry (AMS) radiocarbon (14C) dating of Cerastoderma edule (Linnaeus 1767) and Mytilus edulis (Linnaeus 1758) shells sampled in AD 1889 near the island of Wangerooge gave a new local correction factor ΔR of −85 ± 17 14C years for the Wadden Sea area. The value is considerably higher than the available scattered data from the North Sea, which were obtained from pre-bomb growth rings of living Arctica islandica (Linnaeus 1767). This can be explained by the incorporation of 14C-depleted terrestrial carbon into the shell material which compensates the intensified exchange of CO2 between atmosphere and shallow coastal water, e.g. by tidal currents. Additionally, two examples of application of the new ΔR value in coastal research give deeper insights into the dynamics of bivalve shell preservation in the Wadden Sea and the need for further research to clarify the Holocene reintroduction of Mya arenaria (Linnaeus 1758) into European waters.

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来源期刊

Netherlands Journal of Geosciences-Geologie En Mijnbouw 地学-地球科学综合

CiteScore

4.00

自引率

25.90%

发文量

审稿时长

>12 weeks

期刊介绍： Netherlands Journal of Geosciences - Geologie en Mijnbouw is a fully open access journal which publishes papers on all aspects of geoscience, providing they are of international interest and quality. As the official publication of the ''Netherlands Journal of Geosciences'' Foundation the journal publishes new and significant research in geosciences with a regional focus on the Netherlands, the North Sea region and relevant adjacent areas. A wide range of topics within the geosciences are covered in the journal, including "geology, physical geography, geophyics, (geo-)archeology, paleontology, hydro(geo)logy, hydrocarbon exploration, modelling and visualisation." The journal is a continuation of Geologie and Mijnbouw (published by the Royal Geological and Mining Society of the Netherlands, KNGMG) and Mededelingen Nederlands Instituut voor Toegepaste Geowetenschappen (published by TNO Geological Survey of the Netherlands). The journal is published in full colour.