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    Wyświetlanie 1-12 z 12
    Tytuł:
    Reconstruction of the Vistula ice stream during the Last Glacial Maximum in Poland
    Autorzy:
    Morawski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059221.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    N Poland
    Vistula valley
    Pleistocene
    ice stream
    glacial morpholineaments
    Opis:
    The variability ofice movement directions within the Vistula lobe of the Main Stadial ice sheet of the last glaciation is analysed. Reconstruction of the ice movement directions is made based on analysis of the orientation of glacial morpholineaments. Linear glacial land forms are analysed on the basis of data from 26 map sheets of the Detailed Geo logical Map of Poland (DGMP), scale 1:50 000, compiled earlier by various au thors. The morpholineaments were investigated in a belt of morainic plateau that adjoins the Vistula valley on both sides. The analysis revealed that the last glaciation ice sheet advanced directly from the north within the broadly un der stood Vistula ice lobe zone, and that the ice flow direction was constant. However, within a narrow belt of the pre-Vistula River valley that was formed in the Eemian Interglacial, the 30–50 km wide ice stream was characterized by locally variable ice flow directions consistent with the pre-existing valley trend. Changes in ice flow direction are recorded in the locally variable orientation of lin ear glacial landforms, indicating that the ice stream was active until the deglaciation period when the pres ent-day shapes of the glacial landforms developed.
    Źródło:
    Geological Quarterly; 2009, 53, 3; 305-316
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recharge of Gdańsk municipal groundwater intakes on the Vistula Delta Plain (Northern Poland)
    Autorzy:
    Szpakowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058832.pdf
    Data publikacji:
    2003
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Vistula Delta Plain Quaternary aquifer
    Modflow
    groundwater intake
    numerical calcutation
    groundwater flow
    Opis:
    Results of the Vistula Delta Plain Quaternary recharge analysis are presented in this paper. This region is situated south of Gdańsk city near the Bay of Gdańsk. There are two municipal intakes situated on the Vistula Delta Plain: Lipce and Grodza Kamienna. Different exploitation of the municipal intakes is considered. The numerical calculations are made for the pre- 1969 period before the Lipce intake started discharging the Quaternary aquifer in the steady-state conditions and for the 15 years period after the opening of the Lipce intake, in the transient conditions. The results of calculations of the natural state of the Vistula Delta Plain Quaternary aquifer are also presented. The numerical calculations were carried out using the Modflow and Modpath code in Groundwater Modelling System (GMS 2.1) package. Presented results of numerical calculations show that the Quaternary aquifer exploited by groundwater intakes Lipce and Grodza Kamienna is connected with inflow from the Martwa Wisła River into the Vistula Delta Plain Quaternary aquifer and confirm the Quaternary aquifer groundwater flow evaluation based on Cl– ions concentration in the observation wells.
    Źródło:
    Geological Quarterly; 2003, 47, 4; 389-396
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Belemnitella stratigraphy of the Upper Campanian : basal Maastrichtian of the Middle Vistula section, central Poland
    Autorzy:
    Remin, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059997.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Campanian
    Maastrichtian
    Vistula section
    belemnites
    biostratigraphy
    artificial Neural Networks
    Campanian-Maastrichtian boundary
    Opis:
    This taxonomy and stratigraphy of the Upper Campanian and Lower Maastrichtian Belemnitella lineages, from the Middle Vistula sections, based on new collections, is presented. The correlation to the basal Maastrichtian standard GSSP at Tercis, France, is provided based on inoceramid bivalve stratigraphy. The Artificial Neural Networks (ANN), particularly the self-organizing Kohonen algorithm, was applied to taxonomic discrimination. Eight morphotypes within the genus Belemnitella, understood here as natural species populations, were recognised. Five of these are assigned to known taxa: Belemnitella mucronata, B. posterior, B. minor [= B. minor I and B. minor II], B. langei and B. najdini; and three, B. sp. a, B. sp. 1 and B. sp. 2, are left in open nomenclature. Four Belemnitella zones are proposed. Due to its palaeogeographic position, between Western and Eastern Europe, the Middle Vistula section is characterized by the co-occurrence of Belemnitella species from those two areas. Consequently, it enables better correlation of Belemnitella-based schemes; the East European B. najdini and B. posterior are placed next to West European B. minor chronospecies I and II. The Campanian/Maastrichtian boundary, as currently defined, is placed at the top of the najdini – posterior Zone, which is an equivalent of the Belemnella-based boundary, i.e. at the base of the Belemnella obtusa / Belemnella vistulensis zones. Within the top of the najdini – posterior Zone occurs a level (an interval of only a few metres), where nearly all of the Upper Campanian Belemnitella disappear. This level coincides with taxonomic changes observed within the co-occurring representatives of genus Belemnella.
    Źródło:
    Geological Quarterly; 2015, 59, 4; 783--813
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Foraminiferal bioevents in the upper Campanian to lowest Maastrichtian of the Middle Vistula River section, Poland
    Autorzy:
    Peryt, D.
    Dubicka, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059982.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Campanian-Maastrichtian boundary
    foraminifera
    bioevents
    stratigraphic correlation
    Middle Vistula River Valley section
    Opis:
    The Upper Campanian–Lower Maastrichtian interval of the Middle Vistula River Valley section records the following benthic foraminiferal bioevents in ascending stratigraphical order: LO of Globorotalites michelinianus, FO and LO of Globorotalites emdyensis (=G. hiltermanni), FO of Bolivina incrassata, FO of Bolivinoides miliaris, FO of Angulogavelinella gracilis (=A. bettenstaedti), LO of Gavelinella monterelensis, FO of Osangularia navarroana, FO of Bolivina decurrens and FO of Neoflabellina reticulata. These events are recorded in very similar stratigraphic positions in the Lägerdorf-Kronsmoor succession (northern Germany) and in the succession of eastern England and, at least some of them, in eastern Europe. Accordingly they can serve as important markers for stratigraphic correlation across Europe. The FOs of the planktonic species, Rugoglobigerina milamensis, R. hexacamerata and R. pennyi, in the uppermost part of the “Inoceramus” redbirdensis Zone,are very close to the Campanian–Maastrichtian boundary as defined by inoceramid bivalves (Walaszczyk, 2004) and we propose these planktonic foraminiferal bioevents as a good proxy for this boundary in temperate regions.
    Źródło:
    Geological Quarterly; 2015, 59, 4; 814--830
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Alluvial bottom geology inferred as a factor controlling channel flow along the Middle Vistula River, Poland
    Autorzy:
    Falkowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059483.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    alluvial basement
    erosion resistant deposits
    Middle Vistula River Valley
    channel zone
    stream zone
    Opis:
    Within the channel zone of the Middle Vistula River, elevations of the Holocene alluvial basement occur, composed of deposits resistant to erosion. In this paper two kinds of such forms are discussed. Within the Małopolska gorge (an upstream part of the Middle Vistula, near Kępa Gostecka and Zakrzów), the elevations are composed mainly of Upper Cretaceous and Paleogene rocks covered with clayey debris and residual lags. Below this, the elevations are built of Paleogene and Neogene soils as well as of various Pleistocene glacial deposits, and are of ten covered by residual lags. This type of valley stretch occurs in the vicinity of Dęblin. The surface of the erosion-resistant Holocene alluvial basement averages at 5-7 m below the mean water level. It is exposed on the channel bottom during high-water stages, as seen from a residual layer and from the low density of the contemporary channel deposits above them. The morphology of these elevations influences the pattern of the main stream also during mean-water stages. The trend to flood flow concentrations is also seen in the relief of the floodplain.
    Źródło:
    Geological Quarterly; 2007, 51, 1; 91-102
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phases of aeolian accumulation on the Vistula Spit (Southern Baltic Sea) in the light of TL dating and analysis of a digital elevation model
    Autorzy:
    Fedorowicz, S.
    Wysiecka, G.
    Zieliński, P.
    Hołub, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059003.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Southern Baltic
    Vistula Spit
    Holocene
    dune ridges
    TL dating
    DEM
    Opis:
    The genesis of the Vistula Spit (Southern Baltic Sea) in the Postlitorina period is regarded as occurring by gradual addition of successive dune ridges along the entire length of the form. Based on the degree of soil profile development and radiocarbon dating of organic sediments three main stages of aeolian processes are usually recognized. GIS analysis of a digital elevation model (DEM) and thermoluminescence dating of dune sand supports the model of progressive development of dune ridges, and has identified four periods of intense aeolian activity. These were established 5860–5400, 1930–1610, 1200–900 years ago from the present, and from 500 years ago.
    Źródło:
    Geological Quarterly; 2012, 56, 2; 345-352
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The methodology of a complex engineering-geological approach to establish a Geopark : case study of the Małopolska Vistula River Gorge
    Autorzy:
    Pinińska, J.
    Domonik, A.
    Dziedzic, A.
