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Wyświetlanie 1-15 z 33
Tytuł:
Isolation of an atypical pigeon paramyxovirus type 1 in Poland
Autorzy:
Smietanka, K.
Minta, Z.
Powiązania:
https://bibliotekanauki.pl/articles/31501.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
avian paramyxovirus
Polska
isolation
paramyxovirus infection
paramyxovirus type 1
pigeon
pigeon paramyxovirus type 1
poultry
Opis:
In this study, a pigeon paramyxovirus type 1 (PPMV-1) isolated from a flock of ornamental pigeons in Poland in 2010 is described. The PPMV-1/Poland/H2/10 isolate showed the amino acid sequence at the cleavage site of F2/F1 ¹¹²KRQKRF¹¹⁷ i.e. typical of virulent strains. Despite having the monoclonal antibody binding pattern typical of pigeon variants PPMV-1 (antigenic group “P”), the Polish isolate clustered into genetic sublineage 4a, which is usually associated with PMV-1 isolated from poultry.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermic weather types in Hel and atmospheric circulation types
Termiczne typy pogody w Helu a typy cyrkulacji atmosferycznej
Autorzy:
Baranowski, D.
Kirschenstein, .
Powiązania:
https://bibliotekanauki.pl/articles/84823.pdf
Data publikacji:
2009
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
thermic weather type
weather type
Hel resort
atmospheric circulation
circulation type
Polska
annual number
Opis:
The main purpose of the article is the analysis of the relations between thermic weather types in Hel and types of circulation from Osuchowska-Klein’s classification (1978). Thermic types have been constructed on the basis of A. Woś’s classification of weather types (1993). As a result, in the study eleven thermic types have been distinguished and grouped into three categories of weather: warm, transitory and frosty. Detailed analysis has revealed that the frequency of thermic weather types in particular types of circulation is determined by the character of circulation (cyclonic/anticyclonic) as well as by its direction. The most numerous types of circulation over Poland: E (north-eastern anticyclonic) and CB (north-western cyclonic) most often are accompanied by warm and transitory weather. In Hel the warm weather group is conditioned mainly by the circulation types associated with the advection of the air from the West or South; transitory and frosty groups are related to the types of circulation conditioning the airflow from the northern or eastern sector.
Zasadniczym celem pracy było określenie częstości występowania w Helu termicznych typów pogody (w latach 1976-1995), w zależności od typu cyrkulacji atmosferycznej (według klasyfikacji B. Osuchowskiej-Klein 1978). Termiczne typy pogody wyróżniono na podstawie klasyfikacji zaproponowanej przez A.Wosia (1993), opartej na dobowych warunkach pogodowych. W niniejszym opracowaniu jedynym kryterium grupowania pogody w klasy były charakterystyki termiczne z tej klasyfikacji. Biorąc pod uwagę dobowe wartości temperatur ekstremalnych (tmax, tmin), wyróżniono trzy podstawowe grupy pogód: ciepłe, przejściowe oraz mroźne, które w zależności od wartości średniej dobowej temperatury powietrza podzielono na 11 termicznych typów pogody. W opracowaniu, w pierwszej kolejności określono typy decydujące o charakterze cyrkulacji nad obszarem Polski, a następnie przeanalizowano towarzyszące im termiczne typy pogody w półroczu chłodnym (X-III), ciepłym (IV-IX) oraz w skali roku. Uzyskane wyniki pozwalają na wysnucie następujących wniosków. Cyrkulacja atmosferyczna w dużej mierze determinuje częstość występowania termicznych typów pogody w Helu, przy czym rola kierunku adwekcji mas powietrza jest większa niż charakter (cyklonalny/antycyklonalny) układu barycznego. Występowaniu pogód ciepłych sprzyja większa frekwencja typów cyrkulacji charakteryzujących się napływem powietrza z sektora południowego i zachodniego. Pogody przejściowe i mroźne towarzyszą najczęściej typom cyrkulacji sprowadzającym do Polski powietrze z północy lub ze wschodu. Najliczniej reprezentowanym typem pogody jest pogoda umiarkowanie ciepła, która pojawia się najczęściej późną wiosną i jesienią (z maksimum w październiku) przy najmniejszej częstości w lutym. Do grupy typów o dużej frekwencji należy ponadto: pogoda bardzo ciepła – notowana wyłącznie od kwietnia do października oraz pogoda chłodna – występująca od października do maja. W półroczu chłodnym występuje większe zróżnicowanie termicznych typów pogody w zależności od typu cyrkulacji atmosferycznej.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2009, 13 part I
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new type of colony in Silurian (upper Wenlock) retiolitid graptolite Spinograptus from Poland
Autorzy:
Kozlowska, A.
