ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND
The paper presents a research on a marginal zone near Knyszewicze in the southern part of Sokółka Hills (northeastern Poland). Terminal moraine hills arearranged amphitheatrically in a lobal pattern. Dynamics of the Knyszewicze frontal ice-sheet lobe during the Saale Glaciation and successive stages...
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ftunivtorunir:oai:repozytorium.umk.pl:item/4726 2023-05-15T16:37:25+02:00 ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND Rychel, Joanna Woronko, Barbara Karasiewicz, Mirosław T. Szymczuk, Paweł Morawski, Marcin 2017-11-26 http://repozytorium.umk.pl/handle/item/4726 eng eng Studia Quaternaria; 1641-5558 http://repozytorium.umk.pl/handle/item/4726 info:eu-repo/semantics/openAccess ice lobe marginal zone glaciotectonic disturbances thrust-block push moraines morpholineaments info:eu-repo/semantics/article 2017 ftunivtorunir 2022-02-22T17:32:10Z The paper presents a research on a marginal zone near Knyszewicze in the southern part of Sokółka Hills (northeastern Poland). Terminal moraine hills arearranged amphitheatrically in a lobal pattern. Dynamics of the Knyszewicze frontal ice-sheet lobe during the Saale Glaciation and successive stages of the marginal zone near the village of Knyszewicze were reconstructed based on sedimentary and geomorphological analysis, using a digital elevation model and morpholineaments. Three main phases of the Knyszewicze glacial-lobe activity were identified including accumulation of glaciofluvial deposits, advances of the ice margin and ice-lobe retreat. Moraine hills developed at a stable ice-lobe terminus, initially as short end-moraine fans with the fol low ing se quence of lithofacies Gh-SGh-Sh or Gm-Gh-Sh. Such a sequence indicates cyclic sheet-floods. During a small but dynamic advance of the ice sheet terminus, these depos its were moved for ward and monoclinally folded, then furrowed with sloping faults due to horizontal pressure. Typ i cal thrust-block push moraines developed in this way. Ice sheet advance took place when permafrost was present in the substratum and very high water pressure occurred at glacial terminus. Inside a lobal configuration of moraines, there is a rich inventory of glacial forms with a classic terminal depression in the central part. Based on this landform pattern, their shape, rhythm and glaciotectonic disturbances, the land relief may be referred to as a hill-hole pair. The structure of Horczaki Knoll, deposited on the sub-Quaternary tectonic structure, significantly contributed to a development of this marginal zone. Article in Journal/Newspaper Ice Ice Sheet permafrost Nicolaus Copernicus University (UMK) Torun: RUM@K |
institution |
Open Polar |
collection |
Nicolaus Copernicus University (UMK) Torun: RUM@K |
op_collection_id |
ftunivtorunir |
language |
English |
topic |
ice lobe marginal zone glaciotectonic disturbances thrust-block push moraines morpholineaments |
spellingShingle |
ice lobe marginal zone glaciotectonic disturbances thrust-block push moraines morpholineaments Rychel, Joanna Woronko, Barbara Karasiewicz, Mirosław T. Szymczuk, Paweł Morawski, Marcin ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND |
topic_facet |
ice lobe marginal zone glaciotectonic disturbances thrust-block push moraines morpholineaments |
description |
The paper presents a research on a marginal zone near Knyszewicze in the southern part of Sokółka Hills (northeastern Poland). Terminal moraine hills arearranged amphitheatrically in a lobal pattern. Dynamics of the Knyszewicze frontal ice-sheet lobe during the Saale Glaciation and successive stages of the marginal zone near the village of Knyszewicze were reconstructed based on sedimentary and geomorphological analysis, using a digital elevation model and morpholineaments. Three main phases of the Knyszewicze glacial-lobe activity were identified including accumulation of glaciofluvial deposits, advances of the ice margin and ice-lobe retreat. Moraine hills developed at a stable ice-lobe terminus, initially as short end-moraine fans with the fol low ing se quence of lithofacies Gh-SGh-Sh or Gm-Gh-Sh. Such a sequence indicates cyclic sheet-floods. During a small but dynamic advance of the ice sheet terminus, these depos its were moved for ward and monoclinally folded, then furrowed with sloping faults due to horizontal pressure. Typ i cal thrust-block push moraines developed in this way. Ice sheet advance took place when permafrost was present in the substratum and very high water pressure occurred at glacial terminus. Inside a lobal configuration of moraines, there is a rich inventory of glacial forms with a classic terminal depression in the central part. Based on this landform pattern, their shape, rhythm and glaciotectonic disturbances, the land relief may be referred to as a hill-hole pair. The structure of Horczaki Knoll, deposited on the sub-Quaternary tectonic structure, significantly contributed to a development of this marginal zone. |
format |
Article in Journal/Newspaper |
author |
Rychel, Joanna Woronko, Barbara Karasiewicz, Mirosław T. Szymczuk, Paweł Morawski, Marcin |
author_facet |
Rychel, Joanna Woronko, Barbara Karasiewicz, Mirosław T. Szymczuk, Paweł Morawski, Marcin |
author_sort |
Rychel, Joanna |
title |
ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND |
title_short |
ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND |
title_full |
ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND |
title_fullStr |
ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND |
title_full_unstemmed |
ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND |
title_sort |
ice-sheet dynamics of warta glaciation (saale) in the marginal zone of knyszewicze area, northeastern poland |
publishDate |
2017 |
url |
http://repozytorium.umk.pl/handle/item/4726 |
genre |
Ice Ice Sheet permafrost |
genre_facet |
Ice Ice Sheet permafrost |
op_relation |
Studia Quaternaria; 1641-5558 http://repozytorium.umk.pl/handle/item/4726 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766027715232661504 |