Informacja

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

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "nappe" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 79
Tytuł:
Krążenie płynów w skałach okruchowych : studium przypadku piaskowców krośnieńskich z rejonu Bereżek (Bieszczady Wysokie)
Fluid circulation in clastic rocks : a case study of the Krosno sandstones from the Bereżki region (The High Bieszczady Mountains)
Autorzy:
Solecki, Marek L.
Waliczek, Marta M.
Powiązania:
https://bibliotekanauki.pl/articles/20242174.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
materia organiczna
refleksyjność witrynitu
kalcyt
płaszczowina Śląska
Karpaty Zewnętrzne
organic matter
vitrinite reflectance
calcite
Silesian Nappe
Outer Carpathians
Opis:
In this study, microscopic analysis was applied to investigate fluid flow in the Oligocene shale and sandstone samples from the Krosno Beds (Silesian Nappe, Outer Carpathians) in the Bere¿ki outcrop. Analysis of calcite generation in veins and reflectance of organic matter measurements were done. Three generations of calcite were observed, indicating three stages of fluid migration along the veins in sandstones. Moreover, oil droplets and solid bitumen migration were seen during microscopic analyses. Thermal maturity based on vitrinite reflectance measurements indicates mature organic matter to hydrocarbon generation.
Źródło:
Przegląd Geologiczny; 2023, 71, 4; 227-230
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Red algae grains from the Żurawnica Sandstone Member in the Sucha Beskidzka area (Magura Nappe, Polish Outer Carpathians) as the indicator of shallow water palaeoenvironment on the intrabasinal Tethyan ridge
Autorzy:
Koczur, Maria
Waśkowska, Anna
Bassi, Davide
Powiązania:
https://bibliotekanauki.pl/articles/24202109.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Tethys
paleoenvironment
Magura Nappe
Opis:
The Żurawnica Sandstone Member was deposited in the Paleocene on the northern slope of the Magura Basin in the western part of the Tethys. It is built of clastic material transported by gravitational currents from shallow parts of the Foremagura Ridge (Cieszkowski et al., 1999), which was an uplifted intrabasinal structure. At the top of the Żurawnica Hill (Beskid Makowski, location known as Kozie Skały) a well-exposed section crops out. It is a part of flysch succession of the Magura Nappe (Cieszkowski et al., 2006). In the lower part of the section thick-bedded sandstone with red algal grains occurs. Algal remnants were redeposited from the photic zone of the carbonate platform, which developed on the Foremagura Ridge. Their structure-taxonomic differentiation allows to reconstruct algal palaeoenvironment. The red algae are represented by Sporolithaceae, Melobesioideae, and Mastophoroideae genera. They correspond to three algal facies: debris, algal pavement facies, and Melobesioideae rhodolith pavement facies. Sand-sized red algal grains are the most numerous. They are fragmented and well rounded crustaceous algal thalli, typically with no traces of bioerosion. They represent algal debris facies, which was developed in high energy environment (Nebelsick et al., 2005). Red algae grains could be fragmented and rounded during turbidity transport, but considering the different degree of abrasion, especially in gravel fraction, it should be assumed that the rounding took place before the turbidity transportation. Two types of gravel grains are present: not rounded algal limestone clasts and rhodoliths. The non-rhodolith grains are built of encrusting (layered and foliose), warty, and lumpy algal crusts. Rhodoliths can be divided into two types: irregular and regular ones. Irregular rhodoliths are up to 3 cm in diameter. They contain large nuclei constituting grain skeleton. Both non-rhodolith grains and irregular rhodolits are polygeneric and contain numerous benthic organisms (bryozoans, encrusting foraminifera, and bivalves) between algal lamella, as well as constructional voids. They are bioeroded. They are elements of algal pavement facies for which the occurrence of the algal buildups with irregular rhodoliths in areas, where the energy of the environment is a bit higher is typical (Nebelsick et al., 2005, 2013; Bassi et al., 2017). The regular rhodoliths, up to 0.5 cm in size, contain small carboniferous nuclei. Typically, they are unigeneric (Sporolithaceae, Melobesioideae) and not contain other benthic organisms. Lack of constructional voids was observed in thick algal encrustation. Only encrusting growth form was observed. Regular rhodoliths are typically developed as a main part of Melobesioideae rhodoliths pavement facies, which is rather “deep” water facies of high energy environments (Adey, 1986; Bassi et al., 2017).
