The rare Holsteinian (Mazovian) interglacial limnic deposits in the Książnica outcrop at Krzczonów (near Świdnica), Sudetic Foreland

Krzyszkowski, Dariusz; Wachecka-Kotkowska, Lucyna; Malkiewicz, Małgorzata; Jary, Zdzisław; Tomaszewska, Klara; Niska, Monika; Myśkow, Elżbieta; Raczyk, Jerzy; Drzewicki, Wojciech; Hamryszczak, Dawid; Nawrocki, Jerzy; Ciszek, Dariusz; Rzodkiewicz, Monika; Krzymińska, Jarmila; Skurzyński, Jacek; Jezierski, Piotr

doi:10.1016/j.quaint.2017.09.046

Cited by 5 publications

(5 citation statements)

References 66 publications

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“…The thicknesses of single varves vary from~1 up to 69 cm. Summer and winter units are differentiated on the basis of (i) the variety of lithofacies, (ii) grain size and colour, (iii) thickness, (iv) the geometry and origin of contacts between laminae, and (v) the presence of microlaminae(Krzyszkowski 1993;Wachecka-Kotkowska et al 2017;Krzyszkowski et al 2019).…”

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confidence: 99%

The Middle Pleistocene glaciolacustrine environment of an ice‐dammed mountain valley, Sudeten Mountains, Poland

Krzyszkowski

Krzywicka

Wachecka-Kotkowska

et al. 2019

Boreas

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This article reports on an Early Saalian proglacial lake formed between the Scandinavian Ice Sheet and the front of the Sudeten Mountains, Poland. Sediments investigated at Mysłów point to a transition from glacifluvial to glaciolacustrine environments. The bulk of the sediments was deposited in deep‐water Gilbert‐type deltas (A–E complexes). A delta plain (topset) gradually passes into a subaerial plateau and then a clastic shoreline and the subaquatic slope of a prograding delta (foreset). The glaciolacustrine lithofacies represent a number of lake‐basin environments, from marginal subaqueous slopes to distal parts of a subaqueous fan. Glaciolacustrine and glaciodeltaic deposits locally reach ˜50–70 m in thickness. Analyses of A–E complexes indicate that the lake existed for more than 130 years and that its origin and evolution were closely connected with the ice front. This case study records lake sedimentation at an ice‐sheet margin with cohesionless gravity flows, turbidity currents, debris‐avalanching and, to a much lesser degree, parapelagic suspension fall‐out and ice‐raft dumping. In the initial stage, the lake extended more than 10 km to the south, and the deposition was relatively slow. In the second stage, recession of the ice sheet caused rapid growth of a delta. The third and ultimate stage coincided with the final glacial recession, with rapid deposition occurring only on the lake bottom. The model of the glaciolacustrine environment presented here may also be applicable to many other proglacial lakes in mountain areas.

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confidence: 99%

The Middle Pleistocene glaciolacustrine environment of an ice‐dammed mountain valley, Sudeten Mountains, Poland

Krzyszkowski

Krzywicka

Wachecka-Kotkowska

et al. 2019

Boreas

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“…The new, revised maximum Saalian ice sheet limit is (from west to east): northern edge of the Sudetes (Krzyszkowski et al, 2019), Moravian Gate (Břizová, 1994), northern slopes of the South Polish Uplands (Terpiłowski et al, 2014;Marks et al, 2018;Czubla et al, 2019). The study area was located north of the maximum limit of the Saalian (Odranian) ice sheet.…”

Section: Discussionmentioning

confidence: 99%

Studia Quaternaria

Krzyszkowski,

Wachecka-Kotkowska,

Nita

et al. 2020

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The article presents results of research of three sections (Kuców 9, 10 and 16). Two of them record fluvial and lacustrine interglacial sediments and the third, cold-stage glaciolacustrine sediments. They were formed inside the Miocene– Pliocene syncline depressions in a central part of the southern horst within the Kleszczów Graben. Fluvial and lacustrine deposits of the Middle Pleistocene Interglacial (Mazovian or Ferdynandovian in the Czyżów Formation) are described from the Kuców 9 and 10 sections. Their sediments are located in marginal parts of a buried river valley and within an oxbow palaeolake, then covered by glaciofluvial deposits of the Ławki (Early Saalian) and Rogowiec (Late Saalian) Formations. The Kuców 16 section comprises ice-dam sandy lithofacies (Kuców Formation, Elsterian) of a marginal part in a proglacial lake. Two pollen diagrams of K65/15 and Kuców 9 sections represent the Mazovian (Holsteinian) succession, although in the Kuców 9 section some features are typical for the Ferdinandovian succession.

