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Tytuł:
The benthic macrofauna from the Lower Maastrichtian chalk of Kronsmoor (northern Germany, Saturn quarry): taxonomic outline and palaeoecologic implications
Autorzy:
Engelke, J.
Esser, K. J. K.
Linnert, C.
Mutterlose, J.
Wilmsen, M.
Powiązania:
https://bibliotekanauki.pl/articles/139105.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Cretaceous
maastrichtian
Northern Germany
benthic macrofauna
taxonomy
palaeoecology
kreda
mastrycht
Niemcy Północne
makrofauna denna
taksonomia
paleoekologia
Opis:
The benthic macroinvertebrates of the Lower Maastrichtian chalk of Saturn quarry at Kronsmoor (northern Germany)been studied taxonomically based on more than 1,000 specimens. Two successive benthic macrofossil assemblages were recognised: the lower interval in the upper part of the Kronsmoor Formation (Belemnella obtusa Zone) is characterized by low abundances of macroinvertebrates while the upper interval in the uppermost Kronsmoor and lowermost Hemmoor formations (lower to middle Belemnella sumensis Zone) shows a high macroinvertebrate abundance (eight times more than in the B. obtusa Zone) and a conspicuous dominance of brachiopods. The palaeoecological analysis of these two assemblages indicates the presence of eight different guilds, of which epifaunal suspension feeders (fixo-sessile and libero-sessile guilds), comprising approximately half of the trophic nucleus of the lower interval, increased to a dominant 86% in the upper interval, including a considerable proportion of rhynchonelliform brachiopods. It is tempting to relate this shift from the lower to the upper interval to an increase in nutrient supply and/or a shallowing of the depositional environment but further data including geochemical proxies are needed to fully understand the macrofossil distribution patterns in the Lower Maastrichtian of Kronsmoor.
Źródło:
Acta Geologica Polonica; 2016, 66, 4; 671-694
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sukces pod Calais
Autorzy:
Holicki, Wojciech.
Powiązania:
Morze Statki i Okręty 2020, nr 11/12, s. 77-82
Data publikacji:
2020
Tematy:
II wojna światowa (1939-1945)
Wojna morska
Kutry torpedowe
Artykuł z czasopisma fachowego
Artykuł z czasopisma historycznego
Opis:
W nocy z 8 na 9 września 1941 roku brytyjskie ścigacze torpedowe zatopiły u brzegów Pas-de-Calais niemiecki parowiec „Trifels”. Autor szczegółowo opisuje wyposażenie i dokonania okrętów Royal Navy i Kriegsmarine. Pisze o przewadze okrętów niemieckich, które były większe i szybsze.
Fotografie.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
A marker band folgen stratigraphy for the Cenomanian Chalk of England and its extension to northen Germany and France
Autorzy:
Jeans, Christopher Vincent
Powiązania:
https://bibliotekanauki.pl/articles/27323962.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Cretaceous
cenomanian chalk
folge stratigraphy
marker bands
England
Northern Germany
Northwest France
Cenomanian–Turonian Anoxic Event
kreda
stratygrafia
Anglia
Niemcy Północne
północno-zachodnia Francja
cenoman
turon
Opis:
A novel stratigraphical scheme within the Folge Concept is described for the Cenomanian Chalk of England that is particularly suitable for investigating the regional changes in the lithofacies, diagenesis, geochemistry, and mineralogy of the sediments of the Chalk Sea leading up to the Cenomanian–Turonian Oceanic Anoxic Event. It is based on “isochronous” marker bands defined largely by calcitic macrofossil assemblages, and it avoids problems caused by the poor or non-preservation of ammonite assemblages and lateral changes in chalk lithofacies. Eight folgen are based on one, two, or more marker bands. Their sequences, lithologies and calcitic macrofossil assemblages are described from 33 exposures in the Northern Chalk Province of England. The folgen are named, in ascending order, the Belchford, Stenigot, Dalby, Bigby, Candlesby, Nettleton, Louth and Flixton, after villages in Lincolnshire and Yorkshire, England. The folgen are traced throughout the Transitional and Southern Chalk provinces of England. They are present in the Cenomanian chalk of northern Germany and northwest France. Regionally, an individual folge may display considerable vertical and lateral variation in general lithology and lithofacies whilst still maintaining their defining marker bands. The possibility of further refinement to the scheme is discussed.