Źródło:
Geotourism / Geoturystyka; 2023, 1-2 (72-73); 35--35
1731-0830
Pojawia się w:
Geotourism / Geoturystyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Oligocene olistostrome with exotic clasts in the Silesian Nappe (Outer Ukrainian Carpathians, Uzh River Basin)
Autorzy:
Hnylko, Oleh
Hnylko, Svitlana
Heneralova, Larysa
Tsar, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2058691.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Ukrainian Carpathians
Silesian Nappe
Oligocene
olistostrome
foraminifers
biostratigraphy
palaeogeography
Opis:
In the Ukrainian part of the Silesian Nappe (Outer Carpathians, Uzh River Basin) the exotic clast-bearing Uzhok Olistostrome (up to 60 m thick) occurs within the Oligocene Krosno Formation and underlies the Pikui Sandstone (Otryt Sandstone in Poland). The Uzhok Olistostrome consists of debris/grain/mud flow deposits with clasts of schist and bioclastic limestone. These deposits contain redeposited pelagic sediments with planktonic foraminifers including Parogloborotalia pseudocontinuosa (Jenkins), Ciperoella ciperoensis (Bolli), Globoturborotalita woodi (Jenkins), Chiloguembelina adriatica Premec Fucek, Hernitz Kucenjak and Huber. The age of the Uzhok Olistostrome based on planktonic foraminifers correlates with the middle Oligocene within the middle O2–O5 zones. The source area for the Uzhok Olistostrome and Pikui Sandstone was a mid-Oligocene intrabasinal palaeouplift (the Pikui Ridge) interpreted as the fore-bulge located in the Silesian Sub-basin ahead the emerging Outer Carpathian accretionary prism (including the Dukla Nappe and other West Carpathian inner flysch nappes).
Źródło:
Geological Quarterly; 2021, 65, 4; 3--20
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detrital zircon U-Pb geochronology of a metasomatic calc-silicate in the Tsäkkok Lens, Scandinavian Caledonides
Autorzy:
Barnes, Cristopher J.
Majka, Jarosław
Bukała, Michał
Nääs, Erika
Rousku, Sabine
Powiązania:
https://bibliotekanauki.pl/articles/1841761.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Scandinavian Caledonides
Seve Nappe Complex
Tsäkkok Lens
metasomatism
detrital zircon U-Pb geochronology
Opis:
The Tsäkkok Lens of the Seve Nappe Complex in the Scandinavian Caledonides comprises eclogite bodies hosted within metasedimentary rocks. These rocks are thought to be derived from the outermost margin of Baltica along the periphery of the Iapetus Ocean, but detrital records from the sedimentary rocks are lacking. Many metasedimentary outcrops within the lens expose both well-foliated metapelitic rocks and massive calc-silicates. The contacts between these two lithologies are irregular and are observed to trend at all angles to the high-pressure foliation in the metapelites. Where folding is present in the metapelites, the calc-silicate rocks are also locally folded. These relationships suggest metasomatism of the metapelites during the Caledonian orogenesis. Zircon U-Pb geochronology was conducted on sixty-one zircon grains from a calc-silicate sample to investigate if they recorded the metasomatic event and to assess the detrital zircon populations. Zircon grains predominantly show oscillatory zoning, sometimes with thin, homogeneous rims that have embayed contacts with the oscillatory-zoned cores. The zircon cores yielded prominent early Stenian, Calymmian, and Statherian populations with a subordinate number of Tonian grains. The zircon rims exhibit dissolution-reprecipitation of the cores or new growth and provide ages that span similar time frames, indicating overprinting of successive tectonic events. Altogether, the zircon record of the calc-silicate suggests that the Tsäkkok Lens may be correlated to Neoproterozoic basins that are preserved in allochthonous positions within the northern extents of the Caledonian Orogen.
Źródło:
Geology, Geophysics and Environment; 2021, 47, 1; 21-31
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Materia organiczna rozproszona w ciemnych turbidytach górnego eocenu płaszczowiny śląskiej (Karpaty zewnętrzne, Polska)
Organic matter dispersed in the Upper Eocene dark turbidities of the Silesian Nappe (Outer Carpathians, Poland)
Autorzy:
Waliczek, Marta
Waśkowska, Anna
Machowski, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/2076201.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
materia organiczna
refleksyjność witrynitu
ciemne łupki
płaszczowina śląska
Karpaty Zewnętrzne
organic matter
vitrinite reflectance
dark shales
Silesian Nappe
Outer Carpathians
Opis:
In this study, weapply microscopic analysis to evaluate thematurity of organic matter and characterise the macerals dispersed in the Upper Eocene shale samples from the Hieroglyphic Formation (Silesian Nappe, Outer Carpathians). The mean vitrinite reflectance values indicate the presence of organic matter immature to hydrocarbon generation (Ro≈0.43%).The main organic component dispersed in analysed samples is vitrinite, characteristic of kerogen type III.
Źródło:
Przegląd Geologiczny; 2021, 69, 7; 458--462
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foraminiferal and calcareous nannoplankton bioevents and changes at the Late Cretaceous : earliest Paleogene transition in the northern margin of Tethys (Hyżne section, Polish Carpathians)
Autorzy:
Machaniec, Elżbieta Katarzyna
Kowalczewska, Oliwia
Jugowiec, Małgorzata
Gasiński, M. Adam
Uchman, Alfred
Powiązania:
https://bibliotekanauki.pl/articles/2060246.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
foraminifera
nannoplankton
bio-events
K-Pg boundary
Skole Nappe
Outer Carpathians
Opis:
Foraminifera and calcareous nannoplankton from the Cretaceous-Paleogene (K-Pg) transition in the Hyżne section (Outer Carpathians, south-eastern Poland) show a relatively complete biostratigraphic record. Despite the absence of the Pα Zone in turbiditic deposits of the Polish Carpathians, the planktonic foraminiferal zones of the Late Cretaceous-Early Paleogene interval are well defined, including (1) the late Maastrichtian Abathomphalus mayaroensis Zone and its equivalents, (2) the earliest Danian Guembelitria cretacea second bloom Zone (P0 Zone), and (3) the top of the early Danian Parasubbotina cf. pseudobulloides (P1a) Zone. The foraminiferal events recorded in the studied section at the K-Pg transition are stratigraphically important. They include: (1) the interval with A. mayaroensis occurrence, (2) the interval with gradual disappearance of planktonic foraminifera from the most complex K-strategy forms, through the less specialized species to the large Heterohelicidae turnovers, and (3) the G. cretacea first and second blooms. Furthermore, the bloom of the opportunistic, benthic Bolivinita sp., the size reduction event, and the dissolution of the tests of the planktonic foraminifera are recorded. The K-Pg interval bioevents can be useful for better stratigraphic resolution of the flysch deposits of the Outer Carpathians. The nannoplankton event is represented by the appearance of Cruciplacolithus primus, which marks the onset of the return to more stable environmental conditions after the perturbations at the K-Pg boundary. The K-Pg boundary occurs within dark grey marly mudstones, above the upper boundary of the G. cretacea first bloom, and above the highest occurrence of the agglutinated foraminifera Goesella rugosa, at the top of the nannofossil CC 26 Zone, and below the deep-water agglutinated foraminifera (DWAF) dominance. The foraminiferal assemblages derive from different bathymetric zones corresponding to (1) the upper bathyal zone in the late Campanian (nannoplankton CC 22 Zone) and early late Maastrichtian (A. mayaroensis Zone), (2) the shelf margin in the latest late Maastrichtian (CC 26 nannoplankton Zone, G. cretacea first bloom), (3) the shelf margin in the earliest Danian (G. cretacea second bloom, Np1/2 Zone), and (4) the middle-lower bathyal depth, below a local foraminiferal lysocline and above CCD, in the latest early Danian (P. pseudobulloides Zone). As the foraminifera could have been redeposited by turbiditic currents, they do not necessarily show real bathymetric changes in the area of deposition. Such changes have not been observed in sedimentary features of the studied deposits. Foraminiferal and nannoplankton assemblages are typical of the “transitional zone” between the Tethyan and Boreal domains.
