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    Wyświetlanie 1-7 z 7
    Tytuł:
    Wstępna analiza kręgów kamiennych w Borach Tucholskich
    Preliminary analysis of the stone circles in Bory Tucholskie
    Autorzy:
    Ruszkowski, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/2076210.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Odra
    Leśno
    kamienne kręgi
    stela
    Bory Tucholskie
    Odry
    stone circles
    stele
    Opis:
    According to the definition, stone circles are structures made of vertically arranged blocks and stone boulders forming circles. Such structures are found mainly in Central and Northern Europe. They are also found in Africa and the Middle East, and single circles have been recorded in remote regions of Siberia. The largest clusters of this type of structures are located in northern Poland and southern Scandinavia. This article describes the preliminary results of field works at the Odry and Leśno sites. The result of the research work was the first discovery of the image of a human on the central stone in the circle number V in Odry. It is the first discovery of this type in northern Poland.
    Źródło:
    Przegląd Geologiczny; 2021, 69, 2; 100--102
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zawartość metali ciężkich (Cu, Zn, Pb, w wybranych elementach ekosystemu estuarium Odry Co, Cd, Hg)
    The contents of heavy metals (Cu, Zn, Pb, Co, Cd, Hg) accumulated in selected components of the Odra River Estuary ecosystem
    Autorzy:
    Piotrowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074530.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    metale ciężkie
    osady denne
    mięczaki
    ujście rzeki Odry
    heavy metals
    bottom sediments
    molluscs
    Odra River estuary
    Opis:
    The content of Cu, Zn, Pb, Co, Cd and Hg accumulated in water, mollusc shells and 15-cm layer of bottom sediments in Lake D1bie, Domi1?a and Roztoka Odrzanska is analysed. The metal concentrations range from 99.82 to 99.88% in bottom sediments, from 0.09 to 0.16% in water and from 0.01 to 0.04% in shells. There is some diversity in distribution of heavy metals in bottom sediments of the study areas due to diversity of heavy metal concentrations in the Odra River Estuary. The metal successions in mollusc shells of the three areas under consideration are identical: Zn > Cu > Pb > Cd > Hg. The distribution of metals in water and mollusc shells indicates greater concentrations of metals in molluscs. In particular, when considering the mass ratio, the water mass is greater than the mass of shells, varying from 3100 (Lake Dąbie) to 20000 (Domiąża). The content of metals in the shells ranges from 7.33% to 22.39% of their total amount in the analysed ecosystems.
    Źródło:
    Przegląd Geologiczny; 2007, 55, 6; 213-218
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drenaż subglacjalny i jego wpływ na dynamikę lobu Odry zlodowacenia wisły
    Subglacial drainage and its influence on the dynamics of the Weichselian Odra lobe
    Autorzy:
    Hermanowski, P.
    Piotrowski, J. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074717.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    drenaż subglacjalny
    lob Odry
    dynamika ruchu lodowca
    zlodowacenia Wisły
    subglacial drainage
    Odra lobe
    groundwater
    ice movement dynamics
    Weichselian glaciation
    Opis:
    In this paper we have analyzed the influence of the Weichselian ice sheet advance on the groundwater system in the Odra lobe area using hydrogeological numerical modelling performed with the finite difference method. The results indicate entire re-organization of the groundwater system in relation to non-glacial times mainly affecting the flow directions, velocities and fluxes. The re-organization of groundwater flow was caused by the pressure gradient imposed by the sloping ice sheet surface especially obvious under the ice margin and some distance in front of it. Simulated groundwater flow velocities are significantly higher than the present velocities in that area while the major groundwater flow direction is to the south, i.e. opposite to the present direction. Coupling the simulation results with assumed basal melting rate suggests that only a small fraction of basal meltwater [~24%) could have drained through the bed. The surplus water likely accumulated at the ice/bed interface facilitating faster ice flow of the Odra lobe due to enhanced basal sliding and bed deformation.
    Źródło:
    Przegląd Geologiczny; 2009, 57, 6; 504-512
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Próba rekonstrukcji geometrii lądolodu zlodowacenia Odry w północnej częoeci Wyżyny Krakowsko-Częstochowskiej
    Preliminary reconstruction of geometry of the ice sheet of the Odra glaciation in northern part of the Cracow–Częstochowa Upland
    Autorzy:
    Knopik, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074873.pdf
    Data publikacji:
    2011
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    zlodowacenie Odry
    rekonstrukcji geometrii lądolodu zlodowacenia
    podłoże czwartorzędu
    Odra glaciation
    reconstruction of the geometry of the ice sheet
    Quaternary substratum
    Opis:
    During the Pleistocene, the Cracow-Częstochowa Upland was covered by the Scandinavian ice sheets two times, which was stated already at the beginning of the twentieth century. The Odra glaciation had probably the biggest impact on the relief of this area . The geometry of this part of the ice sheet was reconstructed on the basis of the analysis of the sub-Quaternary morphology and location of the glacial tills. The modeling of thickness of the ice sheet during the odra glaciations shows, that it was small (110–350 m) in the northern part of the analyzed area. Longitudinal profiles of the ice sheet are fairly gentle, which is typical for glaciers with high activity.
