Chronology of Late Saalian and Middle Weichselian episodes of ice-free lacustrine sedimentation recorded in the Arumetsa section, southwestern Estonia

Rattas, Maris; Kalm, Volli; Kihno, Kersti; Liivrand, Elsbet; Tinn, Oive; Tänavsuu-Milkeviciene, Kati; Sakson, M.

doi:10.3176/earth.2010.2.03

Cited by 14 publications

(6 citation statements)

References 47 publications

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“…Rattas et al . ) reported that during the Middle Weichselian between 44 and 37 ka, ice‐free lacustrine conditions occurred at Arumetsa (SW Estonia). A shallow freshwater basin was mapped and dated to 52–24 ka in western Latvia (Saks et al .…”

Section: Discussionmentioning

confidence: 99%

A new Early–Middle Weichselian palaeoenvironmental record from a lacustrine sequence at Svirkanciai, Lithuania

Satkūnas

Grigienė

Buynevich

et al. 2012

Boreas

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The Middle Weichselian (OIS 4‐3) and the transition from Early to Middle Weichselian are the most problematic and disputed time intervals of the Late Pleistocene with regard to the palaeogeography of the Fennoscandian glaciations. The number of sites with sediments of Middle Weichselian age in the Baltic region is very limited. An extensive area (77 km2) of lacustrine sediments (sand, clay, silt with humus and interlayers of peat), under the relief‐forming Upper Weichselian till, was discovered in the vicinity of the Venta settlement, northwestern Lithuania, and named the Venta Palaeolacustrine Basin. The Svirkanciai outcrop (56°18′05″N, 22°53′00″E) (15 m in height) of this palaeobasin is composed of two sediment complexes of different genesis and age. The lower part consists of silt and very fine‐grained sand of lacustrine origin. According to palynological data, the lacustrine sediments accumulated under boreo‐arctic climatic conditions. The pollen records suggest that local vegetation was sparse forest with open areas. An Optically Stimulated Luminescence (OSL) date of the lacustrine sand yielded an age of >79±6 ka, which indicates that lacustrine conditions may have occurred during part of the Early Weichselian Odderade Interstadial (Jonionys 2). However, the palynological data from Svirkanciai suggest a Middle Weichselian age, possibly correlating with the Oerel Interstadial (Jonionys 3) 55 ka ago. No traces of early Middle Weichselian Schalkholz (Nemunas 2a) stadial glacial advance have been found in the Venta sections. This also suggests a Middle Weichselian age for the Svirkanciai lacustrine sediments.

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Section: Discussionmentioning

confidence: 99%

A new Early–Middle Weichselian palaeoenvironmental record from a lacustrine sequence at Svirkanciai, Lithuania

Satkūnas

Grigienė

Buynevich

et al. 2012

Boreas

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“…These dates are in excellent agreement with the age determinations from the basal portion at KKH, which formed during the Saalian deglaciation (MIS 6, Termination II). The regional context within the southern Baltic area is provided by only a limited number of studies that are constrained by absolute age dating of late MIS 6 successions (summarized in Rattas et al 2010). Similarly, there are only a few Eemian surface outcrops across this region, with the majority of the available information on last interglacial conditions derived from borehole data (Andr en et al 2011).…”

Section: Broader Regional Contextmentioning

confidence: 99%

A multi‐proxy palaeoenvironmental and geochronological reconstruction of the Saalian‐Eemian‐Weichselian succession at Klein Klütz Höved, NE Germany

