Informacja

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

Wyszukujesz frazę "glacial lake" wg kryterium: Temat


Wyświetlanie 1-11 z 11
Tytuł:
The main stages of development of glacier margin morphology in the region between Billefjorden and Austfjorden, central Spitsbergen
Autorzy:
Gonera, Przemysław
Kasprzak, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/2053130.pdf
Data publikacji:
1989
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Spitsbergen
Quaternary palaeogeography
ice-cored moraine
glacial lake
Źródło:
Polish Polar Research; 1989, 10, 3; 419-427
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and infill of Vistulian glacial Lake Gniew (N Poland) : a sedimentological analysis
Autorzy:
Błaszkiewicz, M.
Gruszka, B.
Powiązania:
https://bibliotekanauki.pl/articles/2059705.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Vistulian
glacial lake
sedimentology
glaciolacustrine deposits
massive clay
jökulhlaup
Opis:
A substantial glaciolacustrine unit in northern Poland, between the valleys of the Vistula and Wierzyca rivers, was deposited in glacial Lake Gniew during the climatic amelioration of the Late Vistulian. It covers an area of 35 km2 and has an average thickness of 7m, but locally reaches over 20 m. Four sedimentary facies are distinguished. The silty/clayey rhythmites of facies A are interpreted as varves from the central lake bottom. They represent the initial stage of lake development. Facies B is formed by a single sand layer that is interpreted as a turbidite originating during lake shallowing due to self-drainage. Facies C consists of massive clay with dropstones and dump structures. Two hypothesis regarding its genesis are put forward: the first assumes sedimentation in a shallow basin with a high input of homogenous fine-grained suspended sediment, whereas the second explains the facies as a result of amuddy jökulhlaup, pouring into Lake Gniew and being sourced from another glacial lake; further research is required to interpret this facies reliably. Facies D consists of thick silty/clayey rhythmites that are interpreted as prodeltaic deposits.
Źródło:
Geological Quarterly; 2005, 49, 4; 449--462
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of the shorelines of glacial Lake Peipsi in Eastern Estonia during the Late Weichselian
Autorzy:
Rosentau, A.
Hang, T.
Miidel, A.
Powiązania:
https://bibliotekanauki.pl/articles/2058810.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Late Weichselian
glacial Lake Peipsi
proglacial environment
GIS
water level changes
glacial rebound
Opis:
Digital reconstruction of the evolution of glacial Lake Peipsi, Eastern Estonia, was based on a geographic information system (GIS) method that removed isostatically deformed palaeowater planes fromthe current digital terrain model. A reconstruction of the proglacial water levels was performed with respect to geomorphological correlation of river terraces, raised shorelines and eroded surfaces of various aqueoglacial landforms. The configuration of shorelines, main outlets and water depths of glacial Lake Peipsi, corresponding to the Otepää, Piirissaar, Kaiu and Pandivere–Neva stades during the deglaciation of the Lake Peipsi depression, was simulated. The two approaches used, reflecting the geomorphological correlation of Raukas and Rähni (1969) and Hang (2001), are discussed.
Źródło:
Geological Quarterly; 2004, 48, 4; 299--307
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of age on the occurrence of internal parasites in perch (Perca fluviatilis L.) from Lake Goreckie in Wielkopolski National Park
Autorzy:
Andrzejewski, W.
Uzar, T.
Pekala-Safinska, A.
Urbanska, M.
Serwanska-Leja, K.
Pociecha, A.
Powiązania:
https://bibliotekanauki.pl/articles/2119002.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
perch
Perca fluviatilis
parasite
fish age
national park
post-glacial lake
Wielkopolski National Park
Lake Goreckie
Opis:
European perch (Perca fluviatilis) is a widespread species of freshwater fish. The most frequently isolated parasites in this species are endoparasites, such as trematodes, cestodes and nematodes. The purpose of the study was to determine the presence of parasite species found in perch and the correlations between the occurrence of parasites and age in fish from the Lake Góreckie reserve, located in Wielkopolski National Park. Among 139 examined perch, parasites were found in 69,8%. The analysis showed parasite species from the genera Acanthocephalus, Cammallanus, Neoechinorhynchus, Triaenophorus, Proteocephalus and Tetracotylus. The most common parasitosis was taeniasis. The analyses showed that occurrence of parasites correlates with the age of perch. Older fish were more often infected with parasites, especially of the genus Triaenophorus.
