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    Wyświetlanie 1-10 z 10
    Tytuł:
    Conodonts and foraminifera from the "Raibl Beds" (Carnian) of the Karavanke Mountains, Slovenia : stratigraphical and palaeobiological implications
    Autorzy:
    Kolar-Jurkovšek, T.
    Jurkovšek, B.
    Gaździcki, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059708.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Slovenia
    Karavanke Mts.
    Carnian
    "Raibl Beds"
    biostratigraphy
    Opis:
    Themicropalaeontology of the "Raibl Beds" of the Košuta Nappe in the western KaravankeMts., Slovenia, is described. The presence of the conodont apparatus of Nicoraella? budaensis Kozur and Mock is demonstrated and together with other fossils it confirms a Carnian age. A comparison of the Nicoraella skeletal apparatus with two other Triassic apparatuses is made. The benthic foraminifera Aulotortus sinuosus, A. tumidus, Prorakusia salaji, Pilamminella kuthani and Endothyra kuepperi are recognized. Their stratigraphical range corresponds to the foraminiferal Pilamminella kuthani Interval-Zone. Altogether the palaeontological content of an 85 m-thick section in the upper part of the "Raibl Beds" below Mt. Jepca is described. The diverse fossil content of this section contributes to the intercalibration of Upper Triassic conodont, foraminifer and dasyclad zonations.
    Źródło:
    Geological Quarterly; 2005, 49, 4; 429-438
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Oligocene bivalve faunas from the Silesian Nappe, Polish Outer Carpathians: Evidence for the early history of the Paratethys
    Autorzy:
    Studencka, B.
    Popov, S.
    Bieńkowska-Wasiluk, M.
    Wasiluk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059857.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Bivalvia
    Menilite Beds
    Carpathian
    Rupelian
    Solenovian
    Paratethys
    Opis:
    The study is focused on the taxonomic inventory of an intriguing bivalve fauna from the Lower Oligocene Menilite Beds (Dynów Marls) within the Silesian Nappe, Polish Outer Carpathians. Sixteen bivalve species have been identified within the material collected in two small quarries in Jabłonica Polska near Krosno. Stratigraphic and geographic distributions of all recognized species are considered. This assemblage, the first of this kind in Poland and one of three recognized in the Outer Carpathians, shows clear affinities to coeval typical Solenovian faunas from Ukraine to Kazakhstan, with particular comparison made to bivalve faunas from the Menilite Formation (Subchert Member) within the Boryslav-Pokuttya Nappe, Ukrainian Outer Carpathians. Moreover, this study presents an overview of the main aspects and definitions of the date of the Paratethys origin. The main criterion used to define the time of the Paratethys birth is the distinct faunal turnover from the moderately diverse boreal or Tethyan bivalve faunas populating particular basins of the Northern Peri-Tethys in the earliest Oligocene to the uniform, highly endemic fauna inhabiting the newly formed semi-closed basin. This vast inland sea, named Paratethys, was populated by representatives of eight euryhaline bivalve families. They are characterized by extinct Paratethyan genera, such as Bessia Kojumdgieva et Sapungieva, Merklinicardium Popov, Korobkoviella Merklin, Urbnisia Goncharova, Ergenica G. Popov and Janschinella Merklin.
    Źródło:
    Geological Quarterly; 2016, 60, 2; 317--340
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Upper Cretaceous variegated shales in the Ropianka Formation of the Magura Nappe (Outer Carpathians) : age and lithostratigraphic position
    Autorzy:
    Waśkowska, Anna
    Szczęch, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/31342966.pdf
    Data publikacji:
    2023
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Campanian-Maastrichtian
    red beds
    lithostratigraphy
    biostratigraphy
    foraminifera
    Opis:
    The lithological characteristics and age analysis of the variegated Farony Shale are presented for the first time. The Farony Shale occurs in the Lubomierz and Rabka areas in the Bystrica Subunit. It is located within medium- and thin-bedded sandy dominated turbidites of the Campanian–Paleocene Ropianka Formation. It is comprised of red shales laminated or interlayered with strongly bioturbated green shales. Exposures of the Farony Shale are observed along a distance of ~25 km, in the form of a narrow belt. The age of the variegated deposits is estimated based on agglutinated foraminifera to late Campanian–earliest Maastrichtian. Their deposition was associated with low-energy conditions and a temporary limitation of the supply of sandy material to the inner part of the Magura Basin.
