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    Wyświetlanie 1-3 z 3
    Tytuł:
    Palaeovegetation of europe during the Bolling-Allerod interstadial complex warming (12.4-10.9 ka BP)
    Autorzy:
    Simakova, A. N.
    Puzachenko, A. Yu.
    Powiązania:
    https://bibliotekanauki.pl/articles/1186067.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    pollen data
    palaeovegetation
    Bolling-Allerod interstadial complex
    Europe
    Opis:
    The available pollen data on 186 sites (896 samples) of the Bolling-Allerod interstadial complex (12.4-10.9 ka) were summarised and entered in the electronic database. Results of the classification of sections with palynological data were analysed in the GIS. Based on the species composition and diversity of plants, as well as peculiarities of their ranges, we can establish the palaeovegetation coenoses during the latest interstadial warming of the final stages of the Late Pleniglacial.
    Źródło:
    Polish Geological Institute Special Papers; 2005, 16; 116--122
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Early Vistulian climate oscillations in the light of pollen analysis of deposits from Dziadowa Kłoda (Silesian Lowland, Poland)
    Autorzy:
    Kuszell, T.
    Chmal, R.
    Słychan, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059521.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Silesian Lowland
    Eemian Interglacial
    Early Vistulian
    Brörup Interstadial
    climate oscillations
    palynology
    Opis:
    The stratigraphy and palaeogeography of Quaternary deposits under lying the Oleoenica Plain were investigated during mapping of the Syców sheet of the De tailed Geo logical Map of Poland on the scale of 1:50 000. The Oleoenica Plain is part of the southern foreland of the Trzebnica Ridge, the latter representing a frontal moraine of the South and Middle Polish Glaciations. Neopleistocene deposits found at the Dziadowa Kłoda site were analyzed for their pollen content. These lacus trine to swamp deposits represent a continuous and undisturbed sequence spanning the Eemian Interglacial to Brörup Interstadial interval. The Early Vistulian deposits have been the subject of detailed palynological investigations. The reconstructed pattern of vegetation changes has allowed a precise determination of the upper boundary of the last interglacial as well as the recognition of stadial-interstadial horizons. Three climatic oscillations have been noted, corresponding to the Herning and Rederstallstadials and the Brörup Interstadial. In the climatic optimum of the interstadial, dense boreal pine-birch forests accompanied by a minor admixture of alder and spruce were predominant. Cold stadials were dominated by open vegetation with tundra and steppe elements.The pollen sequence from Dziadowa Kłoda is the first site on the Silesian Lowland that shows the first fully developed Early Vistulian warm oscillation that correlates with the Brörup Interstadial. A distinctive feature of this site is a long, continuous pollen sequence of the Eemian passing into deposits of the Vistulian Glaciation in the same profile.
    Źródło:
    Geological Quarterly; 2007, 51, 3; 319-328
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Middle pleistocene stratigraphy in the light of data from the vilkiskes site, eastern Lithuania
    Autorzy:
    Satkunas, J.
    Molodkov, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1186131.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    lacustrine sedimentation
    sandy deposits
    OSL dating
    Drenthe-Warthe Interstadial
    Vilkiskes ice free interval
    Quaternary
    eastern Lithuania
    Opis:
    The Vilkiskes outcrop is approximately 40 metres high section of Quaternary sandy sediments, exposed in the slope of the Neris River valley and is located 15 km upstream from the city of Vilnius. The section is composed mainly of sand with one till layer in the middle part. The outcrop is of particular interest due to typical section of sandy formation presumably of lacustrine origin, occurring under the till. This formation is widely distributed in the vast area in between Vilnius city and Nemencine town, according to the data of geological mapping, and represents a particular period of nonglacial sedimentation of Saalian time. The new optically stimulated luminescence (OSL) dates (determined by A. Molodkov), obtained from the Vilkiskes section, fall into the time span of 307-230 and 147-137 ka. The age of the lower part of Vilkiskes lacustrine section (dated 307-230 ka by OSL) looks closest to the two ice free stages, which can be correlated with oxygen isotope stages (OIS) 7 (236-186 ka) and OIS 9 (328-301 ka). Ages of about 147.1 and 136.7 ka are obtained near the immediate contact with the underlying glacial lithocomplex. Assuming OSL ages, conditions of occurrence and palaeopalynological characteristics, the interval of the Vilkiskes outcrop with OSL dates falling into the time span 236-186 ka (OIS 7) can be introduced as the last Middle Pleistocene (Drenthe-Warthe) ice free interval in Lithuania, most probably, separating the Zemaitija and Medininkai stadials. The interval dated 147.1 and 136.7 ka is interpreted as the Pamarys Interstadial that tentatively can be correlated with the Zeifen Interstadial in the Kattegat Depression suggesting the existence of a ?Younger Dryas?-type climate oscillation just prior to the OIS 6/5e boundary.
    Źródło:
    Polish Geological Institute Special Papers; 2005, 16; 94--102
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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