Holocene sea-level database for the Rhine-Meuse Delta, The Netherlands: Implications for the pre-8.2 ka sea-level jump

Hijma, M.P.; Cohen, K.M.

doi:10.1016/j.quascirev.2019.05.001

Cited by 63 publications

(97 citation statements)

References 84 publications

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“…The integration of palaeobathymetry and seismic analyses (e.g. Gaffney et al 2007), and progress in refining estimates of sea-level rise (Hijma et al 2010(Hijma et al , 2019Shennan et al 2018;Emery et al 2019), have allowed us to characterise the nature and extent of the prehistoric landmass in the southern North Sea (Figure 2). 'Doggerland' typically refers to the entire submerged landscape stretching from the Dover/Calais Strait to the Norwegian Sea (Coles 1998).…”

Section: A Three-stage History Of Gradual Inundationmentioning

confidence: 99%

“…The uplands, comprising the current Dogger Bank, would probably have been cut off (Figure 2b), forming Dogger Island, which survived for approximately another millennium. The rapidity of sea-level rise around this time (Hijma & Cohen 2010) complicates assessment of the period for which this island remained an attractive ecological zone for exploitation or viable settlement. The broader landscape became increasingly fragmented by the formation of estuaries, inlets and islands (Gearey et al 2017: 49).…”

Section: The Dogger Archipelago and Dogger Islandmentioning

confidence: 99%

“…Between 8400 and 8200 cal BP, the global average sea level rose (possibly in two phases) between 1 and 4m (Hijma & Cohen 2019: 83). By the time the tsunami struck, c. 8150 BP, this higher sea level had probably reduced Dogger Island to a shallow sand bank (Hijma & Cohen 2010, 2019Törnqvist & Hijma 2012;Emery et al 2019). Reconstructing the contemporaneous shoreline using bathymetry and the relative sea-level curve (Shennan et al 2018) indicates the possible survival of a small area (approximately 1000km 2 ), comprising the highest terrain, south of the present-day sand bank (Figure 2c)-even assuming the maximal estimate of a 4m sea-level rise (Emery et al 2019).…”

Section: The Dogger Littoralmentioning

confidence: 99%

“…2007), and progress in refining estimates of sea-level rise (Hijma et al . 2010, 2019; Shennan et al . 2018; Emery et al .…”

Section: A Three-stage History Of Gradual Inundationmentioning

confidence: 99%

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A great wave: the Storegga tsunami and the end of Doggerland?

et al. 2020

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Section: A Three-stage History Of Gradual Inundationmentioning

confidence: 99%

Section: The Dogger Archipelago and Dogger Islandmentioning

confidence: 99%

Section: The Dogger Littoralmentioning

confidence: 99%

“…2007), and progress in refining estimates of sea-level rise (Hijma et al . 2010, 2019; Shennan et al . 2018; Emery et al .…”

Section: A Three-stage History Of Gradual Inundationmentioning

confidence: 99%

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A great wave: the Storegga tsunami and the end of Doggerland?

et al. 2020

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“…One of the basic assumptions underpinning relative basal-peat sea-level studies is that in the humid climate of NW Europe in the Holocene, freshwater-peat growth in the coastal plain takes place at or abovebut never lower than -Mean Sea Level (MSL) at that location (Meijles et al, 2018). It is generally accepted that basal peat starts forming at local MSL or, when there is tidal influence, at Mean High Water (MHW) level (Hijma & Cohen, 2019).…”

Section: Basal Peat Sea-level Studiesmentioning

confidence: 99%

Late-Holocene sea-level reconstruction (1200 BC–AD 100) in the Westergo terp region of the northern Netherlands

Vos¹,

Nieuwhof

2021

Netherlands Journal of Geosciences

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In the early 20th century, archaeological research in the terp (artificial dwelling-mound) region of the northern Netherlands focused, besides settlement history, on natural salt-marsh dynamics and sea-level rise. In particular Van Giffen used salt-marsh deposits under dated terp layers to reconstruct the rate of sedimentation of the developing salt marsh and relative sea-level rise. This line of research in archaeology was rekindled during excavations in the terp of Wijnaldum-Tjitsma between 1991 and 1993. Since then, geology has become an integral part of archaeological research in the terp region. This paper focuses on the northwestern part of the province of Friesland (Westergo), where most archaeological terp research during the past three decades has been carried out, owing to several research programmes by the Province of Friesland. The primary aim of the geoarchaeological research is to better understand the interaction between human inhabitants and the salt-marsh landscape. The sedimentary record exposed in the excavation trenches makes it possible to collect data on the development of the coastal environments of the Wadden Sea prior to habitation, including data on sea-level rise. The sea-level data collected in the geoarchaeological studies in Westergo are the topic of this paper. The measured levels of the tidal-flat/salt-marsh boundary underneath the terps make it possible to reconstruct palaeo-Mean High Water (palaeo-MHW) levels. Such sea-level index points (SLIPs), based on marine shell data points from 12 locations, now make it possible to establish a palaeo-MHW diagram for this part of the Wadden Sea, for the period between 1200 BC and AD 100. In this period the palaeo-MHW in the Westergo region rose from c.1.8 m to 0.3 m −NAP: a mean sea-level rise of c.0.12 m per century. We discuss the fact that elevation of the palaeo-MHW SLIP is not only determined by relative sea level (RSL), but also by the magnitude of the tidal amplitude. The tidal range, and therefore the MHW elevations in a tidal basin, can change from place to place and also in time. Also in a single tidal basin the tidal range is variable, due to the distortion of the tidal wave as a result of the morphology of the tidal system. Such local tidal range fluctuations – not related to sea-level rise – influence the palaeo-MHW curve of Westergo and other tidal basins in the Wadden Sea and need to be taken into account when interpreting the curve. In this paper, we will go into the causes of changes in palaeotidal ranges in meso- and macrotidal systems, analyse the tidal range variations in recent and subrecent basins and estuaries and discuss the implications of these changes on the sea-level curve of the Westergo region in NW Friesland.

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Using legacy data to reconstruct the past? Rescue, rigour and reuse in peatland geochronology

Quik

Velde

Harkema

et al. 2021

Earth Surf Processes Landf

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There is a growing interest in the rescue and reuse of data from past studies (so-called legacy data). Data loss is alarming, especially where natural archives are under threat, such as peat deposits. Here we develop a workflow for reuse of legacy radiocarbon dates in peatland studies, including a rigorous quality assessment that can be tailored to specific research questions and study regions. A penalty is assigned to each date based on criteria that consider taphonomic quality (i.e., sample provenance) and dating quality (i.e., sample material and method used). The weights of quality criteria may be adjusted based on the research focus, and resulting confidence levels may be used in further analyses to ensure robustness of conclusions.We apply the proposed approach to a case study of a (former) peat landscape in the Netherlands, aiming to reconstruct the timing of peat initiation spatially. Our search yielded 313 radiocarbon dates from the 1950s to 2019. Based on the quality assessment, the dates-of highly diverse quality-were assigned to four confidence levels.Results indicate that peat initiation for the study area first peaked in the Late Glacial ($14,000 cal years BP), dropped during the Boreal ($9,500 cal years BP) and showed a second peak in the Subboreal ($4,500 cal years BP). We tentatively conclude that the earliest peak was mostly driven by climate (Bølling-Allerød interstadial), whereas the second was probably the result of Holocene sea level rise and related groundwater level rise in combination with climatic conditions (hypsithermal). Our study highlights the potential of legacy data for palaeogeographic reconstructions, as it is cost-efficient and provides access to information no longer available in the field.However, data retrieval may be challenging, and reuse of data requires that basic information on location, elevation, stratigraphy, sample and laboratory analysis are documented irrespective of the original research aims.

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Holocene sea-level database for the Rhine-Meuse Delta, The Netherlands: Implications for the pre-8.2 ka sea-level jump

Cited by 63 publications

References 84 publications

A great wave: the Storegga tsunami and the end of Doggerland?

A great wave: the Storegga tsunami and the end of Doggerland?

Late-Holocene sea-level reconstruction (1200 BC–AD 100) in the Westergo terp region of the northern Netherlands

Using legacy data to reconstruct the past? Rescue, rigour and reuse in peatland geochronology

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