Informacja

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

Wyszukujesz frazę "Late Glacial" wg kryterium: Temat


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:
Hydrological changes in the Lublin Polesie during the Late Glacial and Holocene as reflected in the sequences oflacustrine and mire sediments
Autorzy:
Bałaga, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/2027411.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Lublin Polesie
Late Glacial
Holocene
hydrological changes
pollen analysis
Opis:
The paleoecological research of biogenie sediments sampled in the different lake-mire ecosystems of the Łęczna Włodawa Lake District were the basis of studies on hydrological changes during the Late Glacial and Holocene. The lithological differentiation (spatial and temporal) of lacustrine and mire sediments in the studied sites indicates that the hydrological changes were of local nature. The investigations also evidence a specific functioning of the lakes in this region. Lake basins were formed as a result of the ground ice degradation and the transformation of groundwater circulation in the Late Glacial. The total area of lakes in the Lake District was the largest from the Younger Dryas to the Subboreal chronozone. The gradual lowering ofwater level during the early Holocene resulted in the transformation of sedimentation process, and in the development of typologically differentiated mires and lacustrinc-mire complexes.
Źródło:
Studia Quaternaria; 2002; 37-53
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Asynchronous development of two Late Glacial lake basins near the Drwęca ice-marginal valley (N Poland)
Autorzy:
Gamrat, W. W.
Błaszkiewicz, M.
Andrzejewski, L.
Krześlak, I.
Powiązania:
https://bibliotekanauki.pl/articles/2060377.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Palaeolakes
buried dead ice
Plenivistulian
Late Glacial
Holocene
northern Poland
Opis:
Lacustrine organic sediments were sampled at Gronowo (Chełmno Plateau) and Piotrkowo (Dobrzyń Plateau) located within a widespread system of subglacial channels separated by the large Drwęca ice-marginal valley. They have been examined for their pollen, plant macro-remains and geochemistry, as well as radiocarbon-dated. The analyses have allowed reconstructing the evolution of the area and presenting an asynchronous appearance of two lakes. Before lake sedimentation, glaciolimnic sediments from the end of Plenivistulian, at the site of Piotrkowo, was dated. Lacustrine sedimentation started during the Allerød at Gronowo, and during the Preboreal at Piotrkowo. The different age of the two lakes is ascribed mainly to differences in the Late Glacial drainage conditions which directly affected the melting away of dead-ice blocks buried in the channels.
Źródło:
Geological Quarterly; 2017, 61, 2; 450--464
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Late glacial and holocene environmental changes in the Southern Baltic Sea area based on malacofauna investigations
Autorzy:
Krzymińska, J.
Koszka-Maroń, D.
Pikies, R.
Przezdziecki, P.
Powiązania:
https://bibliotekanauki.pl/articles/1182436.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
późny glaciał
holocen
malakofauna
południowy Bałtyk
Late Glacial
Holocene
Southern Baltic Sea
malacofauna
Opis:
Zmiany klimatyczne, a za tym daleko idące zmiany środowiska w późnym glacjale i holocenie na obszarze południowego Bałtyku mogą być wyjaśniane także przez badania fauny mięczaków. Na obszarze południowego Bałtyku w okresie późnego glacjału występowały gatunki słodkowodne wskazujące na klimat zimny, takie jak: Armiger crista f. cristatus, Gyraulus laevis, Lymnaea peregra, Pisidium casertanum, Pisidium casertanum f. ponderosa, Pisidium milium, Pisidium nitidum, Pisidium obtusale f. lapponicum, Valvata cristata, Pisidium conventus. Akumulacja jeziorna w słodkowodnych zbiornikach strefy przybrzeżnej kontynuowała się w okresie wczesnego holocenu. W tym czasie oprócz gatunków słodkowodnych, zimnolubnych pojawiły się gatunki mięczaków i małżoraczków słodkowodnych, o wyższych wymogach termicznych (Bithynia tentaculata, Physa fontinalis, Pisidium amnicum). Świadczy to o ociepleniu się klimatu w okresie preborealnym. Zrastanie przybrzeżnych zbiorników rozpoczęło się w okresie borealnym i trwało również w okresie atlantyckim. W tym czasie miały miejsce wlewy wód morskich do zbiorników. Wskaźnikiem tego jest liczne występowanie morskich gatunków takich jak: Hydrobia ulvae, Hydrobia ventrosa, Cerastoderma glaucum, Mytilus edulis, Macoma balthica. W osadach piaszczystych w okresie subborealnym i subatlantyckim zdecydowanie przeważała fauna morska.
