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    Wyświetlanie 1-8 z 8
    Tytuł:
    Detrital garnets from the Upper Cretaceous-Palaeocene sandstones of the Polish part of the Magura Nappe and the Pieniny Klippen Belt: chemical constraints
    Detrytyczne granaty z górnokredowo-paleoceńskich piaskowców polskiej części płaszczowiny magurskiej i pienińskiego pasa skałkowego: wnioski uzyskane na podstawie ich składu chemicznego
    Autorzy:
    Salata, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/191641.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    heavy minerals
    garnets
    source rocks
    Magura Nappe
    Polish Carpathians
    Opis:
    Heavy mineral assemblages of the Upper Cretaceous-Palaeocene sandstones of the Polish part of the Magura Nappe and the Pieniny Klippen Belt (PKB) were studied. They consist mainly of stable minerals, such as zircon, tourmaline and rutile, but in many assemblages significant amounts of garnets are also present. To describe the provenance of the main heavy mineral groups their chemical composition was analysed. This article deals with the garnets group. Heavy minerals, including garnets, were derived to the Magura Basin from two opposite source areas: the north-west (northern) and the south-east. In the chemical composition of the analysed garnets, FeO and the almandine molecule are definitely dominant, but garnets with a raised MgO and pyrope molecule content were also found. Proportions among the main elements occurring in garnets indicate that they were formed under low- to medium grade metamorphic conditions in the southeastern source area, and medium- to high-grade conditions in the northern one.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2004, 74, No 3; 351-364
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calcareous nannofossil biostratigraphy and sedimentary environment of Valanginian–Hauterivian rhythmites (Silesian Nappe, Polish Carpathians)
    Autorzy:
    Kędzierski, M.
    Ochabska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/191763.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    calcareous nannofossils
    biostratigraphy
    Lower Cretaceous
    Silesian Nappe
    Polish Carpathians
    Tethyan-Boreal influences
    Opis:
    The results of semi-quantitative and qualitative studies of nannofossil assemblages in dark to light grey, rhythmically bedded, calcareous mudstones of the Upper Cieszyn Beds, Silesian Nappe of the Outer Carpathians are presented. The vertical variation in the carbonate content of these mudstones and changes in the composition of nannofossil assemblages, as well as the Shannon diversity index (SI), result from humid-arid climate changes, driving the trophic conditions of surface waters and nannoplankton biocalcification. These changes were control- led by the variable influences of both the Tethyan and Boreal provinces. The light grey mudstones were deposited during the dominance of warm waters from the Tethyan realm and some nannoconids, typical of the warm, stratified water of lower palaeolatitudes, occur here. The dark grey mudstones represent influences of the Boreal province, indicated by the appearance of Crucibiscutum sp. and a generally higher biodiversity demonstrated by SI. Climatic changes affected the stratification of surface water, expressed also by different linear fits for pairs of SI, Watznaueria barnesiae and Rhagodiscus asper. On the basis of the presence of Eiffellithus striatus, E. windii and signals of both Tethyan and Boreal influences. the section studied represents the uppermost Valanginian– lowermost Hauterivian boundary interval, i.e., the upper part of the BC5/BC6 nannofossil zones, related to the furcillata-radiatus ammonite zones.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2012, 82, 3; 225--237
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nowakocoenia cieszynica gen. et sp. nov. (Scleractinia) and its Barremian-Aptian age based on dinocysts (Polish Outer Carpathians)
    Koralowiec Nowakocoenia cieszynica gen. et sp. nov. i jego wiek w oparciu o dinocysty (barrem-apt, Polskie Karpaty Zewnętrzne)
    Autorzy:
    Kołodziej, B.
    Gedl, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/191264.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Scleractinian coral
    dinocysts
    Barremian-Aptian
    Polish Outer Carpathians
    Opis:
    A colonial scleractinian coral Nowakocoenia cieszynica gen. et sp. nov. (suborder Stylinina, Incertae familiae) from Rudzica near Bielsko-Biała (Outer Carpathians) is described. The new genus differs from other plocoidal and cerioidal stylininas mainly in irregularity in development of septa and the presence of wall developed in advance of septa. Exact locality and geological position of the coral specimen is unknown. Palynological analysis of calcareous sandstone forming a thin coat around the coral specimen allowed age determination. 65 species (including 21 in open nomenclature) of dinoflagellate cysts were recognized. Co-occurrence of Cepadinium ventriosum and Phoberocysta neocomica indicate the latest Barremian-Early Aptian age of this deposit. The coral was synchronically or penesynchronically redeposited from shallow water environment to flysch basin. Age and lithology of the sediment coating the specimen suggest the Grodziszcze Sandstones as coral-bearing deposits.
