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Tytuł:
Rekonstrukcja zmian paleośrodowiskowych w eemskich zagłębieniach bezodpływowych przedpola lądolodu ostatniego zlodowacenia na przykładzie stanowiska Stara Maryśka II (Północne Mazowsze, Polska Centralna)
Paleoenvironmental changes reconstruction in the Eemian kettle holes of the last ice sheet glaciation foregrounds on the example of the Stara Maryśka II site (Northern Mazovia, Central Poland)
Autorzy:
Rychel, Joanna
Sieradz, Dominika
Massalska, Barbara
Standzikowski, Karol
Wasiluk, Radosław
Woronko, Barbara
Nawrocki, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/2204542.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
późny plejstocen
zagłębienie bezodpływowe
warunki peryglacjalne
maksymalny zasięg lądolodu zlodowacenia Wisły
Late Pleistocene
kettle hole
periglacial conditions
palaeoenvironmental changes
maximum limit of the Weichselian (Vistulian) ice sheet
Opis:
Odsłonięta w stanowisku Stara Maryśka II sukcesja osadowa obejmuje górną część interglacjału eemskiego po zlodowacenie wisły. Na podstawie ciągłości zapisu palinologicznego w osadach wypełniających zbiornik odtworzony został przebieg zmian klimatu i środowiska w okresie późnego plejstocenu (MIS5e-MIS2). Wyniki datowań metodą OSL pozwoliły wyróżnić okresy funkcjonowania warstwy czynnej wieloletniej zmarzliny podczas zlodowacenia wisły (MIS4- -MIS2), która jest wyznacznikiem warunków peryglacjalnych panujących przed czołem lądolodu. Oznaczony został również czas formowania się wydm w rejonie stanowiska.
The sedimentary succession exposed in Stara Maryśka II site includes last part of Eemian Interglacial (MIS 5e) to Late Weichselian (MIS2) deposits. On the base of the palynological record in the paleo-lake, the climate and environmental changes during MIS 5e were reconstructed. Optically stimulated luminescence dating of the sands pseudomorphoses of ice wegdes made it possible to distinguish periods of increased aeolian activity during the Weichselian glaciation.
Źródło:
Landform Analysis; 2022, 41; 53--68
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vistulian periglacial and glacial environments in central Poland : an overview
Autorzy:
Dzieduszyńska, Danuta
Petera-Zganiacz, Joanna
Roman, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2058551.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sedimentary record
cold-related conditions
last glacial event
MIS 5d-a-MIS 2
Late Pleistocene
Central European Lowland
Opis:
Vistulian climatic changes are recorded in various sedimentary environments of central Poland, both in the extraglacial zone of the last glaciation and also in the area occupied by the last Scandinavian Ice Sheet, being reflected by palaeobotanical, palaeozoological, sedimentological and geochronological data. The most pronounced morphogenetic processes are linked to a glacial succession in the northern part of the study area, referred to the Upper Plenivistulian. For most of the study area, located in the extraglacial zone, the climatic changes are reconstructed from lake-bog, fluvial, slope and aeolian sedimentary successions. In central Poland, no site has been documented so far where there would be a continuous biogenic record through the whole Vistulian. Environmental changes recorded through the Vistulian include temperature, vegetation and the dynamics of morphogenetic processes, and sedimentary environments most useful for assessing changes occurring at that time may be indicated. The Early Vistulian is best recognized within biogenic deposits, as in the older part of Plenivistulian. The conditions in the earlier part of the Plenivistulian are best reported from fluvial and slope deposits with evidence of permafrost and of glacial conditions, though only in the northern part of the study area. Changing conditions of the Late Vistulian are expressed via well-documented morphogenetic processes occurring in all (except glacial) sedimentary environments, lake-bog and aeolian environments providing the most complete information about the nature of this period. Most of the Vistulian deposits reflect cold periods. There is a distinctive increase in periglacial impacts throughout the Plenivistulian with the apogee during the Upper Plenivistulian and interstadial warmings did not influence this trend. Each sedimentary environment provides significant data about the climate evolution, and processes playing a leading role vary according to the Vistulian stratigraphic unit. The consolidation of findings from regional research has provided new directions for further interdisciplinary studies.
