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Wyszukujesz frazę "Vistula delta" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-6 z 6
    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:
    Rozwój wybrzeża Zatoki Gdańskiej w rejonie ujścia Wisły Martwej
    Development of the Gulf of Gdańsk coast in the area of the Dead Vistula mouth.
    Autorzy:
    Jegliński, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075019.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Vistula delta
    Vistula mouth
    Holocene
    geological structure
    palaeogeographical reconstruction
    delta Wisły
    ujście Wisły
    holocen
    budowa geologiczna
    rekonstrukcja paleogeograficzna
    Opis:
    Vistula River is the second largest river in the Baltic Sea catchment area. Its delta is located at the Gulf of Gdańsk region and has been formed during the last ca. 13500 yr. The Dead Vistula is the oldest historically documented, and also the westernmost channel of the delta, drained water directly into the sea. The aim of the study was to reconstruct the development of the Dead Vistula outlet area during the late Holocene. At the end of the Atlantic period marine transgression reached the farthest range on the investigated area. During the next ca. 3000 yr. the embayment was filled by marine sand. The preserved dune ridges indicate earlier shoreline position. The oldest of them stabilized, acc. to OSL dating, between 3950 and 3150 yr. BP and are oriented WSW-ENE. The orientation of the dune ridges lying further to the north, changes gradually to WNW-ESE. The next generation of dunes stabilized between 2760-2380yr. BP. Vistula outlet in this place was created between 3000-2500 yr. and in that time the process of outlet cone forming was started. Orientation of the younger dune ridges, stabilized between 2220 and 1505 yr. BP, are in close connection with the development of the area. The process had not been steady in time. Two periods of accretion was sepa¬rated by stagnation time. The total amount of the material accumulated during both stages of development was ca. 178 mln. m3. The numerous ofpreserved historical bathymetric plans were very helpful for reconstruction ofthe outlet cone development during the second stage. The extension of the cone ended in the year 1840, when the new mouth has been formed. Since that time, as a result of the lack of clastic material supplying the cone earlier, marine erosion increases.
    Źródło:
    Przegląd Geologiczny; 2013, 61, 10; 587--595
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Warunki obciążania jako czynnik rzutujący na odkształcalność osadów deltowych z zachodniej części Żuław Wiślanych
    Conditions of loading as a factor affecting compressibility behavior of soils from western part of Vistula Delta “Żuławy”
    Autorzy:
    Białobrzeski, T.
    Dobak, P.
    Szczepański, T.
    Zawrzykraj, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075701.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    odkształcalność
    konsolidacja
    CRL
    prędkość obciążenia
    compressibility
    consolidation
    loading rate
    Opis:
    Results of a series of CRL-type consolidation tests on alluvial deposits form Vistula Delta "Żuławy ”, conducted with diverse load rates are shown. Such approach revealed diversified strain response of tested material. Dividing loading into stages has made increasing of stiffness, which may be applicable on the practice field.
    Źródło:
    Przegląd Geologiczny; 2017, 65, 10/2; 756--764
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Konieczność walidacji monitoringu wód podziemnych w rejonach starych składowisk na przykładzie składowiska fosfogipsów w Wiślince (Żuławy Gdańskie)
    The necessity of validation of groundwater monitoring in the regions of old dumping sites : a case study of a phosphogypsum dump at Wiślinka (Vistula Delta Plain)
    Autorzy:
    Sadurski, Andrzej
    Trokowicz, Danuta
    Powiązania:
    https://bibliotekanauki.pl/articles/2076025.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    odpady fosfogipsowe
    wysypisko śmieci
    równina delty Wisły
    walidacja monitoringu wód podziemnych
    phosphogypsum waste
    dumping site
    Vistula Delta Plain
    validation of groundwater monitoring
    Opis:
    The phosphogypsum waste dump near Gdańsk was located within the Vistula delta depression on alluvial and lacustrine deposits close to the Dead Vistula River in the early 1970s. More than 16 million tonnes of waste deposits was accumulated until 2009. The loam outcrop of the old brick-yard was used for phosphogypsum. The leachates from the waste deposits causes the migration of contaminants due to density and hydraulic gradients down to the Vistula delta aquifers. The leachate is characterised by low pH, very high concentrations of phosphates and sulphates, metal ions, and radioactive elements. The waste dump was ultimately closed in 2009. The dump ’s surface has been covered with municipal sewage sludge, as the so-called biological reclamation reduces the dustiness of phosphogypsym and the quantity of leachate, but generated additional threat resulting from the chemical compounds of the sludge. The matter from the municipal sewage sludge, dumped on the surface of the phosphogypsum waste heap, contained hormone disruptive compounds (EDCs), nitrogen compounds, viruses, bacteria and other pathogens. The existing groundwater monitoring started in the mid-1970s and was projected and constructed in a very simple way. The observation wells and piezometers have been screened over a short distance at the bottom. Contaminants of different densities, liberated to the aquifers underneath, cannot be properly detected. The new analytical procedures are implemented in chemical laboratories and new methods of monitoring, e.g. low flow sampling, are now in practice. Also the climate changes and sea level rise along the Baltic coast require a new approach and validation of groundwater monitoring in the surroundings of the old waste dumps of chemical and mining industry.