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2021, 17, 4; 37-44
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geological and palaeogeographical peculiarities of the Adamów Graben area, central Poland
Autorzy:
Widera, Marek
Dzieduszyńska, Danuta
Petera-Zganiacz, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2204352.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
marine rocks
Oligocene clays
Oligocene pebbles
Miocene sandstone
glacial lake
periglacial involutions
fossil forest
skała morska
iły oligoceńskie
piaskowiec mioceński
jezioro polodowcowe
inwolucje peryglacjalne
Opis:
From a geological and palaeogeographical point of view, the area of the Adamów Graben in the vicinity of Turek ranks amongst the best known in central Poland, with several opencast mines located here where lignite was exploited for 57 years. These large-surface exposures provide a good opportunity for detailed geological studies of strata of Late Cretaceous to Holocene age. However, the present research focuses mainly on those deposits, forms and structures that have been most thoroughly examined and are best exposed. These are Cretaceous marls and gaizes, Paleogene ‘blue clays’ and the ‘Koźmin Gravels’, Neogene sandstones, as well as the Quaternary glacial ‘Lake Koźmin’, involutions and ‘Koźmin Las’. Some of these, e.g., the ‘Koźmin Gravels’ and ‘Koźmin Las’, are not known from other Polish territories. Furthermore, results obtained by the authors over a period of nearly 30 years also include data on palaeogeographical changes across some Cenozoic intervals, especially during the early Oligocene and late Weichselian.
Źródło:
Geologos; 2022, 28, 1; 1--17
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Timing of the final disappearance of permafrost in the central European Lowland, as reconstructed from the evolution of lakes in N Poland
Autorzy:
Błaszkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2058749.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Late Glacial
permafrost disappearance
buried ice
lake basins
Opis:
Accumulation of sediments in the lake basins of the Starogard Lakeland, Northern Poland, an area which was entirely ice-covered during the last glaciation, started at different times, beginning during the Late Glacial. Sedimentation continued till the beginning of the Holocene (Preboreal). The principal factor causing the asynchronous start of the lake development was the variation in melting processes of buried dead-ice blocks. The preservation of dead-ice masses in some depressions until the Preboreal leads to the conclusion that the ultimate disappearance of permafrost in the study area occurred only at the beginning of the Holocene.
Źródło:
Geological Quarterly; 2011, 55, 4; 361-374
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating long term sediment yields from sediment core analysis
Oszacowanie dlugookresowej dostawy rumowiska na podstawie analizy rdzeniowej
Autorzy:
Kennie, P
Bogen, J.
Olsen, H.C.
Powiązania:
https://bibliotekanauki.pl/articles/81703.pdf
Data publikacji:
2010
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
sediment yield
core analysis
glacial river
sediment transport
Lake Nigardsvatn
Norway
Opis:
Sediment cores from lakes and reservoirs can be used to estimate sediment yields. In proglacial lakes, the bed sediment typically accumulates as varves, reflecting changes in seasonal and annual sedimentation. This report compares the results from two different methods of measuring suspended sediment transport in a Norwegian glacial river and lake. Sediment yields obtained from a study of sediment cores in the proglacial lake Nigardsvatn along with measurements of the delta topset were compared with a 25-year record of sediment transport based on automatic water sampling and water discharge measurements at a monitoring station at the inflowing river. During the period from 1980 to 2005, analyses of sediment cores taken from the lake bed along with measurements and grain size distribution analysis of the delta indicated that a volume of 175,670 to 202,697 m3 was deposited in the lake Nigardsvatn and corresponding river delta. The year 1980 was selected as a convenient starting point because a large-magnitude flood with a 100-year recurrence interval occurred at the end of 1979, leaving an easily recognizable sediment layer and accurate reference point. Sediment cores were taken at a total of 24 locations throughout the lake and 25 locations in the delta. The densities of the sediment cores were found to vary between 1.3 and 1.5 g/cm3 during the period examined in this study, giving a total suspended sediment load of between 175,670 and 202,697 tons. The measurements carried out at the sediment station in the glacier melt-water river gave a value of 294,800 tons during the same period. A final value of 211,100 tons is calculated from the monitoring station results after deduction of the sediment fraction which passes through the lake without being deposited. This gives a discrepancy between the two methods of 8,403 to 35,430 tons (4–20%). This can be partially attributed to the difficulties of measuring the water discharge in the unstable glacier meltwater river. In conclusion, sediment cores may be used to extrapolate or correct measurements from sediment monitoring stations over longer periods but caution should be made when considering single years.
W pracy przedstawiono wyniki badań prowadzonych według dwóch różnych metod pomiaru ilości rumowiska unoszonego, dostarczonego w latach 1980–2005 do jeziora Nigardsvatn w Norwegii, które zasilane jest wodami roztopowymi z lodowca Jostedalsbreen. Wielkość dostawy rumowiska, określoną na podstawie analizy rdzeniowej z sondowania geologicznego osadów dennych jeziora, porównano z wynikami uzyskanymi na podstawie danych z 25-cio letniego ciągu pomiarów zmącenia w rzece zasilającej jezioro. Stwierdzono, że różnica w wielkości dostawy rumowiska do jeziora określona dwiema metodami wynosi 4–20%, przy czym mniejsze wartości uzyskano na podstawie analizy rdzeniowej osadów. Autorzy uważają, że metoda ta może być stosowana do oszacowania lub korygowania wyników pomiarów zmącenia w rzekach zasilających jeziora i zbiorniki wodne w dostatecznie długich okresach.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2010, 42, 1; 115-126
0208-5771
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zapis procesów prehistorycznej antropopresji w otoczeniu stanowiska archeologicznego w Bruszczewie (centralna Wielkopolska) na podstawie badań osadów rynny glacjalnej Samicy
Autorzy:
Hildebrandt-Radke, I.