Źródło:
Geological Quarterly; 2020, 64, 1; 54--73
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chronostratigraphy of the late Vistulian in central Poland and the correlation with Vistulian glacial phases
Autorzy:
Dzieduszyńska, Danuta A.
Forysiak, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2025178.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
radiometric methods
14C probability density function
extraglacial environment
last glacial phases
Late Pleistocene
Opis:
The Vistulian decline was a period of rapid environmental events. The authors correlated ages of the last Scandinavian Ice Sheet limits in northern Poland with ages of prominent events adapting the conditions of periglacial environment of Central Poland in response to the Late Vistulian climate warming. Ages from previous thematic geological and palaeogeographical studies were collected. The approach used indicates that despite methodological uncertainties and sometimes inconsistency of ages, it is especially helpful in timing of first warming signals (ca. 19–18 cal ka BP) and establishing of environmentally bipartite 3 millennia of the Oldest Dryas in the extraglacial zone. Abrupt warming at the onset of the Bølling-Allerød is well registered in biotic and abiotic archives available from Central Poland and remains in agreement with the large recession of the southern ice sheet margin.
Źródło:
Studia Quaternaria; 2019, 36; 137-145
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stratigraphic position of tills in the Orłowo Cliff section (northern Poland): a new approach
Autorzy:
Woźniak, Piotr Paweł
Sokołowski, Robert J.
Czubla, Piotr
Fedorowicz, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/2025278.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lithofacies analysis
petrographic composition
till fabric
TL dating
Middle and Late Pleistocene
Nauki o Ziemi
Opis:
The site at Orłowo Cliff was used to analyse the stratigraphic position and palaeogeographic interpretations of the properties and depositional conditions of two basal tills from the Late Pleistocene. A multi-proxy approach involved lithofacies, petrographic analysis of the fine gravel fraction, analyses of indicator erratics and till fabric. TL dating of intra-moraine deposits was used to determine depositional time frames of tills. The sediment profile at Orłowo Cliff shows a distinct reduction in number of Pleistocene units. Obtained dating results suggest the presence of Middle and Late Pleistocene fluvial units. The main issue discussed is the stratigraphic position of the older till (Unit O-4). It can be assumed that this till was deposited probably during the Middle Weichselian (MIS4). At Orłowo Horn the till of Unit O-4 reveals incorporation of the erratic material derived from an older till in the surrounded area (according to petrographic composition – probably from MIS 8). The younger till (Unit O-6) was deposited in the Late Weichselian (MIS 2). Moreover, the till of Unit O-6 is characterised by a significant shift towards the south-west in terms of the erratic origin in Unit O-4.
Źródło:
Studia Quaternaria; 2018, 35; 25-40
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new stratigraphic position of some Early Pleistocene deposits in central Poland
Autorzy:
Bujak, Ł.
Woronko, B.
Winter, H.
Marcinkowski, B.
Werner, T.
Stachowicz-Rybka, R.
Żarski, M.
Woźniak, P. P.
Rosowiecka, O.
