Kame or moraine? A sedimentological study of a glaciomarginal landform at Niedźwiedziny (Great Polish Lowland)

• Autorzy: Ewert-Krzemieniewska A.

Identyfikatory

DOI

10.2478/logos-2014-0013

• Języki publikacji: EN

Abstrakty

EN

A sedimentary succession in a gravel pit at Niedźwiedziny was investigated in order to determine its origin: kame or moraine. The gravel pit is located in an isolated hill of approx. 600 m long and 250–400 m wide. The succession is built of glaciofluvial deposits: a sandy/gravelly unit in the lower and middle parts, overlain by diamicton. Five lithofacies have been distinguished, which represent two facies associations: (1) a fluvial association evolving from a high-energy to a transitional to a shallow braided river on an alluvial fan, and (2) an association of cohesive deposits representing a glacigenic mass flow. The interpretation is based mainly on palaeocurrent data and differs from conclusions by earlier investigators. The ice-marginal zone is characterised by a large variety of glaciomarginal forms. Their sedimentology, morphology and palaeogeography are determined by successive phases of deglaciation. The results of the present study show that the character of the deglaciation in the study area changed with time from frontal to areal deglaciation.

Słowa kluczowe

EN

sedimentology; glaciomarginal zone; kame; Weichselian; Middle Poland

PL

sedymentologia; strefa glacimarginalna; kem; Środkowa Polska

• Wydawca: Uniwersytet im. Adama Mickiewicza. Instytut Geologii
• Czasopismo: Geologos
• Rocznik: 2014
• Tom: Vol. 20, No. 3
• Strony: 167--181
• Opis fizyczny: Bibliogr. 32 poz.

Twórcy

autor

Ewert-Krzemieniewska A.

• Institute of Geoecology and Geoinformation, Adam Mickiewicz University, Dzięgielowa 27, 61-680 Poznań, Poland

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