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Wyszukujesz frazę "MIS 5" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Facies and fauna proxies to reconstruct the MIS 5 and MIS 7 coastal environments in Eastern Tunisia
    Autorzy:
    Chakroun, A.
    Zaghbib-Turki, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060334.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    MIS 5
    MIS 7
    Tunisia
    malacofauna
    paleoecology
    Persististrombus latus
    paleoclimate
    Opis:
    This study is based on the analysis of the sedimentology and the fossil assemblages of the Pleistocene deposits in Eastern Tunisia. It aims to establish the different fauna assemblages in order to highlight their paleoenvironments and discuss the importance of the Persististrombus latus distribution especially in the MIS 5e deposits around the Mediterranean Basin. The stratigraphic succession has been divided into two main units. The lower unit is quartz-rich sediment. Its lower marine term revealed well preserved species (Bivalves, Gastropods, Echinoids and Scirripedia) dominated by Acanthocardia, Cerastoderma, Parvicardium, Arca, Donax, Glycymeris, Loripes, Tellina and Cerithium. This fauna is representative of a typical association/biocenosis which may be developed in a sheltered bay, where the hydrodynamism is regularly moderate to low and/or quickly post-mortem buried. The upper unit is carbonated. Its basal term is also rich marine fauna which contains the extant tropical West African species Persististrombus latus. The occurrence of Persististrombus latus in this unit compared to its presence in the whole Mediterranean basin in the Late Pleistocene leads to question its importance in the interpretation of the climate warming during the Late Pleistocene, and to suggest its Atlantic origin.
    Źródło:
    Geological Quarterly; 2017, 61, 1; 186--204
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeobotanical record of the Eemian Interglacial succession at the Jagodne site (Garwolin Plain, central Poland)
    Autorzy:
    Bober, Aleksandra
    Brzozowicz, Dorota
    Drzymulska, Danuta
    Żarski, Marcin
    Suchora, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/2059599.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Eemian Interglacial
    MIS-5e
    Garwolin Plain
    central Poland
    palynology
    plant macrofossils
    Opis:
    Our high-resolution data of pollen and macrofossils from 2 cores taken from the Jagodne site (Garwolin Plain) reveals a pollen succession covering the final part of the Late Saalian (Marine Isotope Stage MIS 6) and embracing the Eemian (MIS 5e). The results correspond to Regional Pollen Assemblage Zones (RPAZ). The hornbeam phase (E5 RPAZ) has been subdivided into subzones and compared to the corresponding division of the key profile of the Garwolin Plain, Kozłów K2-19. The comparison revealed a considerable sedimentary hiatus in the E5 RPAZ at Jagodne. This is attributed to significant palaeohydrological changes occurring widely in this zone, and also seen at other Eemian sites in Poland. Another specific feature of the Jagodne site is the early, rapid terrestrialisation of the palaeolake and its transformation into a raised bog, which occurred already at the end of the hornbeam phase. The Sphagnum dominated peatbog developed for a long time as evidenced by a thick peat layer covering also the Early Vistulian. Both pollen and plant macrofossil data correspond well to observed lithological boundaries, providing a consistent record of palaeoenvironmental and palaeoclimate changes. The results obtained contribute to knowledge of palaeoenvironmental changes and palaeoclimate interpretation of that area.
    Źródło:
    Geological Quarterly; 2021, 65, 2; 65: 34
    1641-7291
    Pojawia się w:
    Geological Quarterly
    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 1-3 z 3

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