Powiązania:
https://bibliotekanauki.pl/articles/2060173.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Late Miocene
Early Pliocene
Early Pleistocene
pollen analysis
palaeomagnetism
mineralogy
Central Poland
Opis:
A new borehole in Rożce (SW Mazovian Lowland) drilled in 2012, combined with a wide variety of research methods (palaeomagnetism, palynological analysis, studies of plant macroremains and textural features of deposits) shed new light on the age and stratigraphic position of the Early Pleistocene deposits, formerly assigned as the Lower Pleistocene. The study focuses on the deposits from 50.7-104.0 m depth, between glacial till of the Nidanian Glaciation (ca. 0.9 Ma) and the Poznań Clays (ca. 5.322 Ma). The deposits situated directly underneath the till (50.7-60.2 m) are related to the Nidanian Glaciation and show a reversed polarity and correlate with the end of the Matuyama Epoch. The deposits from 60.2-104.0 m depth were accumulated during the Early Pliocene, i.e. approximately 5.332-4.6 million years ago. They appear to correlate with the middle part of the Gilbert Palaeomagnetic Epoch and thus they are considerably older than previously thought. The cored section indicates a stratigraphic gap of about 3.5 Ma from the Lower Pliocene to the first advance of the Scandinavian ice sheets into Poland, which are thought to have occurred in the early Middle Pleistocene. The analysed deposits accumulated under variable climatic conditions showing two periods with significant aridity alternated with two periods of increased humidity. Deposits of the arid periods contain no pollen, butaeolian sand quartz grains are found. During periods of more humid climate the area was covered by various types of mixed forest.
Źródło:
Geological Quarterly; 2016, 60, 1; 238--251
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemical properties of the Late Pleistocene loess-soil sequence in Dankowice (Niemcza-Strzelin Hills)
Autorzy:
Raczyk, J.
Jary, Z.
Korabiewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/294751.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
loess-soil sequence
chemical composition
Late Pleistocene
SW Poland
Opis:
Loess-soil sequences provide one of the most continuous and detailed records of the climate changes on land areas in the Quaternary. The Late Pleistocene loess section in Dankowice (Niemcza-Strzelin Hills) is one of the best recognized in SW Poland. For the investigation of the chemical composition of loess-soil sequence in Dankowice, 31 loess samples were tested. Ten main oxides were determined (SiO2, Al2O3, Fe2O3, MnO, MgO, CaO, Na2O, K2O, TiO2 and P2O5) using certified reference materials to obtain good credibility of the analysis. The chemical composition of loess from Dankowice is similar to the results presented in the world loess literature. The characteristic feature is extremely high concentration of the silica. The chemical composition of loess in Dankowice is differentiated within the vertical sequence and confirm previous division of litho-pedostratigraphic units. Therefore, the chemostratigraphic method can be successfully used as a one of lithostratigraphic methods. Decreasing values of the chemical weathering indices to the top of the section may indicate that the source areas of loess silt have provided material over time, less and less transformed by prolonged and intense chemical weathering processes.
Źródło:
Landform Analysis; 2015, 29; 49-61
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Levallois Tradition epigones in the Middle Nile Valley: survey in the Affad Basin
Autorzy:
Osypińska, Marta
Osypiński, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1727950.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Sudan
Southern Dongola Reach
Late Pleistocene occupation
survey
Opis:
The paper presents the results of an archaeological ground survey aimed to record prehistoric settlement landscape in chosen parts of the Southern Dongola Reach (Tergis, Affad and El-Nafab districts). The project fills in the gaps in earlier research on the right bank of the Nile. Numerous new sites were recorded, all reflecting a frequently occupied level of silts and sands originating in the former river valley aggradations. Prospection of locations recorded in 2003 and later demonstrated also the progressing destruction of archaeological sites on the fringes of modern settlement and the new road from Karima to Nawa.
Źródło:
Polish Archaeology in the Mediterranean; 2015, 24(1); 601-626
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The application of malacological analysis in the study of slope deposits: late Pleistocene and Holocene of the Podhale Basin (Carpathians, Poland)
Autorzy:
Alexandrowicz, W. P.
Powiązania:
https://bibliotekanauki.pl/articles/139145.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
molluscs
molluscan assemblage
Slope deposits
Late Pleistocene
Holocene
southern Poland
mięczaki
zespół mięczaków
osady stokowe
późny plejstocen
holocen
Polska Południowa
Opis:
Slope deposits developed on calcareous sandstone and limestone formations in the eastern part of the Podhale Basin (Carpathians) were studied. In total, the analysis included fifteen profiles of such sediments, which revealed the presence of abundant malacofaunas comprising 39 mollusc species. Five faunistic assemblages differing in species composition and structure were defined in the material studied. Individual assemblages correspond to different climatic and environmental conditions, thereby making it possible to interpret the features of the sedimentary environments and specify the age of the deposits. Faunas with Pupilla loessica and Pupilla sterri containing species typical of loess formations are characteristic of deposits from the coldest phase of the last Glacial period (MIS 2). A fauna with Vertigo genesii, with a large proportion of cold-loving and moisture-loving taxa, is typical of the Younger Dryas. Associations that are dominated by shade-loving species, with Discus ruderatus and Discus perspectivus, correspond to the early and middle Holocene respectively. The investigations show that malacological analysis can be successfully applied to the research into slope deposits, enabling both the depositional conditions and the age of the sediments to be determined.