Janczak-Kostecka, B.
Spychalski, W.
Powiązania:
https://bibliotekanauki.pl/articles/295260.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
archaeological settlement
fossil lake
glacial trough
Kościan Plain
sedimentological
geochemical
palynological
diatomological analysis
Opis:
The sedimentological, geochemical and diatomological research into the core taken from the fossil lake located in the glacial channel of Samica river prove the increasing anthropogenization of the landscape in the microregion surrounding the settlement in Bruszczewo. Anthropogenic indices of the Early Bronze Period in the palynological research include: high decline in the percentage of tree pollens caused by deforestation, indicators of grazing animals and farming as well as noticeable eutrophication of the lake (fungal spores and algae thriving on dung, droppings and excrement). In the sedimentological research, cultural layers correspond with accelerated mineral sedimentation in the basin (mediumand fine-grained sands). Each time it is preceded with organic sedimentation (from humus levels). Above results might signify the initiation of erosion-denudation processes in the catchment, settled and economically exploited by individual cultural groups. Results of the anthropogenic activity are visible also in the geochemical composition of the deposits. Cultural layers are marked with increased percentage of heavy metals, while the Cu : Pb : Zn ratios suggest their anthropogenic character. Additionally, the increase in phosphorus percentage confirms eutrophication of the basin in the settlement periods, that is in the Early and Late Bronze, and Early and Roman Iron Ages.
Źródło:
Landform Analysis; 2011, 16; 87-91
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany wydajności wypływów wód podziemnych młodoglacjalnego obszaru morenowego na Pojezierzu Kaszubskim
Changes of groundwater outflows discharge in the young glacial area of the Kashubian Lake District
Autorzy:
Jaworska-Szulc, B.
Pruszkowska-Caceres, M.
Przewłócka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2075413.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wypływy wód podziemnych
źródła
młodoglacjalny obszar morenowy
Pojezierze Kaszubskie
natural groundwater outflows
springs
young glacial area
Kashubian Lake District
Opis:
The article presents results of investigations carried out in the central, most elevated part of the Kashubian Lake District, in the area of the Szymbarskie Hills and the Ostrzyckie Lake. The occurrence of groundwater outflows is very diverse here; wide areas of young glacial elevations are free from springs, while large concentration of groundwater outflows is observed in the vicinity of trough lakes. Investigations of the outflows discharge and of the water chemical composition were carried out in the period of three years. Most of the analyzed springs are perennial, only a few of them are of periodic character. Comparison of the obtained results with the results of the research performed 40 years ago shows little diversity, without a clear trend to development or disappearance of groundwater outflows.
Źródło:
Przegląd Geologiczny; 2015, 63, 10/1; 774--779
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Malakofauna osadów jeziornych torfowiska Gajlik na Pojezierzu Sejneńskim (północno-wschodnia Polska)
Malacofauna of Gajlik mires lake deposits in the Sejny Lake District (North-Eastern Poland)
Autorzy:
Alexandrowicz, W. P.
Żurek, S.
Powiązania:
https://bibliotekanauki.pl/articles/952734.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
malakofauna
kreda jeziorna
gytia wapienna
torf
późny glacjał
wczesny holocen
Pojezierze Sejneńskie
północno-wschodnia Polska
malacofauna
calcareous gyttia
lacustrine chalk
peat
Late Glacial
Early Holocene
Sejny Lake District
north-eastern Poland
Opis:
Analizie malakologicznej poddano skorupki ślimaków i małży występujące w gytiach wapiennych i kredach jeziornych wypełniających torfowisko Gajlik na Pojezierzu Sejneńskim. W sześciu analizowanych próbkach stwierdzono występowanie 13 gatunków mięczaków wodnych. Obserwowane zmiany składu i struktury zespołu mięczaków uzupełnione wynikami analiz palinologicznych i radiometrycznych pozwoliły na rekonstrukcję ewolucji torfowiska Gajlik w okresie późnego glacjału i dolnego holocenu. Skorupki mięczaków występowały wyłącznie w osadach związanych z cieplejszym i okresami (interfaza oraz preborealna i borealna faza holocenu). Nie pojawiały się one natomiast w osadach zimnych okresów późnego glacjału.
Malacological analysis was conducted on snails and bivalve shells present in calcareous gytia and lacustrine chalk of the Gajlik mire in the Sejny Lake District. Thirteen species of water molluscs were identified within six analyzed samples. Changes observed in the structure and composition of molluscs, supplemented by palynological data, and the results of radiocarbon datings allowed for the reconstruction of the mire's evolution during Late Glacial and Early Holocene period. Molluscs' shells occurred solely in sediments associated with warmer periods (interphase and Preboreal-Boreal phases of Holocene). Additionally, they were not present in sediments associated with cold Late Glacial periods.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2010, 36, 4; 491-504
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

    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