Źródło:
Geological Quarterly; 2020, 64, 3; 567--588
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maastrichtian climate changes : the calcareous nannofossil record from flysch deposits of the Outer Carpathians
Autorzy:
Wierzbicki, Adam
Kędzierski, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1836252.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Late Maastrichtian warming
Deccan traps
K-Pg boundary
biostratigraphy
Skole Nappe
Opis:
The Outer Carpathians are known for a few sections, where transitions from the Upper Cretaceous to the Palaeogene, including the K-Pg boundary interval, were described. One of them, the Bąkowiec section in the Skole Nappe, was examined with reference to the record of biostratigraphy and palaeoenvironmental changes, mainly based on the analysis of calcareous nannofossil assemblages. This study shows no evidence for the K-Pg boundary; however, the presence of the nannofossil species Micula prinsii, marking the topmost Maastrichtian UC20dTP Zone, was noted. The appearance of this low-latitude taxon and relevant changes in the composition of nannofossil assemblages indicate an influx of Tethyan warm water into the northern Carpathian basins during the latest Maastrichtian, shortly before the K-Pg boundary event. Therefore, the authors infer that the upper part of the Bąkowiec section recorded the latest Maastrichtian warming of climate, probably triggered by Deccan volcanic activity.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 4; 447-462
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Late Carboniferous olistostrome at the front of the Southern Tian Shan nappes (Kadamzhai and Khaidarkan deposits, Kyrgyzstan)
Autorzy:
Hnylko, Oleh
Tsukornyk, Ihor
Heneralova, Larysa
Dvorzhak, Oleksiy
Powiązania:
https://bibliotekanauki.pl/articles/2058660.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
olistostrome
nappe
Southern Tian Shan
Kadamzhai
Khaidarkan
Kyrgyzstan
Opis:
A Late Carboniferous (Early Moscovian) olistostrome developed in the Kadamzhai and Khaidarkan gold-antimony-mercury deposits on the Alay Ridge northern slope (Kyrgyzstan), at the front of the Late Paleozoic Southern Tian Shan nappes, is characterized. It comprises a sub-nappe olistostrome in a collisional tectonic setting. The olistostrome contains olistoliths and olistoplaques containing parts of the mid-Paleozoic sedimentary successions belonging to the parautochthon and lower nappes of the northern Bukantau-Kokshaal branch of the Southern Tian Shan nappe belt. The olistostrome accumulated ahead the advancing nappes in the foredeep basin that was filled with turbidities and debris-flow deposits (Tolubai Formathion). The parautochthon was partly dismembered into thrust limestone sheets which disintegrated and slid into unconsolidated sediments of the foredeep basin, forming large limestone olistoliths and olistoplaques. Olistoliths containing shales and bedded cherts were slid from the lower nappes. Tectonic breccias up to melange scale are present in some olistoliths, suggesting tectonic disintegration within the nappe pile and the subsequent sliding of the tectonized blocks into the olistostrome basin. Ore-bearing silicified rocks (so-called “jasperoids”) with antimony-mercury and gold mineralization are located predominantly along the contacts of the limestone olistoliths/olistoplaques with a terrigenous matrix.
Źródło:
Geological Quarterly; 2019, 63, 2; 407--423
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rocky forms in the Yamna Sandstone (Skyba Nappe, Outer Carpathians, Ukraine)
Formy skałkowe z piaskowca jamneńskiego (płaszczowina skibowa, Karpaty Zewnętrzne, Ukraina)
Autorzy:
Waśkowska, Anna
Hnylko, Svitlana
Bakayeva, Sofia
Golonka, Jan
Słomka, Tadeusz
Heneralova, Larysa
Powiązania:
https://bibliotekanauki.pl/articles/128400.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sandstone rocky forms
tors
Eastern Outer Carpathians
Yamna Sandstone
Skyba Nappe
thick-bedded sandstone complex
geotourism
piaskowcowe formy skałkowe
wschodnie Karpaty Zewnętrzne
piaskowiec jamneński
płaszczowina skibowa (skolska)
kompleks piaskowców gruboławicowych
geoturystyka
Opis:
Interesting objects – the rocky forms and waterfall thresholds, built of Yamna Sandstone occur in the vicinity of Skole town. Beside the esthetic positive aspects related the morphological variety of the rocky forms and occurrence of the diversified weathering structures, the objects have a substantial cognitive value encompassing the lithology and sedimentological processes of the thick-bedded turbidites. The sandstone rocky forms usually occur in the groups distributed on slopes and forming so-called rocky towns. Their number and distribution allow observation of the changing structural and textural features both lateral and vertical within the 100-m thick composed profiles. The excellent degree of rocks outcropping, variety of structural and textural features and spectrum of possible observations indicates the high geotouristic potential of the investigated objects.
