Petrographic composition and directional properties of tills on the NW surroundings of the Gdánsk Bay, Nothern Poland

In this paper, the authors focus on some selected lithological properties of tills: petrographic composition of the 5-10 mm fraction, petrographic composition of the coarse fraction ( > 20 mm, analysed by the indicator erratics method) and the long axis orientation of clasts. As the study area th...

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Bibliographic Details
Published in:Geologija
Main Authors: Woźniak, Piotr Paweł, Czubla, Piotr, Wysiecka, Graźyna, Drapella, Małgorzata
Format: Article in Journal/Newspaper
Language:Lithuanian
English
Published: 2009
Subjects:
Till
Petrographic analysis
Till fabric
Weathering
Vistulian
Pomerania
Poland
Ice Sheet
Online Access:http://lmavb.lvb.lt/LMAVB:ELABAPDB5850880&prefLang=en_US
Description
Summary:In this paper, the authors focus on some selected lithological properties of tills: petrographic composition of the 5-10 mm fraction, petrographic composition of the coarse fraction ( > 20 mm, analysed by the indicator erratics method) and the long axis orientation of clasts. As the study area the authors chose a territory located in Northern Poland on the NW surroundings of the Gdańsk Bay - between Puck and Lake Žarnowieckie. It was found that during the Last Glaciiation the study region was fed mainly from the territory of Sweden, middle and south-eastern Sweden in particular. There existed, in parallel with the dominant (in the study region) NNW ice-sheet advance direction, also another, local ice-sheet advance route manifested in the east, which deposited a till bed in the neighbourhood of Puck.

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