How to resolve Pleistocene stratigraphic problems by different methods? A case study from eastern Poland
PBN-AR
Instytucja
Wydział Nauk Geograficznych i Geologicznych (Uniwersytet im. Adama Mickiewicza w Poznaniu)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
GEOLOGICAL QUARTERLY
ISSN
1641-7291
EISSN
Wydawca
POLISH GEOLOGICAL INSTITUTE - NATIONAL RESEARCH INSTITUTE
DOI
Rok publikacji
2014
Numer zeszytu
2
Strony od-do
235-250
Numer tomu
58
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
en
chronostratigraphy
geochronology
interglacial meandering river
Pleistocene
Mazovian/Holsteinian
eastern Poland
Streszczenia
Język
en
Treść
Different methods have been used to determine the stratigraphic position of Pleistocene alluvial deposits, particularly fluvial interglacial deposits. Near-surface deposits of a meandering river, developed in point-bar and oxbow lake facies, in the Samica River valley (near £uków, eastern Poland) have been investigated. The fossil valley is incised into the till plain and the outwash. The fluvial succession is locally overlain by solifluction deposits. All the deposits underwent sedimentological analysis. The petrographic composition of basal till occurring in the vicinity of a fossil valley was determined with the method of indicator erratics. Fluvial deposits were examined by pollen analysis and plant macrofossil analysis of oxbow lake facies. Absolute dating methods were applied to the deposits (thermoluminescence methods: TL and additionally IRSL). Lithological differences between fluvial and the surrounding glaciofluvial deposits were identified and their lithostratigraphic position assigned. Petrographic analysis of till and palaeobotanical analyses of oxbow lakefacies gave compatible results. Fluvial deposits were formed after the Sanian 2/Elsterian Glaciation, during the Mazovian/Holsteinian Interglacial. Luminescence dating of the fluvial deposits by the TLMAX method yielded the most relevant results (412–445 ka), which indicate that these deposits were formed during the end of the MIS 12 and beginning of the MIS 11 stage.
Cechy publikacji
Geologia
Geology
discipline:Geografia
discipline:Geologia
discipline:Geography
discipline:Geology
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:671515
CrossrefMetadata from Crossref logo
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