Źródło:
Acta Geologica Polonica; 2015, 65, 2; 245-261
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Osteoderm histology of Late Pleistocene cingulates from the intertropical region of Brazil
Autorzy:
Da Costa Pereira, P.V.L.G.
Victer, G.D.
Porpino, K.O.
Bergqvist, L.P.
Powiązania:
https://bibliotekanauki.pl/articles/945892.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
osteoderm
histology
Late Pleistocene
Pleistocene
Cingulata
mammalia
Glyptodontidae
Pachyarmatherium
paleohistology
intertropical region
Brazil
Opis:
During the Late Pleistocene, several possibly endemic cingulate species, known mostly from isolated osteoderms, carapace fragments, and caudal tubes, coexisted in the Brazilian Intertropical Region. Here, we describe the osteoderm microstructure of Pachyarmatherium brasiliense, as well as the glyptodonts Panochthus greslebini, Panochthus jaguaribensis and Glyptotherium sp., in order to provide additional species-diagnostic characters and shed light on their evolutionary relationships. Pachyarmatherium brasiliense lacks several derived features shared by glyptodonts and pampatheres, such as extensive bone remodeling, fibers arranged in large bundles, and relatively poorly developed layers of compact bone, thus supporting its exclusion from glyptodonts as suggested by a recent cladistic study. The osteoderm histology of P. greslebini resembles that of other species of Panochthus (e.g., Panochthus frenzelianus). By contrast, the presence of relatively thick layers of compact bone, the configuration and size of resorption areas, the absence of randomly oriented lateral fiber bundles, and the absence of an intermediary region between the compact and trabecular bone potentially support the exclusion of Panochthus jaguaribensis from the genus. Finally, osteoderms of the Brazilian specimens of Glyptodontinae share histological features with Glyptotherium floridanus, rather than Glyptodon, thus reinforcing their assignment to Glyptotherium. These results highlight the relevance of histological osteoderm characters in cingulate systematics, ands call for further and more comprehensive studies.
Źródło:
Acta Palaeontologica Polonica; 2014, 59, 3; 543-552
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A small camelid Hemiauchenia from the Late Pleistocene of Hidalgo, central Mexico
Autorzy:
Bravo-Cuevas, V.M.
Jimenez-Hidalgo, E.
Cuevas-Ruiz, G.E.
Cabral-Perdomo, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/22741.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
small camelid
camelid
Hemiauchenia
Late Pleistocene
Hidalgo
Mexico
Camelidae
Pleistocene
paleontology
geological setting
systematics
mandible
dentition
postcranial bone
remains
tooth
fossil
Opis:
Pleistocene camels from Mexico include representatives of llamas and camels. Their record spans from the Early Blancan to the Late Pleistocene, based on several localities in the northern, northwestern and central parts of the country, with members of the genus Hemiauchenia being particularly well represented. New specimens of a small llama, collected in the state of Hidalgo, central Mexico, are assigned to Hemiauchenia gracilis owing to a combination of cranial and postcranial characters, including a short upper premolar−molar series, the presence of a two−rooted P3, molars covered by a thin layer of cementum, U−shaped molar crescents, well−developed styles and ribs, a small degree of crenulation, a relatively short lower tooth row, the lack of p1 and p3, weakly developed anteroexternal stylids, a shallow and slender mandible, and long and slender metatarsals and phalanges. The material described here extends the Pleistocene geographic distribution of H. gracilisfrom northern to central Mexico, and its biochronological range from the Early Blancan to the Late Pleistocene (Rancholabrean), thus making it the southernmost record and the geochronologically youngest occurrence of this species in North America. The mesowear pattern of the material from Hidalgo suggests that these animals were mainly browsers. Their estimated body mass resembles that of Blancan specimens from Guanajuato, implying that this species maintained approximately the same body mass throughout its biochronological range in central Mexico.
