Home

ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND

Repository of Nicolaus Copernicus University

Show simple item record

dc.contributor.author Rychel, Joanna
dc.contributor.author Woronko, Barbara
dc.contributor.author Karasiewicz, Mirosław T.
dc.contributor.author Szymczuk, Paweł
dc.contributor.author Morawski, Marcin
dc.date.accessioned 2017-11-26T10:46:04Z
dc.date.available 2017-11-26T10:46:04Z
dc.date.issued 2017-11-26
dc.identifier.issn 1641-5558
dc.identifier.issn 1641-5558
dc.identifier.uri http://repozytorium.umk.pl/handle/item/4726
dc.description.abstract 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.
dc.description.sponsorship NCN (umowa no. UMO-2013/09/B/ST10/02118)
dc.language.iso eng
dc.relation.ispartofseries Studia Quaternaria;
dc.rights info:eu-repo/semantics/openAccess
dc.subject ice lobe
dc.subject marginal zone
dc.subject glaciotectonic disturbances
dc.subject thrust-block push moraines
dc.subject morpholineaments
dc.title ICE-SHEET DYNAMICS OF WARTA GLACIATION (SAALE) IN THE MARGINAL ZONE OF KNYSZEWICZE AREA, NORTHEASTERN POLAND
dc.type info:eu-repo/semantics/article


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search repository



Advanced Search

Browse

My Account

Statistics

Informations