    Źródło:
    Przegląd Geologiczny; 2020, 68, 12; 894---901
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model litofacjalny stożka ujściowego Wisły jako zapis interakcji środowiska lądowego i morskiego
    Lithofacies model of the Vistula river-mouth fan as a record of the interaction of marine and terrestial environments
    Autorzy:
    Koszka-Maroń, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075489.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Wisła
    czoło delty
    prodelta
    model facjalny
    morfodynamika
    Vistula river
    delta front
    facial model
    morphodynamics
    Opis:
    The study area (20 km2) covers part of the Vistula River's delta front and prodelta, active since 1895. The Vistula river-mouth fan is a unique area of intense accumulation of clastic material, whose development can be investigated from a precisely defined moment in the history of its origin to the present day. The research has resulted in a morphodynamic model (based on bathymetric plans of the contemporary Vistula mouth area over the period of 1894–2000) and a facies model of the Vistula mouth fan. The analysis of the morphometric models shows that 105 years after the Vistula Cross-Cut was opened, the volume of the sediment accumulated in the fan was 133.39 million m3 and the rate of accretion has decreased. Facial models were created on the basis of results of lithological analysis of sediments. The Vistula mouth fan is built of delta front sediments represented mainly by sand facies (fine-, medium- and coarse-grained, locally with gravel, as well as marine and freshwater mollusc shells), only locally by silt facies. The thickness of the river-mouth fan sands is 11–15 m. The prodelta sediments are found on the fan's forefield within a depth zone of 12–16 m, and they also underlie the fan sediment. Their thickness is up to ca. 10 m. Cluster analysis of the individual grain-size distributions made it possible to distinguish two lithofacies in the Vistula mouth fan: lithofacies A (fine-grained sand, silty sands, clayey silt) and lithofacies B (medium-grained and coarse-grained sand). This allowed reconstructing the processes which has taken place over the last 100 years, and to forecast future changes in the development of the active part of the Vistula Delta.
    Źródło:
    Przegląd Geologiczny; 2016, 64, 5; 315--327
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recent development of the Vistula River outlet
    Autorzy:
    Graniczny, M.
    Janicki, T.
    Kowalski, Z.
    Koszka-Maroń, D.
    Jegliński, W.
    Uścinowicz, Sz.
    Zachowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1187377.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    delta front
    recent delta development
    Vistula river
    southern Baltic Sea
    Gulf of Gdansk
    digital terrain model (DTM)
    remote sensing
    GPS surveys
    Opis:
    The Vistula River mouth is an unique example of river’s outlet observed since the birth in 1895 to present day. There is a large documentation of morphological changes in the outlet area. In 1895, a 7 kilometres canal was dug into which the waters of the Vistula were let in. Since 1895, most of the water discharge and all sediment transport reach the Gulf through artificial channel c. 20 km east of Gdańsk. During the last 100 years, the shoreline has been shifted seaward c. 1.5 km on the eastern side, to c 2.5 km on the western side of the Vistula mouth. Isobath of 5 m moved seaward c. 3 km and isobaths of 10 and 15 m shifted 2.5 km. During the years 1895-1997, land area accreted to 3,019,000 m2. The volume of the river-outlet cone in the year 2000 was 133.39 mln m3 and the average rate of sediment growth over the 105 years was c. 1.27 mln m3 per year.
    Źródło:
    Polish Geological Institute Special Papers; 2004, 11; 103--107
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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