Sedimentary succession and stages of development of the Gostynin esker, Kutno Plain, central Poland

Well-developed N-S trending esker, described in literature as the Gostynin esker, consists of parallel ridges associated witch a tunnel valey flanked by the Vistulian (Weichselian) till plain. The sedimentary succession of one of the ridges is known in the Osada site. Complexity of the esker interna...

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Bibliographic Details
Published in:Annales Universitatis Mariae Curie-Sklodowska, sectio B – Geographia, Geologia, Mineralogia et Petrographia
Main Author: Roman, Małgorzata
Format: Article in Journal/Newspaper
Language:Polish
Published: www.wydawnictwo.umcs.lublin.pl 2017
Subjects:
esker
facies analysis
sedimentary environment
subglacial tunnel
ice-open channel
Late Vistulian ice sheet margin
central Poland
oz
analiza litofacjalna
środowisko sedymentacji
tunel subglacjalny
otwarta szczelina
lądolód późnego Vistulianu
centralna Polska
Polska
Ice Sheet
Online Access:https://journals.umcs.pl/b/article/view/3623
https://doi.org/10.17951/b.2016.71.1.9
Description
Summary:Well-developed N-S trending esker, described in literature as the Gostynin esker, consists of parallel ridges associated witch a tunnel valey flanked by the Vistulian (Weichselian) till plain. The sedimentary succession of one of the ridges is known in the Osada site. Complexity of the esker internal structure is expressed by 4 sedimentary units of different environments. The lowest, coarsegravelly (O1), developed by infilling a subglacial tunnel. The following one, making the main part of the esker ridge, is a sandy unit (O2) deposited in an ice-walled open channel. Locally, the deposits show normal synsedimentary faults. The O3 unit of fine-grained sediments was laid in a stagnant water. The succession is topped by a thin discontinous layer of flow till (O4). Sedimentation took place when the ice-sheet changed its dynamics from active to stagnant. Artykuł nie zawiera streszczenia w języku polski.

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