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Plant macrofossils from the Czyżów Complex deposits of the Szczerców outcrop, central Poland

Myśkow E., Krzyszkowski D., Wachecka-Kotkowska L., Wieczorek D.

Geology, Geophysics and Environment

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2016

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Vol. 42, no. 3

325--336

EN

The paper presents the results of research into the plant macrofossils found in the tectonic Kleszczów Graben, within Mesopleistocene sandy sediments. A number of samples were collected at eight locations from river sediments containing variously sized fragments of plants, mostly from greenish sands overlying Neogene sediments. The structural characteristics of the sediments show a cyclic record of the formation of point bars, their washing out at supercritical conditions, and their aggradation by fine-grained material during flow waning. Based on lithological and structural studies, it has been demonstrated that the sands accumulated in an environment of a meandering river, whose valley bottom was covered with fairly dense vegetation, inhibiting the influx of mineral material to the floodplain from the surroundings – the valley or glacial plateau slopes. The aim of further analysis was to identify the plant genera of the individual macrofossils (about 40 specimens). The most numerous macrofossils were observed in the middle layers of the profile, within sandy megaripple structures, where mostly fragments of Fraxinus and Acer wood were present. In other layers, several fragments of Pinus and three pieces of Populus wood were identified. Additionally, young stems of dicotyledonous plants and fragments of rhytidome (the outer bark of a tree) were found. The results are discussed in combination with considerations on the deposition of the Czyżów Complex in the Bełchatów outcrop, and on the occurrence of local flora.

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Zanieczyszczenie metalami śladowymi osadów powodziowych w 2010 roku na środkowym odcinku rzeki Odry. Cz. II

Ibragimow A., Szymura P., Mirosława Malinowska- Limanówka, Walna B.

Laboratorium - Przegląd Ogólnopolski

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2012

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nr 9-10

94--97

PL

W pracy przeanalizowano zmiany zawartości całkowitych (mineralizacja w HNO3) oraz aktualnie (ekstrakcja 0,01 M CaCl2) i potencjalnie dostępnych frakcji (ekstrakcja 0,1 M HCl) kadmu, chromu, miedzi, niklu, ołowiu i cynku w osadach fluwialnych środkowego odcinka rzeki Odry przed powodzią w 2009 r. i po powodzi w 2010 r. Ponadto badano wartości parametrów fizyczno-chemicznych próbek oraz zależność pomiędzy nimi a zawartościami badanych metali.

EN

In this study changes of the total (mineralized in HNO3), actual available (0.05M CaCl2 extractable) and potential available (0.1M HCl extractable) concentrations of cadmium, chromium, copper, nickel, lead and zinc in fluvial sediments of the Middle Odra River before the flood in 2009 and after the fl ood in 2010 were analyzed. The physico-chemical properties of sediments and their relationships with trace metal concentrations were also investigated.

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Zanieczyszczenie metalami śladowymi osadów powodziowych w 2010 roku na środkowym odcinku rzeki Odry. Cz. 1

Ibragimow A., Walna B.

Laboratorium - Przegląd Ogólnopolski

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2012

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nr 7-8

75--78

PL

W artykule przeanalizowano wartości całkowite (mineralizacja HNO3) kadmu, chromu, miedzi, niklu, ołowiu i cynku w osadach fluwialnych środkowego odcinka rzeki Odry po powodzi w 2010 r. Próbki pobierano z warstwy powierzchniowej (0-3 cm) pomiędzy 585 a 609 km biegu rzeki. Oceny zanieczyszczenia na obszarze badań dokonano na podstawie wartości indeksu geokumulacji (Igeo). Ponadto oznaczono podstawowe parametry fizyczno-chemiczne osadów i ich wpływ na zawartość metali śladowych.

EN

In this study total (mineralized HNO3) concentrations of cadmium, chromium, copper, nickel, lead and zinc were analyzed in fluvial sediments of the Middle Odra River after the flood in 2010. The sediment samples were collected from surface layer (0-3 cm) between 585th and 609th km of the river course. To calculate the pollution level in study area geoaccumulation index (Igeo) were estimated. Also the physico-chemical properties of sediments were investigated and their influence on the trace metals concentrations.

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Fluwialna geneza ogniwa wielkopolskiego na podstawie danych z obszaru środkowej Polski

Widera M.

Górnictwo Odkrywkowe

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2012

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R. 53, nr 1-2

109-118

PL

Osady drobnoklastyczne zalegające w stropie neogenu na Niżu Polskim nie mają wyjaśnionej genezy. Osady te są bardzo ważną kopaliną, często towarzyszącą wydobyciu węgla brunatnego. Wśród badaczy istnieją różne hipotezy na temat ich powstania, często wzajemnie wykluczające się, tj. jeziorna, morska i rzeczna, albo ich kombinacje. Na podstawie danych otworowych z okolic Poznania oraz obserwacji ścian odkrywek w KWB Konin dostarczono dowodów potwierdzających rzeczne pochodzenie osadów ogniwa wielkopolskiego. Ponadto wskazano na anastomozujący typ rzek, które doprowadziły do powstania izolowanych litosomów piaszczystych w otoczeniu osadów iłowo-mułowych.

