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    Wyświetlanie 1-10 z 10
    Tytuł:
    How to resolve Pleistocene stratigraphic problems by different methods? A case study from eastern Poland
    Autorzy:
    Terpiłowski, S.
    Zieliński, T.
    Kusiak, J.
    Pidek, I.A.
    Czubla, P.
    Hrynowiecka, A.
    Godlewska, A.
    Zieliński, P.
    Małek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059725.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    chronostratigraphy
    geochronology
    interglacial meandering river
    Pleistocene
    Mazovian/Holsteinian
    Eastern Poland
    Opis:
    Different methods have been used to determine the stratigraphic position of Pleistocene alluvial deposits, particularly fluvial interglacial deposits. Near-surface deposits of a meandering river, developed in point-bar and oxbow lake facies, in the Samica River valley (near Łuków, eastern Poland) have been investigated. The fossil valley is incised into the till plain and the outwash. The fluvial succession is locally overlain by solifluction deposits. All the deposits underwent sedimentological analysis. The petrographic composition of basal till occurring in the vicinity of a fossil valley was determined with the method of indicator erratics. Fluvial deposits were examined by pollen analysis and plant macrofossil analysis of oxbow lake facies. Absolute dating methods were applied to the deposits (thermoluminescence methods: TL and additionally IRSL). Lithological differences between fluvial and the surrounding glaciofluvial deposits were identified and their lithostratigraphic position assigned. Petrographic analysis of till and palaeobotanical analyses of oxbow lake facies gave compatible results. Fluvial deposits were formed after the Sanian 2/Elsterian Glaciation, during the Mazovian/Holsteinian Interglacial. Luminescence dating of the fluvial deposits by the TLMAX method yielded the most relevant results (412-445 ka), which indicate that these deposits were formed during the end of the MIS 12 and beginning of the MIS 11 stage.
    Źródło:
    Geological Quarterly; 2014, 58, 2; 235--250
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Environmental changes of the Mazovian (Holsteinian /~MIS 11) palaeolake near Szymanowo (eastern Poland) in the light of malacological analysis
    Autorzy:
    Szymanek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/138661.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    molluscs
    Palaeolakes
    Mazovian (Holsteinian) Interglacial
    palaeoecology
    mięczaki
    paleojeziora
    interglacjał mazowiecki
    paleoekologia
    Opis:
    The malacofauna of the palaeolake deposits at Szymanowo (eastern Poland) was investigated. It represents the younger part of the climatic optimum of the Mazovian (Holsteinian) Interglacial (~MIS 11) and possibly the postoptimal period. The mollusc assemblage is composed of both standing and running water species, mostly connected with temperate climate. The presence of biostratigraphical indicators of the Mazovian, Viviparus diluvianus (Kunth, 1865), Lithoglyphus jahni Urbański, 1975 and Pisidium clessini Neumayr, 1875, is noteworthy. Variability in the structure and composition of the assemblage enables palaeoecological reconstruction. Changes in the water-level, vegetation and energy conditions are inferred from the malacological succession. Three stages of the lake development were distinguished. The first one is connected with deeper conditions and predominance of V. diluvianus and L. jahni. The second one, dominated by Bithynia tentaculata (Linnaeus, 1758), records a fall of the water-level and the growth of aquatic plants, evidenced by high frequencies of Valvata cristata Müller, 1774 and Acroloxus lacustris (Linnaeus, 1758). The third stage corresponds to another rise of the water-level and an increase in V. diluvianus, L. jahni, Valvata piscinalis Müller, 1774 and Pisidium henslowanum (Sheppard, 1823), which evidence some higher energy conditions.
    Źródło:
    Acta Geologica Polonica; 2014, 64, 2; 249-260
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Malacofauna of the Holsteinian lake deposits at Hrud II (Eastern Poland) and its palaeoecological significance
    Autorzy:
    Szymanek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058942.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Quaternary
    Holsteinian
    lake deposits
    molluscs
    palaeoenvironment
    Opis:
    Mollusc-bearing deposits at Hrud II (Eastern Poland) accumulated in the western part of a palaeolake of Holsteinian age (MIS 11). The faunal assemblage is typical of freshwater environments and presumably represents a part of the interglacial climatic optimum (Carpinus–Abies Zone). On the basis of its varied composition, the evolution of the water body is described. Reinterpretation of the data from the eastern part of the lake (Hrud I) and combining of the results from both sites enable a wider palaeoecological reconstruction. Fluctuations in lake level, water dynamics and changes in the aquatic vegetation are inferred from quantitative relations between selected molluscs, especially Lithoglyphus jahni, Valvata piscinalis and Bithynia tentaculata, which prevail in the deposits investigated. A predominance of Valvata piscinalis indicates a rise in water level, whereas the communities with abundant Bithynia opercula are typical of a more shallow lake with rich reed fields. Amelioration of the trophic conditions between the pre-optimal and optimal part of the Holsteinian Interglacial can also be recognised.
