Lithostratigraphy of Late Weichselian tills on the West Estonian Islands

Kadastik, Ene; Kalm, Volli

doi:10.17741/bgsf/70.1-2.001

Cited by 9 publications

(9 citation statements)

References 9 publications

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“…These de pos its are also found in the bot tom of Tihu Suurjärv (Saarse, unpubl.). The grain size dis tri bu tion chart of waterlain till is multimodal and the con tact with the over ly ing beds is sharp and paved with dropstone (Kadastik and Kalm, 1998). If the basal silty clay is waterlain till, there should be a long-last ing hi a tus be tween sand and clay, as it de pos ited not later than 13,000 years ago , and mid-Ho lo cene sand dur ing the Litorina Sea stage.…”

Section: Discussion Litho- Bio-and Chronostratigraphymentioning

confidence: 99%

“…The basal blu ish-grey silty clay with clasts (unit Ti-1) in the Tihu se quence is most prob a bly waterlain till wide spread on Hiiumaa Is land (Eltermann, 1993a, b;Kadastik and Kalm, 1998;Kalm and Kadastik, 2001;Kadastik, 2004). These de pos its are also found in the bot tom of Tihu Suurjärv (Saarse, unpubl.).…”

Section: Discussion Litho- Bio-and Chronostratigraphymentioning

confidence: 99%

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Relative sea-level changes and development of the Hiiumaa Island, Estonia, during the Holocene

Vassiljev

Saarse

Grudzinska

et al. 2015

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1 Tallinn Uni ver sity of Tech nol ogy, In sti tute of Ge ol ogy, Ehitajate tee 5, 19086 Tallinn, Es to nia Vassiljev, J., Saarse, L., Grudzinska, I., Heinsalu, A., 2015. Rel a tive sea level changes and de vel op ment of the Hiiumaa Island, Es to nia, dur ing the Ho lo cene. Geo log i cal Quar terly, 59 (3): 517-530, doi: 10.7306/gq.1227Three sed i ment cores (Loopsoo, Tihu, Prassi) from Hiiumaa Is land (Es to nia) were in ves ti gated us ing di a toms, lithological prox ies, mag netic sus cep ti bil ity, geo chron ol ogi cal dates and in cor po rated with the pre vi ously stud ied Káivasoo site, aim ing to re con struct the de vel op ment of the is land and shore line changes dur ing the Litorina Sea and the Limnea Sea. The high est level of the Litorina Sea shore line near Káivasoo is at 27.6 m a.s.l., and it oc curred dur ing the Ini tial Litorina Sea. Within the Litorina Sea trans gres sion, 7800 cal yr BP, rel a tive sea level reached 24.9 m a.s.l. at Káivasoo, 24.1 m a.s.l. at Loopsoo, 23.6 m a.s.l. at Tihu, and 21.5 m a.s.l. at Prassi. Káivasoo be came iso lated from the sea about 8500 cal yr BP, Loopsoo between 7100 and 6800 cal yr BP, Tihu around 4800 cal yr BP, and Prassi about 2500 cal yr BP. Pres ently gained data from Hiiumaa Is land con firm that the Litorina Sea re gressed con sis tently dur ing the last 8000 years due to pro gres sively de clin ing iso static re bound. The pres ent study is also il lus trated by 3-di men sional palaeogeographic maps of the Hiiumaa Is land devel op ment.

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Section: Discussion Litho- Bio-and Chronostratigraphymentioning

confidence: 99%

Section: Discussion Litho- Bio-and Chronostratigraphymentioning

confidence: 99%

Relative sea-level changes and development of the Hiiumaa Island, Estonia, during the Holocene

Vassiljev

Saarse

Grudzinska

et al. 2015

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“…The deglaciation history and the glacial marginal formations have been discussed by Raukas et al (1971), Raukas (1986Raukas ( , 1992, Karukäpp & Raukas (1996) and Raukas & Kajak (1997). Geological mapping in the scale 1:50 000 of Quaternary deposits on the Islands of Hiiumaa and Saaremaa reveal three lithologically different tills (Eltermann 1993;Kadastik 1994Kadastik , 1995Kadastik , 1996Kadastik & Kalm 1998). In addition, a buried diamiction has been recovered in deep bedrock valleys, but at present its stratigraphic position is not reliably established.…”

Section: Previous Workmentioning

confidence: 99%

“…The Pleistocene deposits on the West-Estonian Islands comprise three different lateral diamictons of Late Weichselian age (Eltermann 1993;Kadastik 1996;Kadastik & Kalm 1998). All three belong to the Võrtsjärve Subformation according to the Estonian stratigraphic scheme (Raukas & Kajak 1995).…”

Section: Pleistocene Deposits On Hiiumaa and Saaremaamentioning

confidence: 99%

“…Only in the deep buried valleys on the Sõrve Peninsula is the Pandivere Till underlain by interstadial, or possibly interglacial, Viieristi Sands and an older till. A comparative lithological study of the diamictons (Kadastik 1994(Kadastik , 1996Kadastik & Kalm 1998) shows that in most parts of the area the Palivere Till directly overlies the Pandivere Till. Locally, on the Kõpu and Sõrve Peninsulas, the Pandivere and Palivere Tills are separated by an up to 36.5 m thick succession of interstadial sand deposits (Fig.…”

Section: Pleistocene Deposits On Hiiumaa and Saaremaamentioning

confidence: 99%

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Glacial deposits and Late Weichselian ice‐sheet dynamics in the northeastern Baltic Sea

Noormets

Flodén

2002

Boreas

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Glacial deposits and landforms, interprete d from the continuous seismic re ection data, have been used to reconstruc t the Late Weichselia n ice-shee t dynamics and the sedimentar y environment s in the northeaster n Baltic Sea. The bedrock geology and topography played an important role in the glacial dynamics and subglacia l meltwater drainage in the area. Drumlins suggest a south-southeasterl y ow direction of the last ice sheet on the Ordovician Plateau. Eskers demonstrat e that subglacia l meltwater ow was focused mostly within bedrock valleys. The eskers have locally been overlain by a thin layer of till. Thick proximal outwash deposits occupy elongate d depression s in the substratum , which often occur along the sides of esker ridges. Ice-margina l grounding-lin e deposit in the southern part of the area has a continuatio n on the adjacent Island of Saaremaa. Therefore, we assume that its formation took place during Palivere Stadial of the last deglaciation , whereas the moraine bank extendin g southwestwar d from the Sõrve Peninsula is tentativel y correlated with the Pandivere Stadial. The wedge-shape d ice-margina l grounding-lin e deposit was locally fed by subglacia l meltwater streams during a standstill or slight readvance of the ice margin. The thicknes s of the glacier at the groundingline was estimated to reach approximatel y 180 m. In the western part of the area, terrace-like morpholog y of the ice-margina l deposit and series of small retreat moraines 10-20 km north of it suggest stepwise retreat of the ice margin. Therefore, a rather thin and mobile ice stream was probably covering the northeaster n Baltic Sea during the last deglaciation . Riko Noormets

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