W okolicy miasta Skole, w obrębie wychodni piaskowca jamneńskiego występują interesujące obiekty geoturystyczne, do których należą piaskowcowe formy skałkowe i progi wodospadowe. Oprócz wysokich walorów estetycznych, związanych z urozmaiceniem morfologicznym terenu i różnorodnością poszczególnych skałek oraz struktur wietrzeniowych, obiekty te mają istotną wartość poznawczą w zakresie wykształcenia litologicznego oraz procesów sedymentacyjnych gruboławicowych turbidytów. Skałki piaskowcowe zwykle występują w grupach rozmieszczonych na stokach, tworząc miasta skalne. Taka liczebność oraz położenie daje możliwości obserwacji zmienności cech tekstualnych i strukturalnych, zarówno lateralnie, jak i wertykalnie, w obrębie ponad stumetrowych złożonych profili. Znakomity stopień odsłonięcia oraz różnorodność form strukturalnych i tekstualnych oraz spektrum możliwych obserwacji wskazuje na wysoki potencjał geoturystyczny.
Źródło:
Geotourism / Geoturystyka; 2019, 1-2 (56-57); 43-60
1731-0830
Pojawia się w:
Geotourism / Geoturystyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie składu fizykochemicznego wód typu Zuber
Variability in the physicochemical composition of Zuber water
Autorzy:
Mardaus-Konicka, Edyta
Powiązania:
https://bibliotekanauki.pl/articles/2061536.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wody lecznicze Zuber
skład chemiczny
płaszczowina magurska
Karpaty zewnętrzne
therapeutic water Zuber type
chemical composition
Magura Nappe
Outher Carpathians
Opis:
Zubery to unikatowe wody mineralne w skali światowej. Ze względu na zawartość składników mineralnych są wykorzystywane w balneoterapii. Na podstawie badań prowadzonych w ramach Ruchu Uzdrowiskowego Zakładu Górniczego w Krynicy-Zdroju i wyników analiz fizykochemicznych określono zróżnicowanie składu fizykochemicznego szczawy typu Zuber z poszczególnych odwiertów. Wyróżniono dwa typy Zuberów HCO3–Na (Zuber I, Zuber III i Zuber IV) oraz HCO3–Na–Mg (Zuber II). Głównymi składnikami, które mają wpływ na typ chemiczny szczaw jest anion HCO3 –, natomiast z kationów jon Na2+ i tylko w szczawie udostępnionej odwiertem Zuber II również jon Mg2+. Zawartość HCO3 – waha się od 10841 do 19969 g/dm3, Na2+ od 3369 do 9650 g/dm3, a Mg2+ od 145 do 802 mg/dm3. Mineralizacja szczaw typu Zuber waha się od 16 575–29 260 mg/dm3, a zawartość CO2 od 880 do 2984 mg/dm3.
Zuber is a unique water type across the world due to its mineralization and the content of individual components. This carbonated water is used in balneotherapy. On the basis of both research carried out as part of the spa activity of the Mining Plant in Krynica-Zdrój and the results of physicochemical analysis, the physiochemical composition of Zuber carbonated waters was determined in some wells. Two types of Zuber have been distinguished: HCO3–Na (Zuber I, Zuber III and Zuber IV) and HCO3–Na–Mg (Zuber II). The main components affecting the chemical type of the waters are the HCO3 – anion and the Na2+ cation, as well as the Mg2+ ion that is available only in the Zuber II carbonated water. The HCO3 – content varies from 10.841 to 19.969 mg/dm3, Na2+ from 3.369 to 9.650 mg/dm3, and Mg2+ from 145 to 802 g/dm3. The mineralization of the Zuber carbonated waters varies from 16.575–29.260 g/dm3, and the CO2 content is between 880 and 2.984 mg/dm3.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2019, Hydrogeologia z. 16; 143--151
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Late Cretaceous foraminiferids from sections in the Zabratówka area (Skole Nappe, Outer Carpathians)
Autorzy:
Kowalczewska, O.