Źródło:
Acta Palaeontologica Polonica; 2012, 57, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphometric variation of reindeer remains (Rangifer tarandus Linnaeus, 1758) from Late Pleistocene cave localities in Poland
Autorzy:
Stefaniak, K.
Piskorska, T.
Witkowska, A.
Wojtal, P.
Powiązania:
https://bibliotekanauki.pl/articles/191218.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Rangifer tarandus
morphometry
Late Pleistocene
Polska
Opis:
The paper deals with the morphometric analysis of remains of the reindeer Rangifer tarandus Linnaeus, 1758 from 20 Late Pleistocene cave localities in Poland. In most of the localities, the species was the most abundant component of the large mammal fauna; the remains came from individuals, killed by predators, including man. The measurements of the remains were compared with those of reindeer from localities in Germany, Moldova, Ukraine and Russia. The measurements of the reindeer from Poland were intermediate between the smaller and more slender reindeer from north-western Europe and the larger reindeer from southern and eastern Europe; the antlers from the localities studied mainly represented the tundra form of Rangifer tarandus. The forest form of the species was represented by a few antlers. With respect to the ages of individuals, the reindeer from the Polish sites belonged to the age classes of under 2 years, 5–6 years and 6–7 years.
Źródło:
Annales Societatis Geologorum Poloniae; 2012, 82, 2; 177--191
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przebieg i korelacja sukcesji pyłkowych późnego plejstocenu na terenie Polski i Białorusi
The course and correlation of the Late Pleistocene pollen sequences from Poland and Belarus
Autorzy:
Granoszewski, W.
Winter, H.
Rylova, T. B.
Savcenko, I. E.
Powiązania:
https://bibliotekanauki.pl/articles/2074921.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Late Pleistocene
Eemian
Vistulian glaciation
Polska
Belarus
pollen analysis
palaeoclimate
późny plejstocen
interglacjał eemski
zlodowacenie Wisły
Polska
Białoruś
analiza pyłkowa
paleoklimat
Opis:
The most representative and long Late Pleistocene pollen sequences covering the late glacial of the penultimate glaciation (Warta/Pripiat), the last interglacial (Eemian/Muravian) and the early glacial of the Last Glaciation (Vistulian/Poozerie) from the territory of Poland and Belarus have been correlated. The resemblance ofpollen spectra in these pollen sequences and a parallel succession of Regional Pollen Assemblage Zones in the considered time intervals suggest that the natural environment of Poland and Belarus underwent synchronous changes under unidirectional climatic transformations. Qualitative and quantitative features of the Regional Pollen Assemblage Zones show similarities and differences in vegetation and climate changes in the study area. A comparison of the pollen spectra from Poland and Belarus suggests that both territories were affected by a similar climate particularly during the cold intervals. Some differences between the compositions of the pollen spectra were noticed as concerns the interglacial period. For instance, Abies and Taxus pollen as well as significantly high percentages of Calluna vulgaris pollen in NE Poland towards the end of the period are present only in the Polish sections. This may suggest a more Atlantic type of the climate during the Last Interglacial in Poland than in Belarus.
Źródło:
Przegląd Geologiczny; 2012, 60, 11; 605--614
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chronostratigraphy and changes of environment of Late Pleistocene and Holocene at Starunia palaeontological site and vicinity (Carpathian region, Ukraine)
Autorzy:
Sokołowski, T.
Stachowicz-Rybka, R.
