Palaeoreconstruction of the Baltic Ice Lake in the Eastern Baltic

Vassiljev, Jüri; Saarse, Leili; Rosentau, Alar

doi:10.1007/978-3-642-17220-5_9

Cited by 8 publications

(6 citation statements)

References 22 publications

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“…Primarily the shore displacement of the BIL was solely distinguished on the base of the morphological evidence and pollen zones have been used as a time markers (Ramsay, 1929;Pärna, 1960). Since those first studies methodology of shoreline reconstruction has been significantly developed, especially during the last 10 years (e.g., Leverington et al, 2002;Jakobsson et al, 2007;Rosentau et al, 2007;Vassiljev et al, 2011). Miidel (1995) summarized geomorphological and geochronological data on more than 200 shoreline sites in Estonia and applied trend surface analyses to reconstruct the isobases of the BIL, Ancylus Lake and Litorina Sea.…”

Section: Introductionmentioning

confidence: 99%

“…Saarse et al (2003) examined the Baltic Sea shoreline data statistically using a point kriging interpolation. The shoreline database was created and published (Vassiljev et al, 2005;Saarse et al, 2007) enabling us to expand the reconstructions to the neighbouring areas (Rosentau et al, 2007(Rosentau et al, , 2008Vassiljev et al, 2011). But the chronology of the deglaciation and the timing of the BIL stages associated with the ice marginal belts is still debated because different dating methods, as OSL, cosmogenic 10 Be, varve chronology and AMS-14 C dates produced different ages (Raukas, 2004;Saarse et al, 2009Saarse et al, , 2012aHang et al, 2011;Kalm et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Timing of the Baltic Ice Lake in the eastern Baltic

Vassiljev¹,

Saarse²

2013

Bull Geol Soc Finland

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and was used to create a GIS-based palaeogeographical reconstructions on the development of the Baltic Ice Lake (BIL). The formation of the highest shoreline of the BIL in Estonia was connected with the development of the Pandivere ice marginal zone (Estonia) and the lowest with the Salpausselkä ice-marginal formations (Finland). There was a well-accepted knowledge that the Pandivere ice marginal zone correlates with the Neva ice marginal zone in NW Russia dated to 13 300 cal yr BP. Recent studies of the late glacial sites in northern Estonia indicate that the age of the Pandivere ice marginal zone and hence the highest shoreline of the BIL A 1 is about 13 800-14 000 cal yr BP. It was followed by the BIL stage A 2 , which formed in front of the Palivere ice marginal belt about 13 200-13 500 cal yr BP. The final drainage of the BIL took place about 11 650 cal yr BP. The timing of the BIL stages was derived from AMS-14 C dates and correlated with varve chronology, OSL and 10 Be dates.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Timing of the Baltic Ice Lake in the eastern Baltic

Vassiljev¹,

Saarse²

2013

Bull Geol Soc Finland

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“…The erosional discontinuity at the upper contact of clay with the overlying marine sand points to post-sedimentary erosion in all localities discussed in this paper. Modelling results Andrén et al, 2011;Vassiljev et al, 2011) do not reveal any low water-level episodes in the development of the BIL in the eastern Baltic before the final drainage event at 11 650 yrs BP (Andrén et al, 2002). Unfortunately, clear geological evidence for determining the lowest water-level after the Billingen event are missing in western Estonia.…”

Section: Discussionmentioning

confidence: 93%

“…In our study area in the surroundings of the town Pärnu at the northeastern coast of the Gulf of Riga, the water depth of the BIL at that time was more than 40 m (Rosentau et al, 2009). According to spatial distribution and bathymetry models of the BIL in the eastern Baltic (Rosentau et al, 2009;Vassiljev et al 2011), relatively deep water (20-40 m) conditions remained in western Estonia at least until the ice margin stood at Salpausselkä I formations Fig. 1.…”

Section: Introductionmentioning

confidence: 79%

Glacial varves at the distal slope of Pandivere-Neva ice-recessional formations in western Estonia

Talviste¹,

Hang²,

Kohv³

2012

Bull Geol Soc Finland

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The distribution and varve thickness data of Late Weichselian varved clay were analyzed to describe the proglacial sedimentary environment, ice recession and water-level changes in the Baltic Ice Lake at the distal position of Pandivere-Neva (13.5-13.1 ka BP) ice-recessional formations in western Estonia. According to vertical changes in natural water content, fabric and varve thickness, four clay units were distinguished, reflecting a change in the sedimentary environment from ice-proximal to distal conditions. The varved clay complex is locally interrupted by a massive silty-clay unit, interpreted as an icedrift material during the stagnation of the glacier margin at the Pandivere-Neva line. Varve correlation gave a 294-year-long floating varve chronology. According to total varve thickness and the relation between thicknesses of seasonal layers, an about 130year period of ice-proximal conditions in the study area was followed by a rapid (within ca 20 years) change to more distal conditions. The presented varve chronology does not cover the entire period of proglacial conditions in the area, as all studied clay sections displayed an erosional discontinuity at the upper contact. In total, ca 4 m of selective post-sedimentary erosion of clay is attributed to wave erosion due to a water-level drop after the final drainage of the Baltic Ice Lake. It is concluded that the Yoldia Sea minimum level in the Pärnu area was 0 to-2 m a.s.l.

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“…Contemporary research that has endeavoured to reconstruct the palaeogeographic development of the coastline changes in northern Estonia has centred on the early stages of the Baltic Sea basin, i.e. the development of the Baltic Ice Lake (Rosentau et al 2007;Vassiljev et al 2011), Yoldia Sea (Heinsalu & Veski 2007), Ancylus Lake (Veski 1998;Saarse et al 1999) and Litorina Sea (Saarse et al 2009. In general, little is known about the Late Holocene shoreline displacement patterns on the Estonian coast of the Gulf of Finland.…”

Section: Introductionmentioning

confidence: 99%

A palaeocoastline reconstruction for the Käsmu and Pärispea peninsulas (northern Estonia) over the last 4000 years

Grudzinska¹,

Saarse²,

Vassiljev³

et al. 2012

Estonian J. Earth Sci.

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The marine-freshwater environmental transition, i.e. basin isolation from the Limnea Sea, has been identified in two short sediment cores with respect to their diatom composition, loss-on-ignition and magnetic susceptibility content. The isolation level of the basins was dated by accelerator mass spectrometry radiocarbon measurements. The basins are situated on the southern coast of the Gulf of Finland between altitudes 5.5 and 3.9 m above sea level. The Lohja basin became isolated from the sea around 2300 cal yr BP and Käsmu basin around 1800 cal yr BP as a result of glacio-isostatic uplift. The total land upheaval rate that has been 2.6 mm yr –1 since 2500 cal yr BP has currently decreased to 2.0 mm yr –1. We present a GIS-based 3D palaeogeographic reconstruction of the palaeocoastline changes in northern Estonia for two peninsulas, Pärispea and Käsmu, as well as compose a shoreline displacement curve for the study area, which is a compilation of previous and ongoing investigations

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Palaeoreconstruction of the Baltic Ice Lake in the Eastern Baltic

Cited by 8 publications

References 22 publications

Timing of the Baltic Ice Lake in the eastern Baltic

Timing of the Baltic Ice Lake in the eastern Baltic

Glacial varves at the distal slope of Pandivere-Neva ice-recessional formations in western Estonia

A palaeocoastline reconstruction for the Käsmu and Pärispea peninsulas (northern Estonia) over the last 4000 years

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