Dobrowolska, K.
Bates, D.E.B.
Powiązania:
https://bibliotekanauki.pl/articles/22266.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
new type
colony
Silurian
retiolitid graptolite
Spinograptus
Graptoloidea
Retiolitidae
Polska
paleontology
Opis:
The new retiolitid species, Spinograptus tubothecalis, is described from the Colonograptus praedeubeli and C. deubeli biozones from two localities in Poland: a borehole on the East European Platform and the Holy Cross Mountains. This was a recovery phase after the severe Silurian Cyrtograptus lundgreni Event. The new species has a unique, previously undescribed form of finite rhabdosome. Unlike the species Spinograptus reticulolawsoni and S. lawsoni, in which the fi− nite rhabdosomes taper distally, its rhabdosome is parallel−sided with the two distal thecae developed as isolated tubes without genicular processes, with a small appendix between them. The new species also has preserved membranes of the sicula, thecae and ancora sleeve, similar to a few species of Spinograptus from the lower Homerian. Spinograptus tubothecalis, like Spinograptus clathrospinosus and S. spinosus, has paired reticulofusellar genicular processes on the pre−thecal ventral orifices, similar to but shorter than thecal processes. Transverse rods, a rare character in post−Cyrto− graptus lundgreni Event retiolitids occur in the new species in rudimentary form.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Liverworts of the nature reserves in Wielkopolska. 3. 'Dabrowa kolo Biadek Krotoszynskich'
Watrobowce rezerwatow przyrody Wielkopolski. 3. 'Dabrowa kolo Biadek Krotoszynskich'
Autorzy:
Gorski, P.
Powiązania:
https://bibliotekanauki.pl/articles/878542.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
habitat type
nature reserve
soil type
Polska
liverwort
vegetation
Dabrowa n.Biadek Krotoszynskich Reserve
Wielkopolska region
forest
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2006, 10
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ornithine transcarbamylase gene mutations and genotype-phenotype correlation in Polish patients with hyperammonemia type 2
Autorzy:
Popowska, E
Ciara, E.
Rokicki, D.
Pronicka, E.
Powiązania:
https://bibliotekanauki.pl/articles/2043869.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metabolic disease
genotype-phenotype correlation
polymorphism
patient
Polska
ornithine transcarbamylase
urea cycle
child
hyperammonemia type 2
mitochondrial enzyme
gene mutation
Źródło:
Journal of Applied Genetics; 1999, 40, 1; 43-52
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Serological evidence of lack of contact with caprine herpesvirus type 1 and bluetongue virus in goat population in Poland
Autorzy:
Czopowicz, M.
Kaba, J.
Szalus-Jordanow, O.
Nowicki, M.
Witkowski, L.
Frymus, T.