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“…The Mokrzeszów gravel pit deposits probably represent the Kończyce Formation (Figs. 2, 3) (Krzyszkowski et al 2019a(Krzyszkowski et al , 2020.…”

Section: Regional Settingmentioning

confidence: 99%

“…No delta bottom-set sediments in the form of varved clays are observed at Mokrzeszów, as is the case at many similar sites in the Sudetes (Krzyszkowski et al 2019b). The analysis of numerous borehole sections from the vicinity of Mokrzeszów, in the Świdnica Plain, and in the Subsudetic Depression (Niedzielski & Migoń 2005, Krzyszkowski et al 2019a permits the conclusion that the ice-dammed lake deposits of bottom facies from the period of the ice sheet advance during the Odranian glaciation are relatively widely distributed in this area. They occur in many places on the ground surface or under a thin layer of glacial tills.…”

Section: Paleogeographic Interpretationmentioning

confidence: 99%

“…The fluvial provenance of the fan is supported by the strata pattern characteristic of a piedmont, river rather than a lacustrine environment (Krzyszkowski et al 2019a). The weakness of this scenario is the multiplicity of deformation structures of different orientations which could theoretically be related to the SMF edge and the ice-sheet wall of the newly formed fan (Salamon 2009) or to neotectonic processes (Štěpančíková et al 2010(Štěpančíková et al , 2022(Štěpančíková et al , Novakova 2015.…”

Section: Paleogeographic Interpretationmentioning

confidence: 99%

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An examination of the glaciomarginal fan of the Odranian glaciation at the Mokrzeszów site, Sudetic Foreland, SW Poland

Krzyszkowski

Wachecka-Kotkowska

Skurzyński

2022

geol

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The article presents the results of research from the Mokrzeszów site in the Sudetic Foreland. Lithopetrographic and sedimentological analyses of sediments from the Middle Polish Glaciations (Early Saalian, Odranian, MIS6) in this area indicate the overrepresentation (90–95%) of large Scandinavian erratics. The deposits, representing a repetitive sequence of Gp-Gms-Sp-Sh/Sr(Dmm) lithofacies, accumulated during at least two episodes of glacial outburst floods and six sedimentary cycles. High-energy flows are estimated for the Gms and Gp facies at about 5 m∙s−1 and low-energy flows indicate 0.8 m∙s−1 for the Sp/Sh/Sr facies, to the lack of flow (Fm). The sedimentary sequences confirm the existence of a fan, which may have originated as a subaqueous steep coarse-grained fan in glacial-flow-lake-outburst floods that formed between the ice sheet front and the morphotectonic edge of the Sudetic Marginal Fault line and within the Roztoka-Mokrzeszów Graben, or as an aerial, piedmont fan on the Sudetic Marginal Fault edge. The sediments show discontinuous deformations – gently sloping faults and fractures from glacioisostatic stresses. The fault activity is probably related to the reactivation of the faults due to ice loading during or after the older Saalian glaciation.

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The rare Holsteinian (Mazovian) interglacial limnic deposits in the Książnica outcrop at Krzczonów (near Świdnica), Sudetic Foreland

Cited by 5 publications

References 66 publications

The Middle Pleistocene glaciolacustrine environment of an ice‐dammed mountain valley, Sudeten Mountains, Poland

The Middle Pleistocene glaciolacustrine environment of an ice‐dammed mountain valley, Sudeten Mountains, Poland

Studia Quaternaria

An examination of the glaciomarginal fan of the Odranian glaciation at the Mokrzeszów site, Sudetic Foreland, SW Poland

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