Powiązania:
https://bibliotekanauki.pl/articles/191571.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Late Pleistocene
Holocene
fluvial deposits
environment
Starunia
Carpathian region
Ukraine
Opis:
This paper presents the results of absolute dating and biostratigraphical analysis carried out for alluvial sediments of an abandoned Starunia ozokerite mine located in the Velyky Lukavets River valley, in which large mammal remains were discovered in the first half of the 20th century. The sediments build up three terrace levels. The highest one, up to 8 m high (terrace II), is likely to be associated with a stage of aggradation, as well as with a short episode of valley broadening, which occurred in the Weichselian Late Pleniglacial. The lower one, 4 m high (terrace I), is most likely to be linked with the Holocene, despite a considerable transformation of its top due to mining activity. The lower part of this terrace cover bears coarse-grained channel sediments dated to 120.6-58.9 ka BP (Eemian Interglacial?-Early Pleniglacial - OIS 5e, 4 and 3), and overbank (distal floodplain) mud with intercalations of biogenic deposits (peat, peat mud and biogenic mud). The overbank deposits are dated to 48.2-11.11 ka BP (Glinde Interstadial?-Younger Dryas, OIS 3-2) and are overlain by Holocene (OIS 1) mud and biogenic deposits. In boreholes drilled in the vicinity of the present-day river channel, younger sediments occur more frequently. These include sediments originating from the Late Weichselian overlain by Holocene sediments. However, sediments originating exclusively from the Holocene are infrequent. The deposition of sediments took place in specific conditions of a permanent saturation of the environment with brine, petroleum and thickened bitumen. In the longest period of deposition (48.2-1.27 ka BP), ephemeral swamps, ponds and lakes were developed in different parts of the floodplain. They were marked by the presence of: Juncus glaucus/effusus, J. articulatus, Typha sp., Batrachium sp., Potamogeton filliformis, Bidens tripartita, Ranunculus sceleratus and Phragmites communis, as well as by halophytic species, like: Zannichellia palustris, Triglochin maritimum, Schoenoplectus tabernemontani, Puccinelia distans and Eleocharis palustris. Rhythmic oscillations between cold and warm climatic conditions, typical of the Weichselian age and well identified in Western Europe, are here marked by the changes of plant communities (woody assemblages passing into steppe and tundra), but are not noticeably recorded in the sediments of the Velyky Lukavets River. This shows that the greatest part of the discussed period involved the formation of poorly differentiated silty overbank sediments with intercalations of biogenic sediments. However, the variability of sediments provides evidence for extreme events which occurred in the Holocene.
Źródło:
Annales Societatis Geologorum Poloniae; 2009, 79, No 3; 315-331
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lacustrine deposits in northern part of the Knyszyńska Forest - the remains of water bodies
Utwory jeziorne w północnej części Puszczy Knyszyńskiej - pozostałości po zbiornikach wodnych
Autorzy:
Micun, K.
Powiązania:
https://bibliotekanauki.pl/articles/292941.pdf
Data publikacji:
2009
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
gytie
późnoplejstoceńskie pojezierze
Puszcza Knyszyńska
torfowiska
Knyszyńska Forest
Late Pleistocene lakeland
lacustrine deposits
peatlands
Opis:
The aim of this study was to delimit lacustrine deposits underlaying present peatlands. On this basis, the location of water bodies in late Pleistocene and early Holocene was recognized. The lakes' occurrence was presented on the background of geomorphological conditions. Lacustrine deposits occur mainly in depressions of the northern part of the Knyszyńska Forest. They are placed in upper parts of the Czapielówka River, Jałówka River, middle Sokołda River and upper Kumiałka River catchments. The thickness of gyttja varies between 0.4 and 2.5 m. These are detrital, calcareous and clay-calcareous gyttjas. Lacustrine sediments fill the bottoms of various melt-out depressions. The origin of these depressions, as well as the whole glacial relief of the terrain, is often linked to deglaciation of the Warta ice sheet. However, kame deposits in the Janów village are younger than Warta glaciation. Moreover, the catchment relief of the upper Kumiałka River is similar to the relief which originates from Vistulian glaciation. Besides, there are boulder deposits directly under the lacustrine deposits. These three facts indicate a younger age of the melt-out depressions in the upper Kumiałka River catchment.
