Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "delta model" wg kryterium: Temat


Wyświetlanie 1-2 z 2
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 1-2 z 2

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies