Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings

This paper presents the results of new studies of Saalian tills, from the Ławki and Rogowiec formations, filling the Kleszczów Graben. The study area is located in the Szczerców outcrop, Bełchatów Lignite Opencast Mine, central Poland. Laboratory studies included macrofossil analysis of the deposits...

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Autores principales:	Wachecka-Kotkowska Lucyna, Krzyszkowski Dariusz, Wieczorek Dariusz, Boswell Steven, Myśkow Elżbieta
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	pleistocene saalian stratigraphy glacial tills petrography neodymium isotope szczerców outcrop central poland Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/e7a06d93f3b64d3783bd67541111d84b
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spelling	oai:doaj.org-article:e7a06d93f3b64d3783bd67541111d84b2021-12-05T14:10:48ZLithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings2391-544710.1515/geo-2020-0186https://doaj.org/article/e7a06d93f3b64d3783bd67541111d84b2021-01-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0186https://doaj.org/toc/2391-5447This paper presents the results of new studies of Saalian tills, from the Ławki and Rogowiec formations, filling the Kleszczów Graben. The study area is located in the Szczerców outcrop, Bełchatów Lignite Opencast Mine, central Poland. Laboratory studies included macrofossil analysis of the deposits, as well as petrographic and geochemical (neodymium isotope ratio) measurements. The studies were carried out in 2014–2016 and resulted in both establishing the sedimentary Saalian complex and constructing geological cross-sections and a synthetic lithostratigraphic profile. Development of sediments in this part of the Kleszczów Graben in the Pleistocene was largely influenced by tectonic factors (Chabielice fault, Dębina Salt Dome) and glacitectonic processes (Wartanian Glaciation). The Saalian tills (T4 – Ławki and T7 – Rogowiec lithotypes) are between the Holsteinian sand with macroremnants of trees and the Eemian gyttja and peat. Petrographic coefficients for lithotype T4 (Ławki Formation) are 1.33–1.06–1.01 and 0.12 and for lithotype T7 (Rogowiec Formation) are 1.29–1.23–1.04 and 0.12. Investigations of the Nd isotopic compositions of the studied samples reinforce our interpretations of till deformation and tentative lithostratigraphic correlations. Neodymium isotope ratios “P” (−14.4 ± 0.7) and “D” (−12.4 ± 0.3) ε Nd values (2σ) correspond to mean signatures of Saalian glacigenic moraine sediment. This proves that ε Nd values less than −12.4 reflect the southern Fennoscandian Ice Sheet sediment provenance, but ε Nd values greater than −12.4 indicate the western European origin.Wachecka-Kotkowska LucynaKrzyszkowski DariuszWieczorek DariuszBoswell StevenMyśkow ElżbietaDe Gruyterarticlepleistocenesaalianstratigraphyglacial tillspetrographyneodymium isotopeszczerców outcropcentral polandGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 001-015 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pleistocene saalian stratigraphy glacial tills petrography neodymium isotope szczerców outcrop central poland Geology QE1-996.5
spellingShingle	pleistocene saalian stratigraphy glacial tills petrography neodymium isotope szczerców outcrop central poland Geology QE1-996.5 Wachecka-Kotkowska Lucyna Krzyszkowski Dariusz Wieczorek Dariusz Boswell Steven Myśkow Elżbieta Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings
description	This paper presents the results of new studies of Saalian tills, from the Ławki and Rogowiec formations, filling the Kleszczów Graben. The study area is located in the Szczerców outcrop, Bełchatów Lignite Opencast Mine, central Poland. Laboratory studies included macrofossil analysis of the deposits, as well as petrographic and geochemical (neodymium isotope ratio) measurements. The studies were carried out in 2014–2016 and resulted in both establishing the sedimentary Saalian complex and constructing geological cross-sections and a synthetic lithostratigraphic profile. Development of sediments in this part of the Kleszczów Graben in the Pleistocene was largely influenced by tectonic factors (Chabielice fault, Dębina Salt Dome) and glacitectonic processes (Wartanian Glaciation). The Saalian tills (T4 – Ławki and T7 – Rogowiec lithotypes) are between the Holsteinian sand with macroremnants of trees and the Eemian gyttja and peat. Petrographic coefficients for lithotype T4 (Ławki Formation) are 1.33–1.06–1.01 and 0.12 and for lithotype T7 (Rogowiec Formation) are 1.29–1.23–1.04 and 0.12. Investigations of the Nd isotopic compositions of the studied samples reinforce our interpretations of till deformation and tentative lithostratigraphic correlations. Neodymium isotope ratios “P” (−14.4 ± 0.7) and “D” (−12.4 ± 0.3) ε Nd values (2σ) correspond to mean signatures of Saalian glacigenic moraine sediment. This proves that ε Nd values less than −12.4 reflect the southern Fennoscandian Ice Sheet sediment provenance, but ε Nd values greater than −12.4 indicate the western European origin.
format	article
author	Wachecka-Kotkowska Lucyna Krzyszkowski Dariusz Wieczorek Dariusz Boswell Steven Myśkow Elżbieta
author_facet	Wachecka-Kotkowska Lucyna Krzyszkowski Dariusz Wieczorek Dariusz Boswell Steven Myśkow Elżbieta
author_sort	Wachecka-Kotkowska Lucyna
title	Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings
title_short	Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings
title_full	Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings
title_fullStr	Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings
title_full_unstemmed	Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings
title_sort	lithopetrographic and geochemical features of the saalian tills in the szczerców outcrop (poland) in various deformation settings
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/e7a06d93f3b64d3783bd67541111d84b
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Lithopetrographic and geochemical features of the Saalian tills in the Szczerców outcrop (Poland) in various deformation settings

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