Powiązania:
https://bibliotekanauki.pl/articles/30762.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
serological evidence
caprine herpesvirus type 1
bluetongue virus
goat
population
Polska
seroprevalence
small ruminant
animal infection
Opis:
Investigation into herd-level seroprevalence of caprine herpesvirus type 1 (CpHV-1) and bluetongue virus (BTV) was conducted in 2007 in Poland. It involved the entire population of goats covered by a milk recording program in 2007, which included 49 goat herds. The number of goats examined in each herd was determined statistically in order to detect the presence of at least one seropositive animal in a herd with a 95% probability and simple random method of sampling was applied. No antibodies to CpHV-1 or BTV were detected. Further calculations were carried out to determine the herd-level true seroprevalence, taking into account sensitivity and specificity of the test as well as several other factors. It can be concluded that till the middle of 2007 population of Polish goats covered by the milk recording program remained negative with respect to CpHV-1 and BTV.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Types of Rationality in Discourses on Work in (Post)Transformation Poland
Autorzy:
Kubala, Konrad
Powiązania:
https://bibliotekanauki.pl/articles/2106778.pdf
Data publikacji:
2022-07-31
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Rationality
Type of Rationality
Work
Reflexive Modernization
Polska
Opis:
Rationality is the key concept for understanding the reproduction of social life in the era of reflexive modernization. A fusion of lessons learned from the constructivist view of the world and analysis of the hermeneutic category of pre-understanding has become the basis of my belief that rationality is nowadays the basic modal concept, and the forms of its existence shape the order of social life. In my research practice, rationality has become a link between my interest in work and the theory of social order development. In this paper, I briefly present the relations between the notion of rationality and the theory of reflexive modernization. Then, I present my research path and the tools used in the analyses. The most important part is devoted to the effects of the conducted research. I classify and describe the types of rationality present in discourses on work in Poland. The discourses of politicians, experts, and the so-called “ordinary people” were analyzed.
Źródło:
Qualitative Sociology Review; 2022, 18, 3; 70-85
1733-8077
Pojawia się w:
Qualitative Sociology Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie bonitacji wzrostowej drzewostanów daglezjowych w Polsce
Variability of the site index of Douglas fir stands in Poland
Autorzy:
Bijak, S.
Powiązania:
https://bibliotekanauki.pl/articles/987057.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
daglezja zielona
Pseudotsuga menziesii
drzewostany daglezjowe
wzrost drzewostanu
bonitacja wzrostowa
siedliska lesne
bonitacja siedliska
gleby lesne
rzezba terenu
Polska
site index
soil type
forest site type
relief features
pseudotsuga menziesii
Opis:
The objective of the study was to analyse the site index (SI) of Douglas fir (Pseudotsuga menziesii) stands in relation to the forest habitat type, soil type and relief characteristics. We utilised infor− mation available in the Information System of the State Forests in Poland that included selected parameters describing habitat conditions and dendrometric characteristics of Douglas fir stands. In total, processed data referred to 863 stands with a total area of 1,644.45 ha. As the SI distribution was not consistent with the normal one (Shapiro−Wilk test, p <0.0001) we applied Kruskal−Wallis or Mann−Whitney tests to assess the significance of observed differences. Site index of surveyed stands ranged from 19.9 to 47.8 m, 32.6 m on average (standard deviation of 3.3 m). Douglas fir in northern and southern Poland characterized by higher SI than in western and south−western part of the country (HK−W=83.5; p<<0.001; fig. 2). Forest habitat type significantly distinguished analysed stands (HK−W=30.1; p<<0.001). The highest SI values were observed for mixed deciduous habitats (fig. 3). For more fertile fresh deciduous habitats Douglas fir achieved slightly lower site index, while the least fertile mixed coniferous habitats are characterized by significantly lower SI. Habitat moisture variant had no significant effect on the average SI values (HK−W=2.6; p=0.269). The highest values were found in strongly fresh habitats (32.8 ±4.1 m), while the lowest in the humid variant (31.7 ±3.4 m). We found significant influence of soil type (HK−W=23.2, p<0.001) even though the average SI values for each category were relatively similar (fig. 4). The highest values were observed for Cambisols (33.3 ±3.7 m), while the lowest for Arenosols (32.1 ±3.0 m). Particle size distribution is an important factor for Douglas fir site index (tab.). We found that the heavier material (the higher the content of silt and clay), the significantly higher SI values (HK−W=16.9; p=0.001). Mean SI for stands growing on former farmlands (32.0 ±3.3 m) and on forest areas (32.7 ±3.3 m) were not significantly different (ZM−W=1.73; p=0.084). There was no significant effect of the relief forms on site index surveyed Douglas fir stands apart from the fact that stands growing on slopes are characterized by significantly higher SI (ZM−W=1.99; p=0.047).
Źródło:
Sylwan; 2017, 161, 03; 208-217
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modifying Type A in a Nonclinical Population of Polish Managers
Autorzy:
Żołnierczyk-Zreda, D.
Cieślak, R.
Powiązania:
https://bibliotekanauki.pl/articles/91109.pdf
Data publikacji:
2001
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
occupational stress
well-being
perceived role stress
stres
ratownictwo górnicze
Polska
Opis:
Type A is widely treated as a risk of diseases (mostly coronary heart diseases) and stress, including occupational stress. The purpose of the study was to evaluate the efficiency of intervention in modifying Type A in 25 managers in comparison with 38 Type A controls, who did not participate in the intervention. Additionally, the usefulness of the intervention was analysed when reactivity, as a temperamental dimension of Type A participants, was taken into account. High reactivity of Type A persons was assumed here as the presumed cause of the negative consequences in their health and well-being. The results showed a significant reduction in stress-related emotional symptoms, like depression, anxiety, anger, self-esteem, positive affects due to the intervention. These changes with the reduction in work ambiguity were greater in high reactive Type As than in low reactive ones.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2001, 7, 3; 309-332
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the tourist function of Kujawy health resorts (based on the capacity and type of accommodation)
Autorzy:
Matczak, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/627565.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
changes
accommodation structure
Kujawy health resorts
Polska
Opis:
The article is an attempt to verify the hypothesis that the tourist function in Polish health resorts is becoming increasingly diversified. It presents data concerning the capacity and type of accommodation in three Kujawy health resorts, as well as their amenities. The data was provided by the Local Data Bank at the Central Statistical Office (GUS), and refers to the period between 1995 and 2018. The study findings point to the increasingly diversification of the tourist function in Kujawy health resorts. The greatest changes have been identified at Ciechocinek which can currently be defined as a tourism and health resort. Less advanced changes have been found in Inowrocław, while Wieniec-Zdrój still remains a typical spa with a marginal share of other functions. Based on official statistics, the author has identified general trends taking place in health resort infrastructure. Only a limited quantitative analysis of the relationship between the health and tourist functions of Kujawy health resorts has been made, mostly due to the incompleteness of the statistical data.
Źródło:
Turyzm; 2019, 29, 1; 53-62
0867-5856
2080-6922
Pojawia się w:
Turyzm
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taylor-type Rules in Poland: A Historical Analysis of Monetary Policy
Rys historyczny polityki pieniężnej w Polsce: reguła Taylora
Autorzy:
Janecki, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/907599.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
monetary molicy
central banks policies
Polska
Opis:
W artykule omówiono zagadnienie dotyczące prowadzenia w Polsce polityki pieniężnej przy wykorzystaniu metodologii, którą zaproponował John B. Taylor. Funkcja, znana powszechnie pod nazwą „reguły Taylora”, opisuje optymalną politykę pieniężną, prowadzoną w gospodarce zamkniętej, gdzie stopy procentowe ustalane przez władze monetarne zależą od kształtowania się odchylenia realnego produktu krajowego brutto od produktu potencjalnego oraz odchylenia stopy inflacji od wyznaczonego celu inflacyjnego. Toteż najpierw podsumowano różne podejścia do koncepcji Taylora oraz zaprezentowano różne problemy dotyczące obliczeń „reguły Taylora”. Następnie przedstawiono metodologię zastosowaną do obliczenia „stopy Taylora” dla polskiej gospodarki dla okresu 1999-2004. Wyniki obliczeń oraz ocenę prowadzonej przez bank centralny polityki pieniężnej w Polsce zawarto w końcowej części artykułu.
This paper examines a history of the Polish monetary policy using the framework proposed by John B. Taylor. The “Taylor rule” describes an optimal monetary policy in a closed economy, where interest rates depend on deviation of real output from potential output and on deviation of rate of inflation from the target rate of inflation. The paper is organized as follows. At the beginning we briefly summarize different views of “Taylor rule”, a methodology of the monetary policy rules for closed and open economies and main problems in “Taylor rule” calculations. Then we focus on methods of calculation Taylor-type reaction functions for Poland over the period from 1999 to 2003. The results of the calculation and historical evaluation of monetary policy in Poland will conclude the paper.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2005, 192
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lokomotywa wielosystemowa typu E186 serii EU43
Multisystem locomotive type E186 class EU43
Autorzy:
Gawłowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/250299.pdf
Data publikacji:
2008
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
E186
lokomotywa
Niemcy
Polska
transport szynowy
Germany
locomotive
Polska
rail transport
Opis:
22 listopada 2007 r. PKP CARGO S.A. i Angel Trains Polska Sp. z o.o. podpisały umowę gwarantującą pozyskanie sześciu nowoczesnych lokomotyw wielosystemowych typu E186, dla których nadano oznaczenie EU43, de facto juz w pewnym sensie "historyczne". Lokomotywy serii EU43 mają już, ważne do 31 marca 2009r. świadectwo dopuszczenia do eksploatacji typu pojazdu kolejowego wydane przez Prezesa Urzędu Transportu Kolejowego. Niebawem otrzymają także świadectwo dopuszczenia wydane przez Federalny Urząd Kolejowy w Niemczech (EBA). Zgodnie z obowiązującymi przepisami, Prezes Urzędu Transportu Kolejowego uzgodnił dla lokomotyw serii EU43 nowe numery dwunastocyfrowe. Po zakończeniu cyklu niezbędnych prób i jazd szkoleniowych, począwszy od lutego bieżącego roku, lokomotywy zostaną skierowane do obsługi pociągów na polskich i niemieckich szlakach kolejowych.
Źródło:
TTS Technika Transportu Szynowego; 2008, 1-2; 17-24
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Program Copernicus źródłem informacji o dominującym typie drzewostanu w Polsce – ocena dokładności krajowej warstwy wysokorozdzielczej
Copernicus Program as a source of information on the dominant leaf type in Poland – assessment of the accuracy of the national high resolution layer
Autorzy:
Mirończuk, A.
Leszczyńska, A.
Hościło, A.
Powiązania:
https://bibliotekanauki.pl/articles/979243.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
program Copernicus
dane satelitarne
warstwa wysokorozdzielcza
lasy
stopien zmieszania
Polska
leśnictwo
źrodła informacji
typy lasów
copernicus
high resolution layers
forest type
remote sensing
Sentinel-2
Opis:
Information on the spatial distribution and variability of forests is important in monitoring of forest resources, biodiversity assessment, threat prevention, estimation of carbon content and forest management. The Pan−European High Resolution Layers (HRLs) produced as part of the European Earth Monitoring Programme – Copernicus provide detailed information on the land cover characteristics in Europe. The HRLs are produced using satellite imagery based on an interactive rule−based classification. There are the following HRL themes: imperviousness, forest, water and wetness and grasslands. The HRLs are available for the reference year 2012 and 2015, at the spatial resolution of 20 m. The forest related HRL consists of tree cover density, dominant tree type and forest type products. In this study, we performed a) the qualitative and quantitative analysis of the accuracy of the dominant leaf type (DLT) layer for the 2015 year at the national scale, and b) detailed analysis of the data quality at the forest stand level over the selected forest districts. The DLT layer was compared with the national orthophotos. The detailed analysis was carried out using Sentinel−2 images and forest inventory data obtained from the Forest Data Bank over the selected forest districts. The accuracy analysis of the national DLT layer revealed the high omission error equal to 18.8%, and lower commission error of 5.4%. The omission error is mostly related to the omitted orchards and young forest plantations, which are included in the DLT layer. The commission error of the broadleaved forest is related mostly to the small patches of coniferous forest that was misclassified as broadleaved. In general, commission errors were identified more frequently in broadleaved forest than in the coniferous forest. In many locations the patches of coniferous forest were misclassified as broadleaved forest. In general, the area of the broadleaved forest is overestimated.
Źródło:
Sylwan; 2020, 164, 02; 151-160
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A lost carbonate platform deciphered from clasts embedded in flysch: Štramberk-type limestones, Polish Outer Carpathians
Autorzy:
Hoffmann, Mariusz
Kołodziej, Bogusław
Kowal-Kasprzyk, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/1835996.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
reefs
facies
Štramberk Limestone
Silesian Ridge
Jurassic
Cretaceous
Carpathian Basin
Polska
Opis:
Limestones designated the Štramberk-type are the most common carbonate exotic clasts (exotics) embedded in the uppermost Jurassic–Miocene flysch deposits of the Polish Outer Carpathians. About 80% of stratigraphically determinable carbonate exotics from the Silesian, Sub-Silesian and Skole units (nappes) are of Tithonian (mostly)–Berriasian (sporadically Valanginian) age. A study of these exotics revealed eight main facies types: coral-microbial boundstones (FT 1), microencruster-microbial-cement boundstones (FT 2), microbial and microbial-sponge boundstones (FT 3), detrital limestones (FT 4), foraminiferal-algal limestones (FT 5), peloidalbioclastic limestones (FT 6), ooid grainstones (FT 7), and mudstones-wackestones with calpionellids (FT 8). Štramberk-type limestones in Poland and the better known Štramberk Limestone in the Czech Republic are remnants of lost carbonate platforms, collectively designated the Štramberk Carbonate Platform. Narrow platforms were developed on intra-basinal, structural highs (some of them are generalized as the Silesian Ridge), with their morphology determined by Late Jurassic synsedimentary tectonics. An attempt was made to reconstruct the facies distribution on the Tithonian–earliest Cretaceous carbonate platform. In the inner platform, coral-microbial patch-reefs (FT 1) grew, while the upper slope of the platform was the depositional setting for the microencruster-microbial-cement boundstones (FT 2). Microbial and microbial-sponge boundstones (FT 3), analogous to the Oxfordian–Kimmeridgian boundstones of the northern Tethyan shelf (also present among exotics), were developed in a deeper setting. In the inner, open part of the platform, foraminiferal-algal limestones (FT 5) and peloidal-bioclastic limestones (FT 6) were deposited. Poorly sorted, detrital limestones (FT 4), including clastsupported breccias, were formed mainly in a peri-reefal environment and on the margin of the platform, in a high-energy setting. Ooid grainstones (FT 7), rarely represented in the exotics, were formed on the platform margin. Mudstones-wackestones with calpionellids (FT 8) were deposited in a deeper part of the platform slope and/or in a basinal setting. In tectonic grabens, between ridges with attached carbonate platforms, sedimentation of the pelagic (analogous to FT 8) and allodapic (“pre-flysch”) Cieszyn Limestone Formation took place. The most common facies are FT 4 and FT 1. Sedimentation on the Štramberk Carbonate Platform terminated in the earliest Cretaceous, when the platform was destroyed and drowned. It is recorded in a few exotics as thin, neptunian dykes (and large dykes in the Štramberk Limestone), filled with dark, deep-water limestones. Reefal facies of the Štramberk Carbonate Platform share similarities in several respects (e.g., the presence of the microencrustermicrobial-cement boundstones) with reefs of other intra-Tethyan carbonate platforms, but clearly differ from palaeogeographically close reefs and coral-bearing facies of the epicontinental Tethyan shelf (e.g., coeval limestones from the subsurface of the Carpathian Foredeep and the Lublin Upland in Poland; the Ernstbrunn Limestone in Austria and Czech Republic). Corals in the Štramberk Limestone and Štramberk-type limestones are the world’s most diverse coral assemblages of the Jurassic–Cretaceous transition. The intra-basinal ridge (ridges), traditionally called the Silesian Cordillera, which evolved through time from an emerged part of the Upper Silesian Massif to an accretionary prism, formed the most important provenance area