    Łukasiak, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060277.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    geopark
    geosite
    Małopolska Vistula Gorge
    touristic safety
    maintenance safety
    GIS
    integrated digital engineering-geological maps
    Opis:
    Małopolska Vistula River Gorge is located in the middle stretch of the Vistula valley between Zawichost and Puławy. Its great portion is supposed to be turned into a Geopark safely approachable by tourists along walking trails leading to planned geosites. While general criteria of geosite selection are oriented on promoting expected interesting attributes of the planned Geopark or, in a special case, on recognizing possible strong geological hazards such as volcanic, earthquake and tsunami phenomena, the inner problems of tourist safety are not commonly recognized. The Vistula Gorge and its close vicinity of Geopark is dedicated to cultural heritage, geological history, landscape and local folklore. The inner hazards of disasters are created here by steep, slippery paths, collapsible loessial canyons, rock-falls from weathered rock-walls, and high waters of the nearby river channel running alongside or flooding tourist footpaths. Recognition and preventing measures against such hazard require determination of the current engineering-geological conditions by testing rock and soil properties along the gorge, and by checking the likelihood of natural disturbance of the terrain safety. The vulnerability of exposed rocks to processes of natural erosion, steady weathering progress, turning steep clayey bluffs into slippery ground, and to an impact of long-term anthropogenic factors had to be recognized, checked, and tested for a final assessment of suitability of the selected place to serving as a Geopark. The special prognostic procedure of engineering-geological hazards was recommended, applicable prior to the Geopark planning stage. The procedure encompasses a thorough assessment of possible safe accessibility to particular geosites in the area designated to become a Geopark. The suitability of the selected area to serving as a Geopark was, thus, analyzed methodically with regard to a detailed engineering-geological and geomechanical evaluation of possible hazard factors within the whole terrain. Proven engineering geological methodologies were employed for the hazard assessment procedure. Each of the factors was subjected individually to close examination, with results recorded into a GIS integrated informative layer, and envisioned upon digital thematic maps. These maps remain to be used for the preparation of regional suitability maps of specific engineering-geological conditions.
    Źródło:
    Geological Quarterly; 2015, 59, 2; 408--418
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pleistocene river valleys and ice sheet limits in the Southern Mazovian Lowland, central Poland
    Autorzy:
    Żarski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059923.pdf
    Data publikacji:
    2002
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Pleistocene
    Vistula river valley
    ice sheet limit
    glaciation
    Opis:
    The buried and present-day Vistula valleys has developed along tectonic linear structures of NW-SE trend. The Vistula river valley and its tributaries essentialy maintained their courses during the Małopolanian, Ferdynandovian, Mazovian and Eemian interglacials. During the Małopolanian, Mazovian, Ferdynandovian interglacials the gradient of the buried Vistula valley was 0.57?, while during the Eemian Interglacial and during deposition of Vistulian terraces and Holocene flood plain deposits it was about 0.34?, due to from tectonic movements. The width of the buried Vistula valley was the greatest during the Eemian Interglacial (15 km) and during the Vistulian (17 km) when strong lateral erosion occurred. The stratigraphy of the Quaternary deposits is based on palynologically documented sites of the Ferdynandovian, Mazovian and Eemian interglacials. This region was covered by ice sheets of the Nidanian, Sanian, Wilgian, Liviecian, Odranian and Wartanian glaciations during eight advances. Liviecian and Wartanian Glaciation maximum limits were determined in the study area. Interstadial fluvial deposits, between the premaximum and maximum stadials of the Odranian Glaciation, were recognised and termed sediments of the Gniewosznian Interstadial. The deposits of the Wartanian Glaciation have been TL dated at 146-203 ka BP and the Odranian at 212-280 ka BP.
    Źródło:
    Geological Quarterly; 2002, 46, 2; 147-164
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetostratigraphy of the Campanian/Maastrichtian boundary succession from the Middle Vistula River section, Central Poland
    Autorzy:
    Plasota, T.
    Nawrocki, J.
    Walaszczyk, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059995.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    magnetostratigraphy
    Campanian-Maastrichtian boundary
    Polska
    Opis:
    The magnetic polarities of the upper Upper Campanian–Lower Maastrichtian interval of the Middle Vistula River composite section (central Poland), were studied. Sixty-six hand-oriented samples for palaeomagnetic studies were taken from the sections of Raj, Raj North, Podole, Kłudzie and Dziurków. The inter-correlation between them is based primarily on bio-events. The sampled rocks generally revealed a very weak magnetic signal, however quite reliable results were obtained. The whole interval studied, well constrained biostratigraphically, is referred to magnetostratigraphic chron C32n. The Campanian–Maastrichtian boundary, placed biostratigraphically in the upper part of the ‘Inoceramus’ redbirdensis inoceramid Zone, is located near the top of the C32n2n Subchron. Thin reversed polarity intervals in the rocks correlated with the C32n2n chron most probably result from their partial remagnetization (maghemitization).
    Źródło:
    Geological Quarterly; 2015, 59, 4; 831--842
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of litho- and pedogenic processes on Luvisols formation of selected area of Vistula Glaciation
    Autorzy:
    Jaworska, H.
    Dąbkowska-Naskręt, H.