Źródło:
Acta Geologica Polonica; 2023, 73, 2; 135--180
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is the Charlottenthal fan (marginal zone of the Pomeranian phase, NE Germany) an end moraine?
Autorzy:
Pisarska-Jamroży, Małgorzata
Börner, Andreas
Powiązania:
https://bibliotekanauki.pl/articles/94327.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
transitional fan
glaciofluvial sediment
gravel petrography
Weichselian glaciation
Pomeranian Phase
NE Germany
osady fluwioglacjalne
żwiry petrograficzne
Pomorze
północne Niemcy
Opis:
The maximum ice-sheet extent of a glaciation or glacial phase is in most cases indicated by the position of end moraines. In some cases, however, the maximum extent of the ice sheet is indicated by a fan which represents the transitional zone between the end moraine and the proximal outwash plain (sandur). Such a fan from the Pomeranian phase near Charlottenthal in NE Germany has been investigated for its lithofacies, and the depositional mechanisms of the two sedimentary environments (end moraine and outwash plain) are reconstructed. The Charlottenthal profile is not characteristic in a sedimentological sense of a typical marginal end moraine or a sandur. The deposits represent subaerial debris flows, sheet floods and channelized currents, which are typically processes for transitional fan. Gravel samples from the till complex show typical Weichselian till compositions. These till compositions indicate a general transport direction from North to South, which is consistent with the known movement of the ice sheet during the Pomeranian phase of the Weichselian.
Źródło:
Geologos; 2011, 17, 1; 17-28
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pod lupą bezpieki. Aparat represji wobec Niemców na Ziemiach Zachodnich i Północnych w okresie władzy komunistycznej, praca zbiorowa pod redakcją Michała Mathei, Dom Współpracy Polsko-Niemieckiej/Haus der Deutsch-Polnischen Zusammenarbeit, Gliwice-Opole 2020, s.206.
Under the microscope of Bezpieka. The apparatus of repression against the Germans in the Western and Northern Territories during the communist era, collective work edited by Michał Mathea, Dom Współpracy Polsko-Niemieckiej / Haus der Deutsch-Polnischen Zusammenarbeit, Gliwice-Opole 2020, p. 206.
Autorzy:
Syrwid, Robert
Powiązania:
https://bibliotekanauki.pl/articles/2135584.pdf
Data publikacji:
2022-08-18
Wydawca:
Instytut Północny im. Wojciecha Kętrzyńskiego w Olsztynie
Tematy:
Niemcy
aparat bezpieczeństwa
komunizm
ziemie zachodnie i północne Polski
1945-1989
Germany
security apparatus
Communism
Western and Northern areas of Poland
Opis:
Artykuł recenzyjny publikacji zbiorowej poświęconej działaniom aparatu bezpieczeństwa wobec ludności niemieckiej, pozostałej na ziemiach zachodnich i północnych państwa polskiego w latach 1945-1989. Praca zawiera pięć tekstów autorstwa czterech badaczy reprezentujących ośrodki akademickie w Słupsku i Wrocławiu oraz Oddziały Instytutu Pamięci Narodowej w Gdańsku i Wrocławiu. W artykułach przedstawiono i omówiono najważniejsze kierunki, metody i formy działania aparatu represji państwa komunistycznego podejmowane wobec Niemców - ale także częściowo i polskiej ludności rodzimej - na tzw. Ziemiach Odzyskanych w okresie Polski Ludowej i PRL. Poruszana problematyka obejmuje terytorialnie obszar Dolnego Śląska, Ziemi Lubuskiej, Pomorza Zachodniego, Pomorza Gdańskiego oraz Warmii i Mazur.