for carbonate exotic clasts in the flysch of the Silesian Series. They are especially common in the Lower Cretaceous Hradiště Formation and the Upper Cretaceous–Paleocene Istebna Formation. The Baška-Inwałd 204 M. HOFFMANN Et Al. In the Polish Outer Carpathians, shallow-water carbonate sedimentation is recorded only by carbonate clasts, redeposited bioclasts, and very rare, small, unrooted, poorly exposed klippen. Clasts of limestones are exotic to the dominant siliciclastic, uppermost Jurassic–Miocene flysch deposits. They were derived from extrabasinal and intra-basinal source areas of the Carpathian rocks, which periodically emerged and were destroyed. Such rocks were described as “exotic” since the 19th century (“exotischen Graniten”, “exotische Blöcke”; Morlot, 1847; Hohenegger, 1861). In the general geological literature, the term “exotic clasts” is usually used (Flügel, 2010, p. 172), whereas in the Polish geological literature, the term “exotics” (Polish “egzotyki” including also carbonate exotics), is also commonly applied. On the basis of fossils, facies and microfacies, these clasts (pebbles, rarely blocks) are mostly described as Devonian–Carboniferous (Malik, 1978, 1979; Burtan et al., 1983; Tomaś et al., 2004) and Upper Jurassic–lowermost Cretaceous (the present paper and references therein), more rarely Middle Jurassic (Książkiewicz, 1935, 1956a; Barczyk, 1998; Olszewska and Wieczorek, 2001), Early Cretaceous (Oszczypko et al., 1992, 2006, 2020; Krobicki et al., 2005), Late Cretaceous (Książkiewicz, 1956a; Gasiński, 1998) and Palaeogene in age (Leszczyński, 1978; Rajchel and Myszkowska, 1998; Leszczyński et al., 2012; Minor-Wróblewska, 2017). At the beginning of these studies, the focus was on small, unrooted klippen, namely the Andrychów Klippen (called also Klippes) near Wadowice (Zeuschner, 1849; Hohenegger, 1861; Uhlig, 1904; Książkiewicz, 1935, 1971b; Nowak, 1976; Gasiński, 1998; Olszewska and Wieczorek, 2001), and in Kruhel Wielki, near Przemyśl (Niedźwiedzki, 1876; Wójcik, 1907, 1913, 1914; Bukowy and Geroch, 1956; Morycowa, 1988; Olszewska et al., 2009), now poorly exposed. Subsequently, exotic pebbles, much more common and providing data on more facies, were studied more frequently. The first attempt to describe exotics, including crystalline rocks, was presented by Nowak (1927). Jurassic–Cretaceous carbonate exotics at Bachowice, containing facies unknown at other localities in the Polish Outer Carpathians, were described by Książkiewicz (1956a). The preliminary results of studies, which encompassed the entire spectrum of carbonate exotics from the western part of the Polish Outer Carpathians, were presented by Burtan et al. (1984). Malik (1978, 1979) described both Palaeozoic and Mesozoic carbonate clasts in the Hradiště Sandstone of the Silesian Unit, but other studies were mostly concerned with the Štramberk-type limestones from selected outcrops. The studies of these limestones, if concerned with exotics at many localities, were focused on their fossil content (e.g., Kołodziej, 2003a; Bucur et al., 2005; Ivanova and Kołodziej, 2010; Kowal-Kasprzyk, 2014, 2018) or presented only the preliminary results of facies studies (e.g., Hoffmann and Kołodziej, 2008; Hoffmann et al., 2008). Carbonate platforms, the existence of which was deciphered from detrital carbonate components, are called lost carbonate platforms (e.g., Belka et al., 1996; Flügel, 2010; Kukoč et al., 2012). Clasts and other shallowwater components are, metaphorically, witnesses to lost carbonate factories (the term is taken from Coletti et al., 2015). Analyses of the age and lithology of exotic clasts have been applied in the reconstruction of the provenance areas of the clasts and their palaeogeography and the development of the sedimentary sequences of the Polish Outer Carpathians (e.g., Książkiewicz, 1956b, 1962, 1965; Unrug, 1968; Oszczypko, 1975; Oszczypko et al., 1992, 2006; Hoffmann, 2001; Krobicki, 2004; Słomka et al., 2004; Malata et al., 2006; Poprawa and Malata, 2006; Poprawa et al., 2006a, b; Strzeboński