    W pracy opisano kolonijnego koralowca sześciopromiennego (Scleractinia) Nowakocoenia cieszynica gen. et sp. nov. (podrząd Stylinina, Incertae familiae) pochodzącego z Rudzicy koło Bielska-Białej (Karpaty zewnętrzne). Spośród innych plokoidalnych i cerioidalnych stylininów nowy rodzaj wyróżnia się przede wszystkim nieregularnym rozwojem septów oraz obecnością ściany wyprzedzającej w rozwoju septa. Dokładna lokalizacja oraz pozycja geologiczna okazu nie jest znana. Określenie wieku umożliwiła analiza palinologiczna wapnistego piaskowca tworzącego cienką powłokę wokół kolonii. Stwierdzono zespół 65 gatunków dinocyst (w tym 21 w nomenklaturze otwartej). Współwystępowanie gatunków Cepadinium ventriosum i Phoberocysta neocomica wskazuje na najpóźniejszy barrem-wczesny apt. Kolonia koralowca została synchronicznie lub penesynchronicznie redeponowana ze środowiska płytkowodnego do basenu fliszowego. Wiek i litologia piaskowca oblekającego kolonię koralowca sugerują, że osad ten reprezentuje piaskowce grodziskie.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2000, 70, 2; 181-192
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stress directions in the eastern part of the Silesian Nappe (Polish Outer Carpathians) reconstructed from the second-order folds
    Autorzy:
    Szczęsny, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/191523.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    stress analysis
    folds
    Silesian Nappe
    Polish Outer Carpathians
    Opis:
    A study of the second-order folds in the eastern part of the Silesian Nappe allows one to distinguish two groups of structures: longitudinal ones and those orientated obliquely to the strike of the first-order fold axes. Analysis of orientation of the second-order fold axes has made it possible to reconstruct the orientation of s1 stress axes and compression trajectories for each group of folds individually. The results of such a reconstruction imply that the two groups of folds must have been developing independently one from another. Longitudinal folds were formed together with the first-order folds, under the influence of clockwise rotating compression caused by the Early Miocene plate collision, whereas development of the oblique folds was influenced by counterclockwise rotating compression, what seems to be connected with the final push of the Carpathians in Sarmatian times.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2003, 73, No 2; 91-101
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new find of mammoth tusk in loess-like sediments of the Zakliczyn Basin (Outer Western Carpathians, Poland)
    Autorzy:
    Cieszkowski, M.
    Zuchiewicz, W.
    Alexandrowicz, W. P.
    Wojtal, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/191972.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    loesses
    mammoth remains
    malacofauna
    Upper Pleistocene
    Polish Outer Carpathians
    Opis:
    In June 2007, in a valley side of a small stream close to Janowice in the Western Outer Carpathians of Poland, a 1.8 m long mammoth tusk was found within loamy-debris solifluction sediments, ca. 1 m thick. These discordantly overlie a 4-m-high strath built up of steeply dipping sandstones of the Krosno beds of the Skole Nappe, being in turn covered by 7.5-m-hick loessial silts and loess-like slopewash sediments. The latter are overlain at the top by another solifluction cover, ca. 1.5 m thick. The mammoth tusk belonged to an adult animal, probably 30-60 years old. The succession of malacofaunistic assemblages within loess-like sediments indicates a cold, polar climate, and an environment resembling tundra developed upon moderately moist substratum during the last glacial stage. The lower part of malacological sequence enriched in mesophile species probably refers to the Vistulian (Weichselian) interpleniglacial period. The middle part, indicative of more dry habitats, can be associated with the younger Pleniglacial, whereas the top part should represent the terminal phase of the latter. Sediments bearing the mammoth tusk were probably deposited at the turn of the Vistulian older Pleniglacial and Interpleniglacial time.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2010, 80, No 1; 89-99
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bentonitized tuffites in the Lower Eocene deposits of the Subsilesian Unit (Western Outer Carpathians, Poland): lithology, stratigraphic position and mineral composition
    Zbentonityzowane tufity w dolnoeoceńskich osadach jednostki podśląskiej (polskie Zachodnie Karpaty Zewnętrzne): litologia, pozycja stratygraficzna i skład mineralny
    Autorzy:
    Cieszkowski, M.
    Środoń, J.
    Waśkowska-Oliwa, A.