EN

Fine-grained sediments rested at the top of Neogene in the Polish Lowlands until now have not explained the origin. Be-cause they are very important minerals, often accompanied by lignite mining, certainly require further research. Among resear-chers, there are various hypotheses about their origin, often mutually exclusive, i.e. a lake, sea and evidence of the fluvial origin of the Wielkopolska. Member has been provided. Additionally, it has been indicated the anastomosing type of rivers that led to the of solated sandy bodies, which are surrounded by clayey-silty sediments.

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Zmienność zawartości metali śladowych w osadach fluwial-nych środkowego odcinka rzeki Odry po powodzi w 2010 r.

Ibragimow M., Walna B.

Ekologia i Technika

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2012

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R. 20, nr 4

227-237

PL

Podczas powodzi osady rzeczne, które stanowią miejsce kumulacji metali śladowych, depono-wane są na terasach zalewowych. W konsekwencji dodatkowy ładunek metali śladowych może zostać wprowadzony do osadów fluwialnych. W artykule przeanalizowano zawartości całkowite (mineralizowane HNO3) oraz formy aktualnie dostępne (ekstrahowane 0,01M CaC12) kadmu, chromu, miedzi, niklu, ołowiu i cynku w osadach fluwialnych środkowego odcinka rzeki Odry po powodzi w 2010 r. Próbki pobierano z warstwy powierzchniowej (0-30 cm) i podpowierzchniowej (30-60 cm) wzdłuż czterech transektów różniących się pod względem szerokości (od 44 m do 360 m). Ponadto oznaczono podstawowe parametry fizyczno-chemiczne osadów oraz ich wpływ na zawartość metali śladowych.

EN

During the flooding events. river sediments. which often act like a sink for trace metals, are deposited on the floodplain. Consequently an extra load of metal content may be added to the fluvial sediments. In this study total (mineralized in HNO), actual available (0.01M CaCl2 extractable) concentrations of cadmium, chromium, copper, nickel, lead and zinc were analyzed in fluvial sediments of the Middle Odra River after the flood iii 2010. The sediment. samples were collected from surface (0-30 cm) and subsurface (30-60 cm) along four cross-sections characterized by different width (between 44 m and 360 m). Also the physico-chemical properties of sediments were investigated and their influence on trace metals concentrations.

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Optical dating of sediments in Khari River basin and slip rate along Katrol Hill Fault (KHF), Kachchh, India

Kundu H. K., Thakkar M. G., Biswas R. H.

Geochronometria

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2010

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Vol. 37

21-28

EN

In the central region of Mainland Kachchh, Western India, the Katrol Hill Fault (KHF) is one of the major E-W trending faults. An understanding of the episodes of reactivation during the past has a bearing on the future seismicity in the region. These reactivations are manifested by offset of elevation of fluvial sediments and scarp-derived colluvium in the Khari River basin, SE of Bharasar (23°11'36.5"N, 69°35'22.6"E). Stratigraphic offsets of the sediments at this site suggest three episodes of reactivation of the KHF during the late Quaternary. Optical dating of samples from sediment strata and top layer of scarp-derived colluvium using Natural Sensitivity Corrected – Single Aliquot Regenerative (NCF-SAR) protocol suggested that these events occurred during the past ~30 ka, with the most recent historic episode around 3.0 ka. Given that a part of the slip recorded in the form of sediments offset, was lost due to erosion after faulting, a lower bound to the time averaged slip rate of the segment of KHF, is inferred to be > 0.23 mm/a during the past 30 ka.

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Methodological aspects on luminescence dating of fluvial sands from the Moselle basin, Luxembourg

Cordier S., Frechen M., Tsukamoto S.

Geochronometria

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2010

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Vol. 35

67-74

EN

Optically stimulated luminescence (OSL) dating of quartz and infrared-stimulated luminescence (IRSL) dating of feldspar were applied to fluvial sands from the lower terrace (M1) of the Moselle valley in Luxembourg (western Europe). The dating results indicated that the aggradation period for the sediments from below the M1 alluvial terrace can be correlated to the Weichselian upper Pleniglacial (MIS 2), which is in good agreement with the general chronostratigraphy of the Moselle terrace staircase. The ages were obtained from small aliquots of quartz and feldspars, using the single aliquot regenerative (SAR) protocol. The equivalent dose determination included a series of tests and the selection of the Minimum Age Model as the most appropriate statistical model. This made it possible to provide a reliable methodological background for further luminescence dating of fluvial sediments from the Moselle basin.

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Chronology of Cauvery delta sediments from shallow subsurface cores using elevated-temperature post-IR IRSL dating of feldspar

Alappat L., Tsukamoto S., Singh P., Srikanth D., Ramesh R., Frechen M.