et al., 2017; Kowal-Kasprzyk et al., 2020). Štramberk-type limestones are most common among the exotics. It is a field term that refers to limestones, mostly beige in colour, that are supposed to be the age and facies equivalents of the Tithonian–lower Berriasian Štramberk Limestone in Moravia (Czech Republic; Eliáš and Eliášová, 1984; Picha et al., 2006). The Štramberk Limestone and the Štramberk-type limestones of both countries were deposited on platforms, attached to the intrabasinal ridges and margins of the basin of the Outer Carpathians. These platforms are collectively termed the Štramberk Carbonate Platform. The terms “Štramberk Limestone” and “Štramberk-type limestones” have been widely used in the area of the former Austro-Hungarian Empire for the field description of shallow-water limestones of assumed Late Jurassic age, usually occurring within flysch deposits of the Outer Carpathians. Upper Jurassic–lowermost Cretaceous shallow-water limestones in Romania (commonly forming mountains or ridges, e.g., Pleş et al., 2013, 2016), in Bulgaria and Serbia (Tchoumatchenco et al., 2006), and Ukraine (Krajewski and Schlagintweit, 2018), and in Turkey (Masse et al., 2015) sometimes are referred to as the Štramberk-type limestones as well. In the Austrian-German literature similar limestones in the Alps are known as the Plassen Limestone (e.g., Steiger and Wurm, 1980; Schlagintweit et al., 2005). Biostratigraphic studies revealed that some carbonate clasts, accounting for several percent of the exotics and commonly Ridge and the Sub-Silesian Ridge were the source areas for clasts from the Silesian and Sub-Silesian units (e.g., in the Hradiště Formation), while the Northern (Marginal) Ridge was the source for clasts from the Skole Unit (e.g., in the Maastrichtian–Paleocene Ropianka Formation).
Źródło:
Annales Societatis Geologorum Poloniae; 2021, 91, 3; 203-251
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ancient and modern anastomosing rivers: insights from sedimentological and geomorphological case studies of the Triassic, Neogene and Holocene of Poland
Autorzy:
Kędzior, Artur
Widera, Marek
Zieliński, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2058684.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
fluvial environment
facies analysis
river type
tectonics
climate
Polska
Opis:
We review the three regional anastomosing fluvial systems, both ancient and modern. The dinosaur-bearing upper Triassic succession in Krasiejów (S Poland) is composed of siltstones and claystones that are divided into three facies associations. One of the fluvial associations is characterized by features typical of a low-energy anastomosing river system in a tropical semiarid climate, interpreted as the result of accumulation in deep, wide and low-sinuosity palaeochannels with pronounced vertical accretion. Deposition from suspension predominated in flows of very low stream power. The upper Neogene muddy succession in a tectonically active area (Kleczew Graben, central Poland) includes a great number of fluvial palaeochannels filled with sand and/or mud. These ribbon-shaped fluvial bodies are deep and wide, and represent channels showing very lim ited lateral migration. They were filled mostly under low-energy condi tions, and their mapped course shows an “anabranching” pattern in plan view. The palaeochannels are transitional from sand- to mud-dominated. The Holocene upper Narew River (NE Poland) represents a modern anastomosing fluvial system. The interconnected channels form an anabranching pattern. The channels are straight to slightly sinuous, relatively deep and wide. Interchannel, low-lying “islands” are covered by peat-forming plants. Despite the low stream power, in-channel deposition is dominated by sand transported as bedload. The channel banks are stabilised by vegetation, which effectively prevents their lateral migration.
Źródło:
Geological Quarterly; 2021, 65, 4; 111--138
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 33

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