Review article of a collective publication on the activities of the security apparatus against the German population who remained in the western and northern areas of the Polish state in the years 1945-1989. The work contains five texts by four researchers representing the academic centres in Słupsk and Wroclaw as well as the branches of the Institute of National Remembrance in Gdansk and Wroclaw. The articles present and discuss the main directions, methods and forms of action of the apparatus of repression of the communist state, which were carried out against the Germans – but also partly against the Polish native population – in the so-called reclaimed territories during the period of Poland and the People’s Republic of Poland. Territorially, the issues addressed include Lower Silesia, Lebuser Land, West Pomerania, Gdansk Pomerania as well as Warmia and Masuria.
Źródło:
Komunikaty Mazursko-Warmińskie; 2022, 317, 2; 306-310
0023-3196
2719-8979
Pojawia się w:
Komunikaty Mazursko-Warmińskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-resolution Campanian-Maastrichtian carbon and oxygen stable isotopes of bulk-rock and skeletal components: palaeoceanographic and palaeoenviron-mental implications for the Boreal shelf sea
Autorzy:
Wilmsen, M.
Niebuhr, B.
Powiązania:
https://bibliotekanauki.pl/articles/139424.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Cretaceous
northern Germany
stable isotopes
low-magnesium calcite
palaeoceanography
kreda
Niemcy Północne
izotopy stabilne
kalcyt
paleoceanografia
Opis:
A high-resolution latest Early Campanian to Early Maastrichtian carbon and oxygen stable isotope record from the northern German Boreal shelf sea based on 537 analyses of co-occurring belemnites, brachiopods, inoceramids, oysters, and bulk rock samples is presented. All samples are precisely related to their stratigraphic, systematic and facies backgrounds and form an integrated, nearly 10-myr-long dataset with considerable palaeoenvironmental and palaeoceanographical implications. Petrographic studies indicate that low-magnesium calcitic coccoliths and calcispheres (i.e., planktic carbonate) predominate the bulk-rock data (marl-limestone rhythmites and chalks), thus representing a sea-surface water signal, and that only minor diagenetic alteration of the carbonate muds took place. Based on TL and CL microscopy, the investigated belemnites are extraordinarily well preserved, which may in part be explained by their early diagenetic surficial silicification (container effect), while the other macroinvertebrate groups are all less well preserved. The (plankton-dominated) δ13C values of the marl-limestone rhythmites and chalks (+1.1 to +2.5‰), recording a surface water signal, compare well with the δ13C data of inoceramids while δ13C brach.values (+1.5 to +3.0‰) are heavier than the bulk rock data. The large variation in the δ13Cbel. (-0.1 to +3.6‰) is attributed to isotopic disequilibrium of the biogenic carbonate formed by the belemnite animal. The bulk rock δ18O values show a remarkable low scatter, supporting petrographic observation of only minor diagenetic stabilisation/cementation, and can be approximated with northern German shelf sea-surface temperatures of ca. 20°C for the Late Campanian (ca. -2‰ δ18O), being slightly cooler during the Early Maastrichtian. The δ18O values of the belemnite rostra are even less variable and quite rich in heavier 18O (-0.7 to +0.6 with a mean of -0.1‰ δ18Obel.) in comparison to bulk rock and other skeletal components. Based on their excellent microstructural preservation and non-luminescence, we conclude that the belemnite rostra are diagenetically unaltered and have preserved the primary δ18O signal of ambient seawater (12±2°C). In the absence of any indication for migration from cooler water masses and evidence for authochtonous populations we assume that the belemnites of the genera Belemnitella and Belemnella lived as nektobenthos near the sea-floor and thus record the temperature of the bottom mixed layer of the seasonally weakly stratified north German shelf sea at water depths of 100 to 150 m; the temperature gradient was thus 12.5–18.75 m/1°C. A conspicuous latest Campanian cooling event is evident in both sea-surface and bottom-water temperatures. The δ18O values of nearly all investigated benthic fossils lie between the isotope values of pristine belemnites and bulk rock, and, therefore, should be used for palaeotemperature reconstructions only with great care.
Źródło:
Acta Geologica Polonica; 2017, 67, 1; 47-74
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł

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