Last Interglacial sea-level data points from Northwest Europe
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Published:2022-06-27
Issue:6
Volume:14
Page:2895-2937
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ISSN:1866-3516
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Container-title:Earth System Science Data
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language:en
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Short-container-title:Earth Syst. Sci. Data
Author:
Cohen Kim M.ORCID, Cartelle Víctor, Barnett Robert, Busschers Freek S., Barlow Natasha L. M.
Abstract
Abstract. Abundant numbers of sites and studies exist in NW Europe
that document the geographically and geomorphologically diverse coastal
record from the Last Interglacial (Eemian, Ipswichian, Marine Isotope Stage
5e). This paper summarises a database of 146 known Last Interglacial
sea-level data points from in and around the North Sea (35 entries in the
Netherlands, 10 Belgium, 23 in Germany, 17 in Denmark, 9 in Britain) and the
English Channel (24 entries for the British and 25 for the French side, 3 on the
Channel Isles) believed to be a representative and fairly complete
inventory and assessment from ∼80 published sites. The
geographic distribution (∼1500 km SW–NE) across the
near field of the Scandinavian and British ice sheets and the attention
paid to relative and numeric age control are assets of the NW European
database. The research history of Last Interglacial coastal environments and
sea level for this area is long, methodically diverse and spread through
regional literature in several languages. Our review and database
compilation effort drew from the original regional literature and paid
particular attention to distinguishing between sea-level index points
(SLIPs) and marine and terrestrial limiting points. We also incorporated an
updated quantification of background rates of basin subsidence for the
central and eastern North Sea region, utilising revised mapping of the base
Quaternary, to correct for significant basin subsidence in this depocentre.
As a result of subsidence, lagoonal and estuarine Last Interglacial
shorelines of the Netherlands and the German Bight are preserved below the surface. In
contrast, Last Interglacial shorelines along the English Channel are
encountered above modern sea level. This paper describes the dominant sea-level indicators from the region
compliant with the WALIS database structure and referenced to original data
sources (https://doi.org/10.5281/zenodo.6478094, Cohen et al., 2021). The sea-level proxies are mostly obtained from locations
with good lithostratigraphic, morphostratigraphic and biostratigraphical
constraints. Most continental European sites have chronostratigraphic age
control, notably through regional pollen association zones with duration
estimates. In all regions, many SLIPs and limiting points have further
independent age control from luminescence, uranium series, amino acid
racemisation and electron spin resonance dating techniques. Main foreseen
usage of this database for the near-field region of the European ice sheets
is in glacial isostatic adjustment modelling and fingerprinting Last
Interglacial ice sheet melt.
Funder
H2020 European Research Council
Publisher
Copernicus GmbH
Subject
General Earth and Planetary Sciences
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