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The relation between optical bleaching and sedimentological features of fluvial deposits in the Toruń Basin (Poland)

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dc.contributor.author Weckwerth, Piotr
dc.contributor.author Przegiętka, Krzysztof
dc.contributor.author Chruścińska, Alicja
dc.contributor.author Pisarska-Jamroży, Małgorzata
dc.date.accessioned 2014-02-08T17:54:28Z
dc.date.available 2014-02-08T17:54:28Z
dc.date.issued 2013-02-26
dc.identifier.citation Geological Quarterly vol. 57 (1), 2013, pp. 31–44.
dc.identifier.issn 1641-7291
dc.identifier.uri http://repozytorium.umk.pl/handle/item/1676
dc.description.abstract Distributions of equivalent doses (DE) obtained by the Single Aliquot Regenerative-dose (SAR) OSL method applied for large aliquots of coarse quartz grains extracted from fluvial sediments are presented and analysed with respect to a fluvial palaeoenvironment. The Nowe Dąbie and Łochowo fluvial succession from the western part of Toruń Basin (eastern part of Noteć–Warta streamway, Torun-Eberswalde ice-mar ginal valley) was analysed. The fluvial depositional conditions controlling the extent of daylight bleaching are reconstructed by sedimentological studies. The relation between the amount of bleaching and sedimentological properties of fluvial deposits indicate that ripple cross-laminated sands that accumulated on the floodplain and horizontally-bedded sands deposited in shallow channels are more appropriate for OSL dating than sands derived from the deep channel. Along with luminescence results obtained for the river deposits, data measured from an ancient pottery sample, en suring complete reset of the OSL signal, are presented, compared to and discussed. On this base the poorly bleached sediment samples are identified and an adjustment factor is introduced for correcting their OSL dating results in order to avoid age inversion. The application of the adjustment factor is found to minimize overestimation of OSL ages of sediments.
dc.language.iso eng
dc.publisher Panstwowy Instytut Geologiczny
dc.rights Attribution-NonCommercial-NoDerivs 3.0 Poland
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/pl/
dc.subject Interdisciplinary Research
dc.subject Luminescence Dating
dc.subject Optically Stimulated Luminescence
dc.subject Quartz
dc.subject Quaternary Geochronology
dc.subject Sedimentology
dc.subject Partial Bleaching
dc.subject sand-bed braided river
dc.subject ice-marginal streamway / valley
dc.subject OSL age inversion
dc.title The relation between optical bleaching and sedimentological features of fluvial deposits in the Toruń Basin (Poland)
dc.type info:eu-repo/semantics/article


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