Gasiński, A.
Powiązania:
https://bibliotekanauki.pl/articles/191830.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Foraminiferids
palaeobathymetry
Late Cretaceous
Maastrichtian
Skole Nappe
Ropianka Formation
Outer Carpathians
Opis:
Well preserved Late Cretaceous–Palaeogene planktonic and benthic foraminiferal assemblages were studied in the Zabratówka section of the Ropianka Formation in the Skole Nappe. The Racemiguembelina fructicosa and Abathomphalus mayaroensis standard foraminiferal biozones were distinguished. The K-T boundary was recognized within the interval between samples ZB10B–ZB9A, mainly composed of marly mudstones, interlayered with thin-bedded sandstones, and is characterized by the disappearance of planktonic taxa and an abundance of agglutinated species. Foraminiferal assemblages, collected from the turbiditic flysch-type sediments, indicate a primary depositional environment on the outer shelf to the upper part of the continental slope, with shallowing during the Maastrichtian in the part of the Skole Basin studied. The foraminiferids correspond to the assemblages of a palaeobiogeographical “transition” zone, located between the Boreal and Tethyan domains.
Źródło:
Annales Societatis Geologorum Poloniae; 2018, 88, 1; 71-85
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential source rocks in the Ropianka Formation of the Magura Nappe (Outer Carpathians, Poland) – geochemical and foraminiferal case study
Autorzy:
Waśkowska, A.
Golonka, J.
Machowski, G.
Pstrucha, E.
Powiązania:
https://bibliotekanauki.pl/articles/184687.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
organic-rich deposits
geochemistry
foraminifera
Magura Nappe
shale-gas
Opis:
To optimize exploration for new hydrocarbon accumulations in the Polish Outer Carpathians, it is necessary to concentrate attention on identification of hydrocarbon accumulations of the “shale-gas” type. Results of recently completed analysis suggested new such possible targets in the Magura Basin, preserved in the Outer Carpathian Magura Nappe. Analysis of the preliminary results of paleoenvironmental and geochemical studies of these shales is the subject of this paper. Micropaleontological and geochemical study was conducted on the 300 m thick Świątkowa Member, the uppermost part of the Ropianka Formation located in the external, northernmost Siary Zone. This member is composed of thin- and medium-bedded sandstones interbedded by green, brown, black and dark-gray shales. Poor and changeable oxygenation is reflected in the composition of foraminiferal assemblages. A negative correlation between the TOC content and numbers and diversity of foraminifera is observed. The paleogeographic position and paleoenvironment assessment indicates that the Siary Zone fulfills certain conditions for organic productivity and preservation during the deposition of the Ropianka Formation.
Źródło:
Geology, Geophysics and Environment; 2018, 44, 1; 49-68
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rocky Sandstone Landforms in Istebna, Silesian Beskid (Outer Carpathians, Poland)
Piaskowcowe formy skałkowe w Istebnej (Beskid Śląski, Karpaty Zewnętrzne)
Autorzy:
Starzec, K.
Waśkowska, A.
Golonka, J.
Gawęda, A.
Szopa, K.
Powiązania:
https://bibliotekanauki.pl/articles/128392.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sandstone rocky landforms
Istebna Formation
Silesian Nappe
Silesian Beskid Mts.
thick-bedded gravity deposits
exotics
formy skałkowe
formacja z Istebnej
płaszczowina śląska
Beskid Śląski
gruboławicowe osady spływów grawitacyjnych
egzotyki
Opis:
The rocky sandstone landforms, which are interesting geotouristic objects, occur in the eastern part of Istebna village. The series of rock walls and pulpits is located on the southern slopes of the Karolówka Range. Fragments of the upper sandstones of Istebna Formation (Upper Cretaceous–Paleocene) crop out within these rocks. They represent the period of intensive supply of the clastic material into the Outer Carpathian Silesian Basin leading to the origin of thick-bedded , very coarse-grained sandstones and conglomerates. The occurrence of large, numerous crystalline rocks is a particular and unique feature of these outcrops. These magmatic and metamorphic rocks were derived from the basement of the Carpathian basins. This paper describes the detailed characteristics of these rocky landform objects.
