The standard section of Neogene deposits from Eastern Pomerania at Łęczyce near Lębork (Northern Poland)
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2015, Vol 461, Issue 461
Abstract
The reported study focused on a complex analysis of Paleogene–Neogene section located at Łęczyce near Lębork (Eastern Pomerania). The lower part of the section is represented by Lower Oligocene to Miocene deposits, drilled by the Łęczyce-Tr well to the depth of 110 m. Its upper part consists of the Late Neogene succession exposed in the slope of the Reda–Łeba palaeovalley just above the drill top. Both core and outcrop sections were sampled for analyses of grain size and composition (133 samples), carbonate content (122 samples), heavy mineral composition (41 samples), and spore-pollen and phytoplankton assemblages (39 samples). For the first time in the Eastern Pomerania, a succession of the standard Lower Oligocene to Pliocene formations has been identified in this section including the Oligocene to Miocene deposits represented by the Lower Mosina Fm., Czempin Fm., Upper Mosina Fm. (Lower Oligocene), Gorzów Fm. and Krajenka Fm. (Lower/ Middle Miocene) and Adamów Fm. (Middle Miocene). Outcrop of the Pliocene deposits (unique in the area), being an equivalent of the Poznań Fm., were described. All the distinguished units were correlated with corresponding sections from the north-eastern Poland and the Sambia Peninsula. The study results have enabled to reconstruct the sedimentary conditions and depositional environments, as well as the succession of floral communities that record the paleoclimatic changes. The Łęczyce section, comprising the Lower Oligocene to Pliocene deposits, is a representative section of the Paleogene–Neogene succession for the whole area of Eastern Pomerania.
Authors and Affiliations
Regina KRAMARSKA, Jacek KASIŃSKI, Grzegorz CZAPOWSKI, Marcin PIWOCKI, Barbara SŁODKOWSKA
Keywords
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