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    Wyświetlanie 1-4 z 4
    Tytuł:
    Znaczenie warunków geologicznych i geomorfologicznych dla rozwoju i współczesnego stanu torfowisk Niecki Nidziańskiej
    Significance of geological and geomorphological conditions for development and the contemporary state of peatlands in the Nida Basin
    Autorzy:
    Okupny, Daniel
    Jucha, Witold
    Powiązania:
    https://bibliotekanauki.pl/articles/2076049.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    złoża biogeniczne
    geomorfometria
    torfowisko
    torfowiska żródliskowe
    Niecka Nidziańska
    biogenic deposits
    geomorphometry
    peatland
    spring-fed fen
    Nida Basin
    Opis:
    Significance of geological and geomorphological conditions for development and the contemporary state of peatlands in the Nida Basin. Prz. Geol., 68:135-144; doi: 10.7306/2020.6 Abstract. Synthetic studies of biogenic deposits made on a regional scale reveal how the geological structure and land relief have been affecting the development of limnic and peat sediments. The research was made in the Nida Basin, which is the region of great diversity of natural landscape in southern Poland and has a relatively large area of peatlands. The conclusions have been based on SRTM interpretation, hydrogeological documentations of deposits near Busko-Zdrój, and field and laboratory works. The spring-fed fen at Zwierzyniec, along with the fen at Mikulowice, has been forming on the densest complexes of alkaline fens in the Małopolska Upland. The calcareous tufa includes records of chemical denudation occurring in the southern part of the Pińczów Hump in the Late Weichselian and Holocene.
    Źródło:
    Przegląd Geologiczny; 2020, 68, 2; 135--144
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The relationship between the chemical composition and lithology of Late Glacial and Holocene biogenic deposits of the Żabieniec mire (Central Poland)
    Autorzy:
    Okupny, Daniel
    Borówka, Ryszard Krzysztof
    Forysiak, Jacek
    Twardy, Juliusz
    Kloss, Marek
    Żurek, Sławomir
    Powiązania:
    https://bibliotekanauki.pl/articles/2058726.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    kettle hole
    limnogenic mire
    geochemistry
    macrofossils
    denudation
    Central Poland
    Opis:
    Geochemical and plant macrofossil analyses of the Żabieniec mire deposits and the palaeoenvironmental changes they record of the past several thousand years constitute an important source for palaeogeographical reconstruction of the Polish Lowland. We describe the phases of the basin’s development from the final part of the Plenivistulian (MIS2), through the Late Glacial and the entire Holocene, encompassing changes determined by both regional and global factors in the surrounding environment, and habitat transformations in the limnogenic mire. The kettle-hole infill of the Żabieniec mire is the only documented example in Central Poland of a succession of biogenic deposits exceeding 10 m in thickness in such a setting. Deposition initially took place in a lake environment, which led to a shallowing of the lake that persisted until the end of the Mesoholocene.
    Źródło:
    Geological Quarterly; 2021, 65, 1; 11
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reconstruction of atmospheric lead and heavy metal pollution in the Otrębowskie Brzegi peatland (S Poland)
    Autorzy:
    Pawełczyk, Fatima
    Bloom, Karolina
    Jucha, Witold
    Michczyński, Adam
    Okupny, Daniel
    Sikorski, Jarosław
    Tomkowiak, Julita
    Zając, Ewelina
    Fagel, Nathalie
    Powiązania:
    https://bibliotekanauki.pl/articles/2058587.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Pb isotopes
    pollution
    elemental record
    human activity
    14C dating
    210Pb dating
    palynological analysis
    Opis:
    We reconstruct palaeoenvironmental changes since the Late Holocene in the Orava-Nowy Targ Basin, with an emphasis on anthropogenic influence (Walker et al., 2018). This reconstruction employs multiproxy analyses of the Otrębowskie Brzegi poor fen. We combined radiocarbon and 210Pb dating with elemental geochemistry, stable lead isotopes, and palaeobotanical analyses. The core we investigated covers a period from 4200 ± 100 BC to the present, with a peat accumulation rate varying between 0.001 and 0.243 cm y-1. Heavy metal concentrations, Pb isotopic ratios, and a palynological analysis revealed a significant impact of human activities in the past. The highest concentration and accumulation rate of Pb, were found around 1950 AD. The 206Pb/207Pb quotient ranged between 1.168 and 1.223, with average value around 1.198. Most of the interpretation was based on Pb and its stable isotopes; however, other elements were also important indicators of natural and anthropogenic environmental changes. Our results revealed similarities between the geochemical composition of the peatland studied and other peatlands from the Orava-Nowy Targ Basin.
    Źródło:
    Geological Quarterly; 2019, 63, 3; 568--585
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in habitat conditions in a Late Glacial fluviogenic lake in response to climatic fluctuations (Warta River valley, central Poland)
    Autorzy:
    Forysiak, Jacek
    Okupny, Daniel
    Obremska, Milena
    Antczak-Orlewska, Olga
    Płóciennik, Mateusz
    Pawłowski, Dominik
    Baradyn, Daria
    Kotrys, Bartosz
    Luoto, Tomi P.
    Nevalainen, Liisa
    Borówka, Ryszard K.
    Powiązania:
    https://bibliotekanauki.pl/articles/13955341.pdf
    Data publikacji:
    2023
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    multi-proxy analysis
    Late Weichselian
    denudation processes
    palaeoclimate
    central European river
    Opis:
    The Warta River valley was greatly influenced by the ice sheet of the Last Glacial Maximum (LGM). A small peatland located in the Warta drainage system is here used as a palaeoarchive of climatic and habitat changes during the Late Glacial (Weichselian). The Ługi sediment profile was investigated using multi-proxy (pollen, Chironomidae, Cladocera and geochemistry) analyses that recorded changes in a fluviogenic sedimentary depression. After the Poznań Phase (LGM), Ługi functioned as an oxbow lake that was cut off from the active river channel as a result of fluvial erosion. Since that time, the Warta River has flowed only along the section now occupied by the Jeziorsko Reservoir. Sedimentation of lacustrine deposits started at the beginning of the Late Glacial. Summer temperature reconstructions indicate cool Oldest and Younger Dryas, but no clear cooling in the Older Dryas. During the Younger Dryas the palaeolake was completely occupied by a peatland (fen), which periodically dried out during the Holocene. Investigation of this site has tracked the reaction of the habitat to climatic, hydrological and geomorphological changes throughout the Late Weichselian.
    Źródło:
    Geological Quarterly; 2023, 67, 1; art. no. 1
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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