    Źródło:
    Geological Quarterly; 2012, 56, 1; 117-126
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeoecology of the Holsteinian lake in vicinity of Wilczyn (eastern Poland) based on molluscan studies
    Autorzy:
    Szymanek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060329.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    palaeoecology
    molluscs
    Holsteinian
    lacustrine sediments
    Opis:
    Malacological studies of two profiles of the Holsteinian (Mazovian) Interglacial from eastern Poland – Roskosz and Wilczyn 1/12 – are presented. They are connected with the northern part of the Wilczyn palaeolake and seems to document palaeoecological changes in the part of the climatic optimum and the post-optimal period. Mollusc communities are typical of lake environs. The latter is supported by biometry of Pisidium moitessierianum. Higher energy conditions are evidenced by rheophile species P. henslowanum and P. nitidum in the lowermost part of the Roskosz section. Mollusc assemblages with Lithoglyphus jahni, with Valvata piscinalis and Bithynia tentaculata as well as with Valvata piscinalis are distinguished at Roskosz. They record changes in aquatic vegetation and depth conditions. Malacofauna from Wilczyn 1/12 is dominated by V. piscinalis, V. piscinalis f. antiqua and B. tentaculata. Limited contribution of temperate gastropods Viviparus diluvianus and L. jahni as well as the occurrence of some cold-loving forms indicate a deterioration of thermal conditions. Shallow-water habitats and expansion of reed zones are inferred from proportions of Bithynia shells and opercula.
    Źródło:
    Geological Quarterly; 2013, 57, 4; 637--648
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeotemperature estimation in the Holsteinian Interglacial (MIS 11) based on oxygen isotopes of aquatic gastropods from eastern Poland
    Autorzy:
    Szymanek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/138759.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    oxygen isotopes
    molluscs
    palaeotemperatures
    thermometry equation
    Holsteinian interglacial
    eastern Poland
    izotopy tlenu
    mięczaki
    paleotemperatury
    termometria
    interglacjał mazowiecki
    Polska wschodnia
    Opis:
    For quantitative estimation of past water temperature of four Holsteinian (MIS 11) palaeolakes from eastern Poland, the oxygen isotope palaeothermometer was applied to shells of the aquatic gastropods Viviparus diluVianus and Valvata piscinalis. The δ18O composition of their shells demonstrated the average growth-season water temperatures during the mesocratic stage of the interglacial (Ortel Królewski Lake), during its climatic optimum – the Carpinus–Abies Zone (Ossówka-Hrud, Roskosz and Szymanowo Lakes), and in the post-optimum (Szymanowo Lake). The calculation was based on δ18O Shell values and the δ18O Water assumed for the Holsteinian from the modern oxygen isotope composition of precipitation and the expected amount of evaporative enrichment. The mean oxygen isotope palaeotemperatures of Ortel Królewski lake waters were in the range of 18.1–21.9°C and were uniform for the Taxus and Pinus–Larix zones. Ossówka-Hrud and Roskosz Lakes had mean temperatures of 17.4–21.0°C during the climatic optimum, whereas the temperature of Szymanowo lake waters was estimated at 20.6–21.7°C at that time. These values are concordant with the pollen-inferred July air temperatures noted during the Holsteinian in eastern Poland. Relatively high values of ~25°C in the post-optimum noted at Szymanowo were connected with the presence of a shallow and warm isolated bay indicated by pollen and mollusc records.
    Źródło:
    Acta Geologica Polonica; 2017, 67, 4; 585-605
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plant macrofossils from the Czyżów Complex deposits of the Szczerców outcrop, central Poland
    Autorzy:
    Myśkow, E.
    Krzyszkowski, D.
    Wachecka-Kotkowska, L.
    Wieczorek, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/184237.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    fluvial sediments
    plant macrofossils
    Holsteinian
    Czyżów Complex
    Central Poland
    Opis:
    The paper presents the results of research into the plant macrofossils found in the tectonic Kleszczów Graben, within Mesopleistocene sandy sediments. A number of samples were collected at eight locations from river sediments containing variously sized fragments of plants, mostly from greenish sands overlying Neogene sediments. The structural characteristics of the sediments show a cyclic record of the formation of point bars, their washing out at supercritical conditions, and their aggradation by fine-grained material during flow waning. Based on lithological and structural studies, it has been demonstrated that the sands accumulated in an environment of a meandering river, whose valley bottom was covered with fairly dense vegetation, inhibiting the influx of mineral material to the floodplain from the surroundings – the valley or glacial plateau slopes. The aim of further analysis was to identify the plant genera of the individual macrofossils (about 40 specimens). The most numerous macrofossils were observed in the middle layers of the profile, within sandy megaripple structures, where mostly fragments of Fraxinus and Acer wood were present. In other layers, several fragments of Pinus and three pieces of Populus wood were identified. Additionally, young stems of dicotyledonous plants and fragments of rhytidome (the outer bark of a tree) were found. The results are discussed in combination with considerations on the deposition of the Czyżów Complex in the Bełchatów outcrop, and on the occurrence of local flora.
    Źródło:
    Geology, Geophysics and Environment; 2016, 42, 3; 325-336
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of diatom successions from Mazovian (Poland) and Alexandrian (Belarus) lacustrine interglacial deposits
    Autorzy:
    Marciniak, B.