    Źródło:
    Przegląd Geologiczny; 2011, 59, 6; 474-478
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rekonstrukcja kierunków ruchu lodu w obrębie lobu górnej Odry
    Reconstruction of the ice-flow directions within the Upper Odra Lobe (S Poland)
    Autorzy:
    Salamon, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074907.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    ice sheet lobe
    ice movement direction
    Upper Odra Lobe
    Odranian glaciation
    lob lądolodu
    kierunek ruchu lodu
    lob górnej Odry
    zlodowacenie Odry
    Opis:
    The Upper Odra Lobe - the southernmost part of the Scandinavian ice sheet during the Odranian (Drenthe) glaciation - was formed in the area of the Niemodlin Plain and the western part of the Racibórz Basin. It created a complex structure consisting of several sublobes: Odra, Nysa, Ruda and Klodnica sublobes. The study focused on the basal till deposited during ice sheet advance. Ice flow directions and the general pattern ofice mass distribution in the Upper Odra Lobe were defined based on the clast fabric. The resulting distribution of ice-flow palaeodirections suggest that the Upper Odra Lobe was formed by the mass of ice moving divergently from the Opole Plain located to the north of the Racibórz Basin. Ice-flow lines coincide with the pattern of major geomorphological units. The most intensive movement of the ice took place in the depression of the central part of the Silesian Lowland. From there, in the vicinity of the Niemodlin Plain, the ice sheet moved in different directions, forming smaller sublobes in several valleys. Strong relationship between the ice flow directions and morphology confirms the idea of a smaller ice sheet extent in the Racibórz Basin and Moravian Gate. Highly concentrated flow of ice in the back-lobe area, interpreted in this study, suggests that the lobe development resulted not only from the ice sheet adapting to the basement relief, but was also conditioned by a spatially varying distribution of ice, i.e. increased ice supply to the Niemodlin Plain and the western part ofthe Racibórz Basin.
    Źródło:
    Przegląd Geologiczny; 2012, 60, 10; 539--545
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Subglacjalne pochodzenie przełomowych dolin zachodniej części progu środkowotriasowego i ciągu pagórów okolic Gogolina
    Subglacial origin of gorge valleys in western part of the Middle Triassic Ridge and the row of the hills near the Gogolin
    Autorzy:
    Salamon, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074686.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    rynna subglacjalna
    żwiry polodowcowe
    przełomowe doliny Odry
    próg środkowotriasowy
    tunnel channel
    eskers
    subglacial drainage
    gorge valley of the Odra River
    Middle Triassic Ridge
    Opis:
    The western part of the Middle Triassic Ridge is cut by two narrow gorges. At present the Odra River is running through the western gorge in the vicinity of Krapkowice and a small stream, right-bank tributary of this river, through the eastern one, passing 1–2 km to the east of the former. These erosive forms were hitherto interpreted as epigenetic gorges of the Odra. A row of elongated hills built of gravel and sands is found at southeasterly prologation of the eastern erosive gorge. The field study carried out at a site located at one of these hills indicates direct connections and subglacial origin of these erosive forms and hills. Most probably the eastern gorge represents a fragment of a subglacial tunnel valley, which continues northwards into the zone of the present-day Odra channel. The hills located at prolongation of the gorges are interpreted as eskers. Because of the high similarity, the western gorge valley is most probably also of subglacial origin. The studied part of the subglacial drainage system most probably originated in result of an outburst flood of subglacial water temporarily stored at the bottom of the ice-sheet. The tunnel valley and eskars were formed during Odranian glaciation.
    Źródło:
    Przegląd Geologiczny; 2009, 57, 3; 243-251
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Możliwość rozróżnienia małży i ślimaków słodkowodnych na podstawie koncentracji metali ciężkich w tkankach miękkich i muszlach
    A possibility of making a distinction between freshwater bivalves and snails on the basis of concentration of heavy metals in soft tissues and shells
    Autorzy:
    Piotrowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075610.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Ujście rzeki Odry
    jeziora Pomorza Zachodniego
    Polska
    mięczaki słodkowodne
    tkanki miękkie
    muszle
    woda
    osad denny
    metale ciężkie
    Odra river estuary
    lakes of Western Pomerania
    Polska
    freshwater molluscs
    soft tissues
    shells
    water
    bottom sediment
    heavy metals
    Opis:
    The study involved 17 species of freshwater molluscs. The concentration of heavy metals (Cu, Zn, Pb, Co, Cd andHg) in soft tissues was determinedfor 14 species, while the concentration of heavy metals in shells was determinedfor 16 species. Totally, 110 samples of soft tissue and 119 samples of shells were analysed. The statistical analysis of the qualitative data concerning concentration of metals in shells indicated a clear distinction between snails and bivalves. The only exception is Unio crassus, which was assigned to a three-point cluster together with snails. With respect to snails, this may be because the analysis was performed only on one sample. The results of this study can be significant both for palaeontological research and palaeoenvironmental research. If we have a few shell fragments available, it can be generally concluded, based on geochemical analysis of heavy metals in shells, which shell fragments belong to bivalves and which to snails. It is also possible to assess geochemical conditions of ancient ecosystems. Obviously, the given results are preliminary and they suggest necessity of further research.
    Źródło:
    Przegląd Geologiczny; 2017, 65, 6; 400--404
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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