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    Wyświetlanie 1-2 z 2
    Tytuł:
    Ewolucja środowisk depozycyjnych ordowiku łysogórskiego w Górach Świętokrzyskich na tle krzywej eustatycznej Bałtyki
    Evolution of sedimentary environments in the Ordovician of the Łysogóry Region (northern Holy Cross Mts., Poland) in relation to the sea-level curve for Baltica
    Autorzy:
    Trela, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074646.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    ordowik
    formacje sedymentacyjne
    zmiany poziomu morza
    Góry Świętokrzyskie
    Ordovician
    sedimentary record
    sea-level changes
    Holy Cross Mountains
    Opis:
    In Ordovician times the Łysogóry Region (northern Holy Cross Mts.) was located in the marginal part of Baltica, thus, the sea-level history reconstructed for this palaeocontinent appears to be a good background for discussing relationships between sea-level changes and the studied sedimentary record. However, some stratigraphic gaps, e.g. in the Lower and Middle Ordovician parts of the considered succession are probably due to regional tectonic activity. The upper Middle and Upper Ordovician sedimentary facies of the Łysogóry Region show good correlation with the Late Llanvirn-Caradoc Highstand Interval followed by the Ashgill Lowstand Interval in Baltica (Nielsen, 2004). The most conspicuous facies changes in the Ordovician of the considered region seem to be coeval with 3rd order eustatic events recognized on the sea-level curve from Baltoscandia.
    Źródło:
    Przegląd Geologiczny; 2009, 57, 10; 900-904
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vistulian periglacial and glacial environments in central Poland : an overview
    Autorzy:
    Dzieduszyńska, Danuta
    Petera-Zganiacz, Joanna
    Roman, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/2058551.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    sedimentary record
    cold-related conditions
    last glacial event
    MIS 5d-a-MIS 2
    Late Pleistocene
    Central European Lowland
    Opis:
    Vistulian climatic changes are recorded in various sedimentary environments of central Poland, both in the extraglacial zone of the last glaciation and also in the area occupied by the last Scandinavian Ice Sheet, being reflected by palaeobotanical, palaeozoological, sedimentological and geochronological data. The most pronounced morphogenetic processes are linked to a glacial succession in the northern part of the study area, referred to the Upper Plenivistulian. For most of the study area, located in the extraglacial zone, the climatic changes are reconstructed from lake-bog, fluvial, slope and aeolian sedimentary successions. In central Poland, no site has been documented so far where there would be a continuous biogenic record through the whole Vistulian. Environmental changes recorded through the Vistulian include temperature, vegetation and the dynamics of morphogenetic processes, and sedimentary environments most useful for assessing changes occurring at that time may be indicated. The Early Vistulian is best recognized within biogenic deposits, as in the older part of Plenivistulian. The conditions in the earlier part of the Plenivistulian are best reported from fluvial and slope deposits with evidence of permafrost and of glacial conditions, though only in the northern part of the study area. Changing conditions of the Late Vistulian are expressed via well-documented morphogenetic processes occurring in all (except glacial) sedimentary environments, lake-bog and aeolian environments providing the most complete information about the nature of this period. Most of the Vistulian deposits reflect cold periods. There is a distinctive increase in periglacial impacts throughout the Plenivistulian with the apogee during the Upper Plenivistulian and interstadial warmings did not influence this trend. Each sedimentary environment provides significant data about the climate evolution, and processes playing a leading role vary according to the Vistulian stratigraphic unit. The consolidation of findings from regional research has provided new directions for further interdisciplinary studies.
    Źródło:
    Geological Quarterly; 2020, 64, 1; 54--73
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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