    Źródło:
    Geological Quarterly; 2023, 67, 2; art. no. 18
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetostratigraphy of the Oligocene Lower Krosno Beds from the Hulskie section (Outer Carpathians in Poland)
    Autorzy:
    Nawrocki, J.
    Malata, T.
    Rosowiecka, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060521.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Outer Western Carpathians
    Krosno Beds
    Jasło limestone
    magnetostratigraphy
    Opis:
    The Oligocene flysch sequence from the Hulskie section in the Polish Outer Carpathians was palaeomagnetically examined. The flysch complex containing the Jasło and Zagórze limestone horizons revealed palaeomagnetic properties sufficient for a magnetostratigraphy to be established. The correlation of the local to the global magnetic polarity scale indicates that the Jasło limestone was deposited very close to the Rupelian and Chattian boundary i.e. ca. 28.4 Ma. In the same way, the age of the Zagórze limestone was defined as close to ca. 27.6 Ma. The entire450 mof studied section was formed between ca. 29 and 26.5 Ma. It implies an average sedimentary ratio of about 18 cm per thousand years. The palaeomagnetic directions from the Hulskie section do not display the Fisher type distribution and do not fit the reversal test and therefore cannot be used for any regional tectonic reconstruction.
    Źródło:
    Geological Quarterly; 2016, 60, 4; 935--942
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palynofacies analysis, sedimentology and hydrocarbon potential of the Menilite Beds (Oligocene) in the Slovakian and Romanian Outer Carpathians
    Autorzy:
    Filipek, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2060248.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Menilite Beds
    palynofacies
    UV fluorescence
    thermal maturity
    Carpathians
    Opis:
    The sedimentary organic matter (SOM) assemblages and sedimentology of the Menilite Beds from the Dukla, Grybów and Vrancea units in the Slovakian and Romanian Outer Carpathians are described. Qualitative and quantitative analyses of the SOM help ascertain depositional conditions, while the thermal maturity of the organic matter studied is estimated utilizing the Spore Colour Index and UV light excitation techniques. The sedimentary organic particles were grouped into ten SOM categories: marine palynomorphs (dinoflagellate cysts), sporomorphs (saccate and non-saccate, pollen and spores), freshwater algae (Botryococcus sp., and other freshwater microplankton), phytoclasts (cuticles, translucent wood, opaque wood), resin and amorphous organic matter (AOM). All samples are dominated by AOM. The presence of Botryococcus sp., Pediastrum sp., Pterospermella sp. and Campenia sp., in some samples points to deposition under hyposaline conditions. It is interpreted that the freshwater influx induced water column stratification in the basin, leading to the development of dysoxic to anoxic bottom-water conditions that enhanced the preservation of AOM. Kerogen analysis in UV light and evaluation using the Spore Colour Index demonstrated different thermal maturation patterns from the Slovakian (post-mature) and Romanian (immature) sections. Integrated palynofacies analysis (notably, the presence of freshwater algae) and sedimentological observations (e.g., hummocky cross-stratification) lead to the conclusion that the deposition of the Menilite Beds in the Vrancea Unit (Romania) was relatively proximal to the shoreline, above storm wave base, whereas the Slovakian units (Dukla and Grybów) were deposited in a more distal setting.