Geochronometria

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2010

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Vol. 37

37-47

EN

We present the results of luminescence dating of sediments from two cores from the Cauvery Delta in south-east India. Since all natural quartz OSL signals except one sample were in saturation, the elevated temperature post-IR IRSL protocol for K-feldspar was applied to establish a chronology. Internal dose rates of K-feldspar grains were calculated from the measured internal content of potassium, uranium, thorium and rubidium in the bulk of K-feldspar grains using solution ICP-OES and ICP-MS analysis. A substantial scatter in single-aliquot De values was observed which is most probably due to the effect of incomplete bleaching of fluvial sediments before burial. A minimum age model was applied to extract possible depositional ages. The study revealed that except an upper layer of Holocene sediments (< 5m), the majority of the upper ~50m of Cauvery delta sediments were deposited between marine isotope stage MIS-5 and MIS-10 or older. The feldspar luminescence ages also indicate the existence of a period of non deposition or erosion in the upper part of the cores.

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Late Pleistocene evolution of hydrographical network recorded at geosites in the Middle Neman area (western Belarus)

Pavlovskaya I. E.

Polish Geological Institute Special Papers

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2004

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Vol. 13

167-174

EN

Geosites in the Belarussian part of the Middle Neman area contain a rich information on sedimentary environments and development of hydrographical network within the drainage basin of Neman – one of the largest rivers of central Europe. A study of sediment successions of the best stratigraphically defined sites has revealed the general features of prevailing sedimentary environments existed in the Late Pleistocene. An occurrence of interglacial sediments of lake origin of the Muravian (Eemian) Interglacial together with the absence of synchronous fluvial records has led to the conclusion that no large water stream was developed within the present Neman valley in the Late Pleistocene Interglacial. A basin sedimentation prevailed there since the Muravian Interglacial (lake sedimentation) including the Poozerie (Weichselian) Glaciation (ice-dammed lake sedimentation) till the Late Glacial. The actual Neman watercourse was formed during the final phases of the last glaciation and the Late Glacial.

PL

Geostanowiska położone w białoruskiej części środkowego Niemna zawierają obszerną informację o środowiskach sedymentacyjnych oraz rozwoju sieci hydrograficznej w obrębie zlewni Niemna - jednej z wielkich rzek Europy centralnej. Badania sukcesji sedymentacyjnych w stanowiskach z jednoznaczną pozycją stratygraficzną ujawniły główne cechy środowisk sedymentacyjnych późnego plejstocenu. Rozprzestrzenienie osadów pochodzenia jeziornego z okresu interglacjału murawińskiego (emskiego) oraz brak równowiekowych osadów rzecznych dowodzi, że na miejscu współczesnej doliny Niemna w okresie ostatniego interglacjału plejstocenu nie istniała żadna duża arteria wodna. Sedymentacja zbiornikowa przeważała w rejonie środkowego Niemna od początku interglacjału murawińskiego (sedymentacja jeziorna), w okresie zlodowacenia pojezierskiego (sedymentacja zastoiskowa) do okresu późnego glacjału. Współczesny kierunek przepływu Niemna został ukszałtowany w czasie końcowych faz ostatniego zlodowacenia i w późnym glacjale.

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Evolution of the Late Neogene and Eopleistocene fluvial system in the foreland of the Sudetes Mountains, SW Poland

Badura J., Przybylski B.

Annales Societatis Geologorum Poloniae

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2004

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Vol. 74, No 1

43--61

EN

The oldest Cainozoic fluvial deposits in Lower Silesia date from the Oligocene. During the Middle and Late Miocene times, the fluvial system of this region was only slightly modified, especially in the foreland of the West and Middle Sudetes Mts. River lengths changed, following the migration of the North Sea shorelines. A rapid rebuilding of the fluvial system took place in the foreland of the East Sudetes Mts. either in the Late or Middle Miocene. Till that time, the main river valley of this region - the Nysa Kłodzka River, related to the Paczków and Kędzierzyn Grabens - used to flow towards the East, to a bay of the Paratethys sea. The new main river, pre-Odra, started to flow towards the North not before the Grodków Graben cut meridionally the Meta-Carpathian Swell. We are of the opinion that deposits of the Poznań Formation originated in an fluvial environment because no marine and/or limnic deposits have hitherto been discovered in the area of Lower Silesia above the uppermost of the Middle-Polish lignite seams (Henryk). The pre-Odra River drained the eastern part of Lower Silesia, and flowed towards the North, at least to the Poznań region. This main river captured such smaller rivers, as: the pre-Vistula, pre-Olza, pre-Ostravica, pre-Opava, pre-Nysa Kłodzka, and pre-Bystrzyca. Rivers draining the West Sudetes Mts. flowed first towards the North, to the region of the present-day Middle Odra River, and there turned to the West. It is conceivable that these rivers curved westwards just along the line of the present-day Wrocław - Magdeburg marginal stream valley ("Pradolina"). Since the Pliocene, the Sudetic rivers have started to transport coarser, sandy, and even gravelly material to a more distant foreland. Alluvial deposits of this phase occur exclusively on uplands. Coarse-grained sediments recognized in the bottom of deep erosional incisions were redeposited under subglacial conditions during the Mesopleistocene glaciations. The presented new interpretation of origin of the Poznań Formation basin and detailed recognition of Pliocene and Eopleistocene river system should initiate a new line of research into the Late Neogene and Eopleistocene sediments.