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

• 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

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.