    Leśniak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/191629.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Polish Outer Carpathians
    Subsilesian unit
    Early Eocene
    bentonitized tuffites
    foraminiferal assemblages
    Opis:
    New occurrences of bentonitized tuffites were described from numerous outcrops of the Lower Eocene flysch rocks of the Subsilesian Unit. These deposits crop out in the Żywiec tectonic window and in the tectonic windows of the Lanckorona - Żegocina Structural Zone. The bentonitized tuffites, composed of almost pure dioctahedral motmorillonite, form numerous thin layers and laminae, only occasionally exceeding 5 cm. The age of the tuffites is estimated as the Early Eocene (Glomospira div. sp. and Saccamminoides carpathicus zones) on the basis of foraminiferal assemblages. They occur in the upper part of green shales and in the lower part of the Lipowa beds that consist mainly of muddy turbidites represented by green or green-brownish shales with rare intercalations of sandstones. The sedimentary sequences with the tuffite intercalations form a lithostratigraphic level in the Subsilesian Unit called in the present paper "the Glichów Tuffite Horizon". This tuffite horizon could probably be correlated with deposits of similar age containing tuffites which are known from the Magura, Silesian and Skole nappes.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2006, 76, No 2; 197-214
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geological control on the Osława River meander at Duszatyn, Western Bieszczady Mountains, Polish Outer Carpathians
    Autorzy:
    Margielewski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/191585.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    neotectonics
    structural control
    Quaternary alluvium
    Osława River
    Western Bieszczady Mountains
    Polish Outer Carpathians
    Opis:
    At Duszatyn village (Western Bieszczady Mts.), the Osława River forms an unique meander loop which is not typical for the mountainous area. Detailed analysis has shown that this landform was created due to the evolution of two left-hand tributaries of the Osława River during the formation of its regressive water-gap. These processes were determined by mass movements which have strongly stimulated the fluvial system. The origin of the Osława River meander was largely controlled by lithological differences in rock resistance, orientation of the joint pattern, as well as the presence of bordering oblique and thrust faults which have had a bearing on the diversified neotectonic uplift of the area.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2004, 74, No 3; 325-338
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Foraminiferal stratigraphy of Palaeogene deep-water red facies in the Gorce Mountains (Magura Nappe, Polish Outer Carpathians)
    Autorzy:
    Bąk, K.
    Bąk, M.
    Cieśla, M.
    Paul, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/191980.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    agglutinated Foraminifera
    red claystones and mudstones
    Palaeocene
    Eocene
    Magura Nappe
    Polish Outer Carpathians
    Gorce Mountains
    Opis:
    The deposition of red and variegated mudstones and claystones characterized the ancient Tethys Ocean during Cretaceous and Palaeogene times, including in its north-western part, the Alpine–Carpathian deep-water basins. Palaeogene variegated sediments, containing red mudstone and claystone layers, crop out in the Gorce Mountains (Rosocha creek, near Lubomierz) in the Magura Nappe (Bystrica Subunit) of the Polish Outer Carpathians. These sediments occur as layers 1–10 cm thick and as packages of layers 2–3 m thick that are associated with very thin-bedded turbidites. The entire succession is tectonically disturbed and parts of it belong to the Ropianka, Łabowa Shale and Beloveža Formations. The sediments studied contain 27 genera and 59 species that belong to deep-water agglutinated foraminiferal (DWAF) assemblages. Tubular taxa, which are frequent in various Mesozoic–Cenozoic flysch sediments are relatively rare in the section studied. The assemblages are moderately diverse (3–20 taxa per sample). Excluding tubular forms, the most common taxa belong to Trochamminoides – Paratrochamminoides spp., Saccammina placenta, glomospirids, Recurvoides – Recurvoidella spp. and karrerulinids. The oldest part of the red sediments, referable to the Ropianka Formation, represents the upper part of the Rzehakina fissistomata Zone (probably the Upper Palaeocene). The youngest red sediments, forming thin intercalations in the Beloveža Formation, represent the acme of Reticulophragmium amplectens (middle Lutetian). Owing to tectonic disturbances, most of the Lower Eocene part of the variegated facies of the Łabowa Shale Formation is not preserved in the section studied. The upper part of it, a package 2 m thick, represents the lower part of the Reticulophragmium amplectens Zone. The small thickness (10–15 m) of the Łabowa Shale Formation in the section studied is similar to other sections in the southern part of the Bystrica Subunit. It is probably of a sedimentary nature, reflecting a decreasing number of mud-rich, gravitational flows in the southern part of the Magura Basin during the Early Eocene. Nevertheless, the strong tectonic disturbances that took place in this area during the Oligocene–Miocene folding and overthrusting influenced the reduction in thickness of these sediments.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2013, 83, 3; 201-212
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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