    Kobierski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060473.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    luvisols
    lithological discontinuity
    lessivage
    glacial sediments
    Opis:
    The objective of the study was to determine the effect of litho- and pedogenic processes on soils of the selected area of Vistula Glaciation, based on profile distribution of unweathered components such as titanium, zirconium and silica in relation to their morphology, mineralogy, micromorphology and physicochemical properties. The predominant type of soilin the study area are Luvisols. Analysis of texture allowed to classify the investigated soils to sandy silts with loamy material as their subsoil. In the bulk soil silica dominates and its content was in the range 71.4 to 88.6%. The content of TiO2 within the profiles is fairy similar, without clear patterns in the profile distribution. The total content of zirconium in the samples was in range of 95.13 to 212.15 mg x kg-1. In the profile distribution of zirconium higher content of Zr was observed in the upper horizons compared to the top layerin all of theanalysed profiles, indicating different origin of soil material. Statistical analysis showed positive correla- tion between the total content of zirconium and the content of fraction 0 0.05-0.002 mm (correlation coefficient value: 0.692384; significance level - p < 0.05) and negative correlation between zirconium and clay content (correlation coefficient: -0.668157; p < 0.05). The lithologic discontinu i ty within profiles of the investigated soils has been additionally has proved by X-ray analysis of the clay fraction. The micromorphological analysis confirmed the complex genesis of the studied soils. The results of the study clearly showed an overall inhomogeneity and stratification of the soils. Studied Luvisols did not form as weath- ering product of homogeneous bedrock. Changes in granulometric and chemlcal composition within soil profiles are the consequence of translocation of clay fraction during lessivage as well as lithologic discontinul ty of the solum.
    Źródło:
    Geological Quarterly; 2014, 58, 4; 685--694
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrogeological structure of the Vistula River valley between Kamień and Puławy, eastern Poland
    Autorzy:
    Krajewski, S.
    Woźnicka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059624.pdf
    Data publikacji:
    2003
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Polska
    hydrogeological structures
    preglacial valley
    specific discharge of wells
    discontinuous tectonics
    fissures
    Opis:
    The monotonous and structurally uniform carbonate massif of Upper Cretaceous and Lower Palaeocene rocks in the western part of the Lublin Region is cut by river valleys significantly influencing the groundwater circulation system. The buried and contemporary river valleys, filled mainly with sand and gravel deposits, are influenced mainly by tectonic processes occurring in this region. The preglacial Vistula River valley between Kamien and Pu3awy constitutes a hydrogeological structure, the history of which is connected both with tectonics and with the influence of river waters. Its course has been determined by detailed hydrogeological exploration. Excellent hydrogeological parameters occurring within its limits cause high outputs fromgroundwater wells. There are also zones of increased water- bearing capacity within the carbonate massif. Their course, determined on the basis of analysis of the spatial distribution of hydrogeological parameters, coincides with sites of dislocation zones (zones of weakness in the rock massif).
    Źródło:
    Geological Quarterly; 2003, 47, 1; 77-82
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Eemian–Weichselian Pleniglacial fluvial deposits in S Poland (an example of the Vistula River valley in Kraków)
    Autorzy:
    Sokołowski, T.
    Wacnik, A.
    Woronko, B.
    Madeja, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059974.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Eemian-Weichselian
    river deposits
    climate change
    environmental change
    Opis:
    A fragment of the middle terrace in the VistulaRivervalley, nearby the railway station in Kraków, is formed by fluvial channel and overbank deposits of the PrądnikRiver, which bear a record of various environments affected by changing climatic conditions. The sedimentary succession includes two complexes that differ in lithofacies. The older complex comprises fining-upward deposits (channel sand and gravelly sand with medium- and large-scale trough cross-stratification) and, less frequently, sand with planar cross-stratification overlain by silt with intercalations of biogenic deposits of abandoned channels. Vegetation accompanying the deposition of biogenic layers was typical of boreal coniferous forests, dominated by Pinus sylvestris with a small admixture of Larix, Pinus cembra, Picea, Betula, and Populus. Periodically, the landscape passed into open areas overgrown by woody tundra. The complex developed as a result of activity of a meandering river under conditions of a moderately cool climate. The younger complex includes the sand lithofacies with horizontal stratification and low-angle cross-stratification, overlain by alternating sands and silts. The topmost part is represented by sands with large- and medium scale planar cross stratification. Lack of biogenic deposits and considerable amount of frosted quartz grains in alluvial sediments indicate aeolian processes of greater intensity, periglacial conditions and evolution towards a braided or transitional river. Pollen successions, absolute dating and studies of structural and textural features of the sediment suggest that the time of its deposition may be estimated at a range between the close of the Eemian Interglacial and the Weichselian Middle Pleniglacial (OIS 5e–OIS 3).
    Źródło:
    Geological Quarterly; 2014, 58, 1; 71--84
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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