    Khursevich, G. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059912.pdf
    Data publikacji:
    2002
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Polska
    Belarus
    Mazovian/Alexandrian (Likhvinian, Holsteinian) Interglacial
    diatoms
    succession
    lake development.
    Opis:
    Comparative analysis of two profiles (Gvoznitsa, Malorita district, southwestern Belarus and Krępiec, Lublin Upland, eastern Poland) of Alexandrian and/or Mazovian (=Likhvinian, Holsteinian) age shows different diatom successions which are correlated with pollen data. Various species of Cyclotella, Stephanodiscus and Aulacoseira predominate at Gvoznitsa, while the diatom flora at Krępiec is more diverse and includes also Synedra, Asterionella, and Fragilaria taxa. Certain apparently extinct taxa of Cyclotella (C. comta var. lichvinensis (Jousé) Loginova, C. comta var. pliocaenica Krasske, C. temperiana (Loginova) Loginova, C. michiganiana var. parvula Loginova (C. parvula Loginova), are typical of the Mazovian and/or Alexandrian Interglacial.
    Źródło:
    Geological Quarterly; 2002, 46, 1; 59-68
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vegetation and climate of the Butënai Interglacial (Holsteinian) in Lithuania
    Autorzy:
    Kondratiené, O.
    Šeiriené, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059176.pdf
    Data publikacji:
    2003
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Holsteinian Interglacial
    pollen
    vegetation
    climate
    palaeogeography
    Opis:
    Palaeobotanical (mainly palynological) data from 38 sections of Lithuania and adjacent areas were used in order to resolve some palaeogeographical problems. The Butënai Interglacial (Holsteinian) had one distinct climatic optimum, represented by the B2–B4 pollen zones. This was a period of warm and wet climate with notable mild winters. The average annual temperature might have been 2–4ºC warmer and the annual precipitation some 300 mm greater than at present in Lithuania. There was probably no permanent snow cover during winters. Isopollen maps for the main forest constituents allow deduction of the directions of migration of individual tree taxa.
    Źródło:
    Geological Quarterly; 2003, 47, 2; 139-148
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The rank of climatic oscillations during MIS 11c (OHO and YHO) and post-interglacial cooling during MIS 11b and MIS 11a in eastern Poland
    Autorzy:
    Hrynowiecka, Anna
    Żarski, Marcin
    Drzewicki, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/2058672.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    substages of MIS 11
    Mazovian interglacial
    Holsteinian Interglacial
    MIS 12 and MIS 10 glaciation range
    palaeoclimate changes
    E Poland palaeolakeland
    Carbon isotope
    Opis:
    Lacustrine sediments representing Marine Isotope Stage 11 (MIS 11) were found in Hermanów (SE Poland) in a present-day closed depression under a thin cover of Weichselian and Holocene deposits (1.4 m). These sediments filled a palaeolake created as a result of melting of a dead-ice block at the end of MIS 12. Geological research has excluded the presence of an ice sheet during MIS 12 in this area. The lobe of the ice sheet of this glaciation was located several kilometres to the west of Hermanów. The palaeolake was part of a larger palaeolakeland in southeastern Poland, formed during MIS 11. The palaeomorphology of this interglacial is evident in the contemporary relief of the area and the outline of the lakes corresponds to the pattern of the closed palaeodepressions. Based on the record of sediments from Hermanów, a new perspective regarding the sub-division of MIS 11 is presented. Two regressive phases are observed in the Holsteinian Interglacial (MIS 11c) - OHO and YHO. The subsequent substages with five cold fluctuations according to the newest stratigraphic standards should be assigned to MIS 11b with a very clear cooling and a slightly warmer MIS 11a. Carbon isotopic composition of organic matter corroborates geological and environmental analysis. The isotopic composition suggests two cooling periods: OHO and MIS 11b. Stable climatic conditions with little temperature fluctuations persisted between the cooling periods.
    Źródło:
    Geological Quarterly; 2019, 63, 2; 375--394
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Older and Younger Holsteinian climate oscillations in the palaeobotanical record of the Brus profile (SE Poland)
    Autorzy:
    Hrynowiecka, A.
    Pidek, I. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060592.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    pollen analysis
    macrofossil remains analysis
    Mazovian Interglacial
    Holsteinian Interglacial
    palaeoecological reconstruction
    climate reconstruction
    Eastern Poland
    Opis:
    A pollen sequence of Holsteinian/Mazovian age known since the 1980s in Brus (Western Polesie) is the second site with a plant macrofossil record in eastern Poland. High sedimentation rates in a palaeolake that functioned in this area have allowed a detailed climate reconstruction that enabled to trace the Older and Younger Holsteinian oscillations and to outline the water-level changes in the water body. Climate reconstructions, based on full palaeobotanical analyses (pollen and macroremains), were compared with those from Nowiny Żukowskie (Lublin Upland), revealing regional climatic patterns. The two Holsteinian climate oscillations were correlated with those detected in the Dethlingen section of Germany (Koutsodendris et al., 2010), providing more information on the spatial scale of these events.
    Źródło:
    Geological Quarterly; 2017, 61, 4; 723--737
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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