Kenzler

Rother

Hüneke

et al. 2017

Boreas

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Here we present a multi-proxy investigation of the Klein Kl€ utz H€ oved (KKH) coastal cliff section in northeastern Germany, involving lithofacies analysis, micromorphology, micropalaeontology, palynology and luminescence dating of quartz and feldspar. We subdivide the local stratigraphy into three depositional phases. (i) Following a Saalian advance (MIS 6) of the Scandinavian Ice Sheet, the penultimate deglaciation (Termination II) at the site occurred between c. 139 and 134 ka, leading to the establishment of abraided river system and lacustrine basins under arctic-subarctic climate conditions. (ii) In the initial phase of the Eemian interglacial lacustrine deposits were formed, containing warm-water ostracods and a pollen spectrum indicating gradual expansion of woodlands eventually containing thermophile deciduous forest elements. A correlation of the local pollen assemblages with Eemian reference records from central Europe suggests that fewer than 750 years of the last interglacial period are preserved at KKH. The occurrence of brackish ostracods dates the onset of the Eemian marine transgression at the section at c. 300-750 years after the beginning of the last interglacial period. (iii) Directly above the Eemian record a~10-mthick sedimentary succession of MIS 2 age was deposited, implying a significant hiatus of c. 90 ka encompassing the time from middle and upper MIS 5e to late MIS 3. During the Late Weichselian, KKH featured a depositional shift from (glacio-)lacustrine to subglacial to recessional terminoglacial facies, with the first documented Weichselian ice advance post-dating 20AE2 ka. Overall, the KKH section represents an exceptional sedimentary archive for palaeoenvironmental reconstructions, covering the period from the Saalian glaciation and subsequent Termination II to the early Eemian and Late Weichselian. The results refine the existing palaeogeographical and geochronological models of the late Quaternary history in the southwestern Baltic Sea area and allow correlations with other reference records in a wider area.

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“…These de pos its, there fore, con sti tute suit able ma te rial for chro no log i cal stud ies. The OSL method has been fre quently used in the last de cade to ob tain the age of glacioaquatic, flu vial, lac us trine and ae olian de pos its in the Bal tic re gion (Kalm, 2006;Molodkov et al, 2010;Rattas et al, 2010;Raukas et al, 2010;Zelès et al, 2011;Saks et al, 2012;Satkñnas and GrigienÅ, 2012;Baltrñnas et al, 2013;Kaliñska-Nartiëa et al, 2015a, b, 2016. De spite this, ques tionable OSL ages have been fre quently ob tained from glaciolacustrine and glaciofluvial de pos its (e.g., Raukas et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

New luminescence ages reveal Early to Middle Weichselian deposits in central Latvia

Lamsters

Kalińska

Zelčs

et al. 2017

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New op ti cally stim u lated lu mi nes cence (OSL) ages show that sandy de pos its over lain by Late Weichselian subglacial till in cen tral Lat via are of Early to Mid dle Weichselian age. The finer chro no log i cal res o lu tion of un con sol i dated sed i ment de po sition in the Cen tral Lat vian Low land (CLL) re mains rel a tively un stud ied, and here we pro vide a first char ac teri sa tion of the depos its with re spect to their age. Three OSL ages rang ing be tween 84 ± 9 ka and 112 ± 11 ka sug gest that the de pos its stud ied in the CLL are of Early Weichselian age (MIS 5). We found no Mid dle Weichselian de pos its in the CLL, and as sume that any such youn ger sed i ments might have been eroded dur ing the ad vance of the Zemgale Lobe in the Late Weichselian. One site, in the ice-mar ginal zone ad ja cent to the interlobate area, has nev er the less de pos its dated to 44 ± 10 ka cor re spond ing to the Mid dle Weichselian (MIS 3). Our re sults are com pat i ble with ex ist ing ESR ages on three sets of Portlandia arctica shells from the cen tral part of the low land; the shells had been in cor po rated into gla cial de pos its dur ing later gla cial ad vances. Fi nally, our find ings largely sup port ice-free con di tions dur ing the Early and Mid dle Weichselian in the mid dle and south ern part of cen tral Lat via. Key words: op ti cally stim u lated lu mi nes cence (OSL) dat ing, subglacial bedforms, Early Weichselian, Mid dle Weichselian, cen tral Lat via.

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Chronology of Late Saalian and Middle Weichselian episodes of ice-free lacustrine sedimentation recorded in the Arumetsa section, southwestern Estonia

Cited by 14 publications

References 47 publications

A new Early–Middle Weichselian palaeoenvironmental record from a lacustrine sequence at Svirkanciai, Lithuania

A new Early–Middle Weichselian palaeoenvironmental record from a lacustrine sequence at Svirkanciai, Lithuania

A multi‐proxy palaeoenvironmental and geochronological reconstruction of the Saalian‐Eemian‐Weichselian succession at Klein Klütz Höved, NE Germany

New luminescence ages reveal Early to Middle Weichselian deposits in central Latvia

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