W artykule przedstawiono wyniki badań litologicznych i geomorfologicznych przeprowadzonych w północnej części Puszczy Knyszyńskiej. Celem badań było rozpoznanie rozprzestrzenienia utworów jeziornych, występujących pod współczesnymi torfowiskami. Na tej podstawie odtworzono rozmieszczenie i zasięg zbiorników wodnych w późnym plejstocenie i wczesnym holocenie na tle uwarunkowań geomorfologicznych. Stwierdzono stosunkowo powszechne występowanie utworów jeziornych w dnach obniżeń w północnej części Puszczy Knyszyńskiej. Występują one w górnych fragmentach zlewni Czapielówki, Jałówki, środkowej Sokołdy, w rejonie Czarnej Białostockiej oraz dalej na północy, w zlewni górnej Kumiałki. Miąższość gytii wynosi od 0,4 do 2,5 m. Są to gytie detrytusowe, węglanowe i ilasto-wapienne. Utwory jeziorne zalegają w dnach różnego rodzaju obniżeń wytopiskowych. Genezę wytopisk, jak i całej rzeźby glacjalnej tego terenu, łączy się najczęściej z zanikiem lądolodu zlodowacenia Warty. Jednak wiek utworów kemowych w Janowie, nawiązanie rzeźby do niższych, młodszych poziomów morfologicznych oraz występowanie bezpośrednio pod osadami jeziornymi utworów ablacyjnych i zwałowych przemawiają za młodszym wiekiem wytopisk położonych w zlewni górnej Kumiałki.
Źródło:
Journal of Water and Land Development; 2009, no. 13b; 137-147
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A critical review and reinterpretation of bio-, litho- and seismostratigraphic data of the Southern Baltic deposits
Autorzy:
Zachowicz, J.
Miotk-Szpiganowicz, G.
Kramarska, R.
Uścinowicz, Sz.
Przedziecki, P.
Powiązania:
https://bibliotekanauki.pl/articles/1204982.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pollen and diatoms diagrams
14C datings
bio- litho- and seismostratigraphy
Late Pleistocene
Holocene
southern Baltic Sea
Opis:
The aim of this study was the reinterpretation of the published and unpublished Late-Pleistocene and Holocene pollen and diatom diagrams of deposits from the sedimentary basins of the Southern Baltic Sea and the correlation of the distinguished biostratigraphic units with lithological parameters, seismostratigraphic units. Chronostratigraphic subdivision of the Late Pleistocene and Holocene was also made. To facilitate the correlation and reinterpretation of the results of biostratigraphic (palynological and diatom) analyses, new unified and simplified diagrams were drawn using the POLPAL software. Such diagrams were constructed for all the sites under comparison, even for those of no numerical data. In such cases, the published diagrams were scanned and their percentage values were the basis for new diagrams. A review and reinterpretation of biostratigraphic data show an almost complete lack of palynological documentation and diatom diagrams for the Late Pleistocene period and poor documentation for the Early Holocene. Middle and Late Holocene Baltic muds have the best biostratigraphic documentation and radiocarbon dating, which greatly facilitates their location on the geological time scale. Among the Southern Baltic postglacial sediments three lithostratigraphic units were identified. They differ in their lithological features reflecting the conditions prevalent in the sedimentary basin during deposition. It should be noted that these units meet no formal criteria for distinguishing lithostratigraphic units. Similarly, within the Late Pleistocene and Holocene sediments of Southern Baltic deep-water basins, three main seismostratigraphic complexes have been identified. The integrated analysis of seismoacoustic profiles, lithological profiles of cores and reinterpretated biostratigraphic data allow a correlation of the bio-, litho- and seismostratigraphic units with chronostratigraphic units and Baltic evolutionary phases.
Źródło:
Polish Geological Institute Special Papers; 2008, 23; 117-138
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

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