Źródło:
Polish Geological Institute Special Papers; 2018, 30; 1--70
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vegetation responses to climatic changes during the late glacial according to palaeobotanical data in western Lithuania : a preliminary results
Autorzy:
Kisieliene, D.
Stancikaite, M.
Merkevicius, A.
Namickiene, R.
Powiązania:
https://bibliotekanauki.pl/articles/1186082.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
environmental changes
pollen and plant macroremains
Late Glacial
western Lithuania
Opis:
The organic-rich material has been studied from the bottom part of lacustrine sediments of the Lake Kasuciai, western Lithuania. Radiocarbon dates and palaeobotanical data showed that these sediments accumulated between 13,500 and 9000 14C yr BP. The Late Glacial interstadial is defined by the dominance of Characeae and accumulation of carbonate. The Bolling is characterized by the pioneer taxa and the communities of open habitats. During the Allerod pine replaced the light demanding taxa that show development of a closer woodland habitat and dryness of climate. The short period between Bolling and Allerod with increasing representation of Betula and plants typical for the highly eroded habitats could be correlated with Older Dryas. The onset of the Younger Dryas is marked by degradation of the forest cover and expansion of heliophytic grasses. Entire vegetation cover with birch and pine forest was settled during the Preborial. Formation of calcareous sediments and appearance of thermophilous taxa confirm the climatic amelioration.
Źródło:
Polish Geological Institute Special Papers; 2005, 16; 45--52
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environment and man around Lakes Duba and Pelesa, SE Lithuania, during the Late Glacial and Holocene
Autorzy:
Stančikaite, M.
Kabailiene, M.
Ostrauskas, T.
Guobyte, R.
Powiązania:
https://bibliotekanauki.pl/articles/2059887.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Lithuania
SE Lithuania
Holocene
Late Glacial
environmental changes
human impact
Opis:
Interdisciplinary investigations (pollen and diatom analysis, 14C dating and geological-geomorphological and archaeological data) around Lakes Duba and Pelesa, in SE Lithuania, have elucidated the environmental history and human impact throughout the Late Glacial and Holocene. Aerial photograph interpretations indicate that both lakes are residual basins of one Post-Glacial palaeolake outside the morainic relief of the Nemunas (Weichselian) Glaciation. Pollen assemblages from lacustrine deposits date back to the Older Dryas (Lake Duba) and Alleröd (Lake Pelesa) and cover all chronozones of the Post-Glacial. Diatom analysis has illustrated the palaeoecological conditions in the lakes and helped reconstruct successive water levels throughout the last 12300 radiocarbon years. Diatom abundance and the distribution of the planktonic, benthic and epiphytic species suggest a lowering of Lake Duba and Lake Pelesa at (e.g.) 11900-10900 14C BP, (e.g.) 10000-8100 14C BP and (e.g.) 3700-2500 14C BP. Pollen data suggest that the earliest signs of human impact and local forest clearances data from about (e.g.) 8400-8300 14C BP. The first record of cereal pollen in sediments dates from earlier than (e.g.) 6000 14C BP. Therefore, agriculture was introduced into the area not earlier than the second half of the Midle Neolithic, at about (e.g.) 5000-4400 14C BP. Continous indications of agriculture and progressive clearing of woodland is consistent with the increasing role of a farming economy during the Bronze Age. Since the 1800-1900 14C BP formation of an open canopy, increasing soil erosion and changes in vegetation emphasize the remarkable human impact on the environment.
Źródło:
Geological Quarterly; 2002, 46, 4; 391-410
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geological development of the Nemunas River Delta and adjacent areas, West Lithuania
Autorzy:
Bitinas, A.
Damusyte, A.
Stančikaite, M.
Aleksa, P.
Powiązania:
https://bibliotekanauki.pl/articles/2059891.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Lithuania
Lithuanian Maritime region
Nemunas Delta
Late Glacial
Holocene
geochronology
palaeogeography
Opis:
Geological mapping at a scale of 1:50 000 of the Lithuanian Maritime region has recently been focused on the delta of the Nemunas River and its surroundings. Pollen, diatom and mollusc analyses, lithological investigations, and radiocarbon and optically stimulated luminescence dates have enabled stratigraphic correlation of the Late Glacial and Holocene deposits which make up this delta. Palaeogeographical reconstructions of the southern part of the Lithuanian Maritime region during the maximum extent of the Baltic Ice Lake (~12 000-11 200 years BP), the Ancylus Lake (~8 700-8 500 years BP), the Litorina Sea (~6 100 years BP) and the Post-Litorina Sea (~4 000 years BP) have been made. A geological and geomorphological model of the Nemunas River Delta and its adjacent areas has been constructed. Our results suggest that that part of Nemunas River Delta in Lithuania is very young, having formed during the last 1 000-1 100 years.