We wschodniej części wsi Istebna występują piaskowcowe formy skałkowe, które są interesującymi obiektami geoturystycznymi. Są to serie ambon i ścian skalnych znajdujące się w kilku miejscach na południowych zboczach grzbietu Karolówki. W ich obrębie odsłonięte są fragmenty profilu górnych piaskowców formacji istebniańskiej jednostki śląskiej (górna kreda-paleocen), które reprezentują okres intensywnej dostawy materiału okruchowego do karpackiego basenu śląskiego, w efekcie czego powstały serie gruboławicowych i bardzo gruboławicowych piaskowców i zlepieńców. Szczególną cechą związaną z tymi wychodniami jest obecność licznych i dużych bloków skał krystalicznych: magmowych i metamorficznych, pochodzących z erozji podłoża, na którym rozwinęły się baseny karpackie. W niniejszym artykule dokonano charakterystyki jednostkowej tych obiektów skałkowych.
Źródło:
Geotourism / Geoturystyka; 2018, 1-2 (52-53); I-XIV
1731-0830
Pojawia się w:
Geotourism / Geoturystyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sharp-crested weir head losses investigation
Autorzy:
Korniichuk, V.
Khlapuk, M.
Bezusyak, O.
Yasinska, L.
Powiązania:
https://bibliotekanauki.pl/articles/104623.pdf
Data publikacji:
2018
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
flow energy
total head
head losses
nappe
jet flow
Opis:
The work is devoted to the rectangular sharp-crested weir calculation methods improvement. This can be realized by using mathematical model developed on energy and momentum conservation principles. In order to get energy conservation equation within sharp-crested weir we have to know weir head losses. This article presents theoretical and experimental investigations of the sharp-crested weir head losses. The height of the weir plate pw and weir head H are estimated as main operating factors that determine hydraulic weir outbound parameters: threshold depth h and the specific weir flow q. The flow moving over sharp-crested weir suffers sudden vertical contraction and transforms from the uniform flow to a jet. Mentioned above, causes sharp-crested weir head losses. To determine these losses, we propose to use Hind’s formula that describes similar contraction losses in the channel. Experimental investigations proved Hind’s formula application adequacy to evaluate these losses. Sharpcrested weir energy conservation equation that includes head losses is determined. Graphs set out in the article disclose the influence of the main operating factors and their ratio on the relative head losses.
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2018, 65, 1; 27-34
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural control on the initiation and development of the Biała Wisełka Landslide Complex (Silesian Beskid, Outer Carpathians, Southern Poland)
Autorzy:
Sikora, R.
Powiązania:
https://bibliotekanauki.pl/articles/184722.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
landslides
structural geology
lineaments analysis
LiDAR
Silesian Nappe
flysch Carpathians
Opis:
The numerous landslides which have developed in the mostly Cretaceous to Eocene turbiditic rocks of the Silesian Beskid are genetically and geometrically controlled by bedrock structural features, the Biała Wisełka Landslide Complex being no exception. Its location is in the headwater area of the Wisła River, on the slopes of Mt. Barania Góra (1220 m a.s.l.). The bedrock is represented by flysch strata of the Silesian Nappe (Outer Carpathian Fold-and-Thrust Belt), or, more specifically, the Upper Cretaceous turbiditic Upper Godula and Lower Istebna Beds of the Godula Thrust Sheet. The research work consisted in their mapping and structural analysis, facilitated by the use of a high-resolution digital elevation model based on LiDAR data. A comparative analysis enabled the determination of the relationships between landslides and the bedrock structure. The study results point to significant roles being played by the joint network, fault systems, the structural arrangement and the lithology of rock strata in the initiation and evolution of the studied landslide complex. An additional result of the methods applied methods was the identification and characterization of previously unknown fault zones in the study area.
Źródło:
Geology, Geophysics and Environment; 2018, 44, 1; 31-48
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 79

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