    Źródło:
    Geological Quarterly; 2020, 64, 3; 589--610
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Eocene Hieroglyphic beds of Silesian Nappe in Western Polish Carpathians : development and foraminiferal record
    Autorzy:
    Waśkowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060290.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Hieroglyphic beds
    Silesian Nappe
    Outer Carpathians
    Eocene
    foraminifera
    lithostratigraphy
    Opis:
    The sedimentation of Hieroglyphic beds of the Silesian Nappe took place between the Lower and Middle Eocene and Upper Eocene within the Carpathian Silesian Basin. These beds are represented by thin-bedded flysch containing – at various stratigraphic positions – sandstone-less complexes with variegated shales and bentonite laminae developed in conditions of calm sedimentation with a limited supply of material from the land. The profiles of Hieroglyphic beds of the Silesian Nappe are diversely developed. Their variability and borderline sequences, transitory into overlying and underlying divisions, are presented. In the Ypressian, during the sedimentation of Hieroglyphic beds, foraminiferal associations with numerous small sized Trochammina developed, which formed in the Silesian Basin after the PETM crisis. Since the Lutetian, in slightly more favourable conditions, more differentiated associations have occurred, with Reticulophragmium amplectens (Grzybowski), Ammodiscus (Dolgenia) latus (Grzybowski), and Reticulophragmium gerochi Neagu et al., which preferred cool waters, being index fossils for stratigraphy. Hieroglyphic beds developed during an interval of the gradually cooling climate. The gradual decrease in temperature stimulated the transfer of species: in the Eocene associations of Hieroglyphic beds a number of thermophilous forms, whose optimum of development came in the Upper Cretaceous-Paleocene, disappeared whereas new species appeared which prefer cold waters commonly occurring in boreal basins. The deep restructuring of foraminiferal assemblages took place in the Priabonian, when massive numbers of calcareous benthonic and planktonic forms occurred.
    Źródło:
    Geological Quarterly; 2015, 59, 2; 271--299
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Apectodinium spp. acme as an evidence for the Paleocene-Eocene thermal maximum from the Polish Outer Carpathians
    Autorzy:
    Cybulska, Danuta
    Rubinkiewicz, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/2059691.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Apectodinium
    PETM
    dinoflagellate cysts
    Polish Outer Carpathians
    Hieroglyphic Beds
    Opis:
    Numerous Apectodinium taxa, with A. augustum, and the presence of Florentinia reichartii were found in the Bystre slice (Polish Outer Carpathians). Such abundance of Apectodinium is described for the first time in the Outer Carpathians. The occurrence of thermophilic Apectodinium taxa, with co-occurrence of Florentinia reichartii, are interpreted to be strongly related to the Paleocene-Eocene thermal maximum (PETM). The PETM is characterized by a notable global warming and changes in marine and terrestrial biota, such as a global dispersion of thermophilic dinoflagellates. We are also reporting a new, unrecorded section of the Hieroglyphic beds from the Jabłonka Stream.
    Źródło:
    Geological Quarterly; 2020, 64, 2; 241--251
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Frasnian-Famennian boundary in the Southern Urals
    Autorzy:
    Abramova, A. N.
    Artyushkova, O. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058836.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Southern Urals
    Late Devonian
    Kellwasser Event
    biostratigraphy
    Barma Beds
    brachiopods
    Opis:
    On the western slope of the Southern Urals, a continuous conodont zone sequence within different facies of the Frasnian-Famennian (F-F) boundary beds is documented. In all the sections the boundary between both stages runs within lithologically uniform successions and can be determined only by a sharp faunal change. In brachiopod facies, it is placed within brachiopod shell beds and relates to the base of the Barma Beds, i.e., the level marked by a simultaneous appearance of the index brachiopod species Pugnoides(?) markovskii and the zonal conodont species Palmatolepis triangularis. In goniatite facies, the F-F boundary can be traced by the disappearance of diverse Frasnian conodonts and goniatites of the genus Manticoceras, coupled with the first occurrence of the conodont Pa. triangularis; the sequence shows also the well-known icriodid blooms in the earliest Famennian. Finds of Famennian goniatites (representatives of the genus Cheiloceras) are confined to the crepida zones. In the sections of theWest-Zilair, where the F-F boundary passage consists of siliceous- terrigenous deposits, the boundary can be established only by a change in conodont assemblages. In all the sections under investigation the F-F boundary level shows a drastic faunal change that corresponds to the global Kellwasser Event.