Źródło:
Geological Quarterly; 2002, 46, 4; 375-390
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chronology of the last ice sheet decay on the southern Baltic area based on dating of glaciofluvial and ice-dammed lake deposits
Autorzy:
Uścinowicz, Szymon
Adamiec, Grzegorz
Bluszcz, Andrzej
Jegliński, Wojciech
Jurys, Leszek
Miotk-Szpiganowicz, Grażyna
Moska, Piotr
Pączek, Urszula
Piotrowska, Natalia
Poręba, Grzegorz
Przezdziecki, Piotr
Uścinowicz, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2058614.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
southern Baltic area
deglaciation
Late Glacial
Słupsk Bank Phase
OSL dating
Opis:
The paper presents the results of the first OSL dating of glaciofluvial and ice-marginal lake sediments which occur between end moraines of the Słupsk Bank and the Polish coast. The sand and gravel of glaciofluvial deltas on the Słupsk Bank were deposited most likely during a period from 14.3 ±1.2 to 16.6 ±1.4 ka ago. The deposition of silty-sandy sediments of the ice-marginal lake is dated at 14.51 ±0.81 and 14.6 ±1.4 ka years. Likewise, dates ranging from 13.74 ±0.84 to 16.70 ±1.1 ka obtained from low sandy ridges, related to the southern range of the ice-marginal lake in the Gardno-Łeba Lowland, indicate the most likely timing of their deposition. It can be concluded that a short stop of the ice sheet on the Słupsk Bank took place approximately 15.2 ka ago, which could be correlated with the position of the ice sheet front in central Skåne and in northern Lithuania at that time. Older and younger results were also obtained, except the dates mentioned above. The older ages show little sunlight exposure of sediments during their deposition. The younger dates indicate a marine origin of the sediments and show that some parts of glaciofluvial sediments were redeposited and exposed to sunlight at a later stage, most probably when dead-ice blocks were melting.
Źródło:
Geological Quarterly; 2019, 63, 1; 193--208
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deglaciation chronology of the Pandivere and Palivere ice-marginal zones in Estonia
Autorzy:
Saarse, L.
Heinsalu, A.
Veski, S.
Powiązania:
https://bibliotekanauki.pl/articles/2058988.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
deglaciation
Late Glacial
proglacial lakes
AMS 14C radiocarbon dating
Estonia
Opis:
Accelerator mass spectrometry (AMS) 14
Źródło:
Geological Quarterly; 2012, 56, 2; 353-362
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evolution of the southern Baltic coastal zone
Autorzy:
Mojski, J.E.
Powiązania:
https://bibliotekanauki.pl/articles/47713.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
coastal zone
Holocene
post-glacial topography
forecast
Baltic Sea
evolution
Late Glacial
water level
Opis:
This article discusses the formation and evolution of the coastal zone of the southern Baltic from the decay of the last Scandinavian ice-sheet, which took place some 14 ka BP. During the first 4 ka, the shores of the then southern Baltic basins were shaped under the dominant influence of considerable variations in water level and the young, post-glacial topography emerging from under the ice. Later, until the beginning of the Atlantic transgression, the shores were also unstable, because sea level changes resulting from periodic connections with the World Ocean followed one another in rapid succession. Since that transgression destroyed much of the former shoreline, its reconstruction is at best highly problematical, and in some places no longer possible. The maximum range of the Litorina Sea gave rise to a coastal zone that in many places is to this day quite conspicuous in the local topography and sediments. During the last 4 ka, the shoreline has changed relatively little, thus the present shoreline is largely redolent of the original one. In the coming 100 years or so, the abrasion of the cliffs along the southern Baltic shore will probably accelerate, as will the retrogradation of certain sections of the shoreline, with the result that the shoreline will be less of a straight line than it is at present. Land up to a height of 1 m above sea level will be inundated. The greatest changes in the lie of the shoreline are to be expected in the River Wisła (Vistula) delta and around the Zalew Szczeciński (Oderhaff, Szczecin Lagoon).
Źródło:
Oceanologia; 2000, 42, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł

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