    Źródło:
    Geological Quarterly; 2004, 48, 3; 217-323
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Early Miocene age of Stare Bystre Formation (Magura Nappe, Outer Carpathians, Poland) indicated by the calcareous nannoplankton
    Autorzy:
    Kaczmarek, A.
    Oszczypko-Clowes, M.
    Cieszkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059872.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Outer Carpathians
    Magura Nappe
    Stare Bystre beds
    nannofossils
    biostratigraphy
    reworking
    Opis:
    The area of investigation is situated close to the contact zone between the Pieniny Klippen Belt, Krynica Subunit of the Magura Nappe and the Neogene strata of the Orava–Nowy Targ Intramontane Basin (southern Poland). In the area studied, marine deposits of the Stare Bystre Formation outcrop at the surface where they emerge from beneath freshwater and terrestrial Neogene and Quaternary deposits. Nannofossil assemblages from all samples are strongly dominated by reworked species. The Early Miocene age (NN2) of the Stare Bystre Formation has been determined on the base of the first occurrence of Sphenolithus disbelemnos after Shackleton et al. (2000). During the Late Oligocene (NP25/NN1), the frontal part of Magura Nappe was thrust northwards on to the terminal Krosno flysch basin. The northwards thrusting of the Magura Nappe was accompanied by the formation of the piggy-back basin on the Magura Nappe, filled with the synrorogenic turbidites belonging to the Zawada, Kremná and Stare Bystre formations (NN2).
    Źródło:
    Geological Quarterly; 2016, 60, 2; 341--354
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neoproterozoic flood basalts of the upper beds of the Volhynian Series (East European Craton)
    Autorzy:
    Białowolska, A.
    Bakun-Czubarow, N.
    Fedoryshyn, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059908.pdf
    Data publikacji:
    2002
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Volhynian Series
    Ratno Beds
    flood basalts
    fractional crystallisation
    liquation
    palagonite
    copper mineralisation
    Opis:
    The effusive rocks of the Ratno Beds of the Volhynian Series known from the western slope of the Ukrainian Shield are represented by lower Vendian flood basalts whose normative composition is that of quartz tholeiites. These are plagioclase-pyroxene basalts displaying intergranular, intersertal, doleritic, ophitic and amygdaloidal textures; they range from aphanitic to medium-grained and contain about 7 vol. % of palagonite - an altered glass with a high iron and considerable magnesium content. The range in composition of plagioclases (andesine-bytownite) and clinopyroxenes (augite-ferropigeonite) suggests that the Ratno Beds basalts formed by fractional crystallisation of a parent magma. Residual magma underwent liquation, producing a separate acid glass (69-73 wt. % of SiO2) phase within a basic one considerably poorer in SiO2 but rich in iron and magnesium. The Ratno Beds basalts are relatively rich in silica, iron, titanium and vanadium as well as in REE and LREE in particular but poor in Ni, Co and Cr. Normative composition, geochemical characteristics and tectonic position suggest classification as continental quartz tholeiites. Hydrothermal solutions are responsible for rich native copper mineralisation in basalts of certain parts of Volhynia (Ivance and Policy). The Vendian volcanism of the Volhynian Series lithologically correlated with the Sławatycze Series of eastern Poland, can be related to continental rifting accompanying the breakup of Rodinia, with crustal fractures mainly running concordantly with the suture zone between Fennoscandia and Sarmatia, thus almost perpendicular to the Tornquist rift; other fracture trends may also have controlled Vendian volcanism.
    Źródło:
    Geological Quarterly; 2002, 46, 1; 37-58
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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