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    Wyświetlanie 1-7 z 7
    Tytuł:
    The Variscan foreland in Poland revisited : new data and new concepts
    Autorzy:
    Narkiewicz, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2059681.pdf
    Data publikacji:
    2020
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Variscides
    foreland basins
    lithospheric memory
    far-field stress
    basin inversion
    Opis:
    An earlier concept of the Variscan foreland in Poland (Narkiewicz, 2007) is reconsidered in the light of new stratigraphic, tectonic and geophysical evidence, providing new data on Devonian sedimentation, Carboniferous magmatism and the deep crustal structure of SE Poland. Regional comparisons with the tectonic evolution of Central Europe and the Black Sea region show that the subsidence pattern in the foreland was controlled by alternating phases of accelerated convergence and tectonic standstill along the southern margin of Euramerica. In particular, the Bretonian (Devonian/Carboniferous) compressional deformation resulted from intensified orogenic convergence in the West-Central European Variscides leading to closure of the Saxo-Thuringian Basin and East-Sudetic back-arc basin. Another turning point in the regional tectonosedimentary development around the Mississippian-Pennsylvanian boundary was probably related to the termination of terrane collision in the Black Sea region. Late Pennsylvanian basin inversion was associated with a roughly N-S tectonic shortening. This was partly due to displacement along pre-existing basement discontinuities comprising reactivated Caledonian sutures that also pre-determined the Devonian-Carboniferous basin boundaries. Consequently, deeply-rooted tectonic zones, including the Kraków-Lubliniec and Holy Cross faults and the Teisseyre-Tornquist Zone, focussed maximum compressional and transpressional deformation and associated uplift. Such a concept of terminal Variscan tectonism, termed here the “decoupled model”, is discussed with reference to the recently proposed “coupled model”. The latter assumes a wide extent of the Variscan Orogen, reaching as far as the marginal Radom-Kraśnik Fold-and-Thrust Belt linked with the Bohemian Massif through a major basal detachment. It is concluded that the “decoupled model” is more consistent with the documented seismic and structural evidence as well as with the present knowledge of the heterogeneous pre-Devonian basement in southern Poland.
    Źródło:
    Geological Quarterly; 2020, 64, 2; 377--401
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural inversion of the Pomeranian and Kuiavian segments of the Mid-Polish Trough-lateral variations in timing and structural style
    Autorzy:
    Krzywiec, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058938.pdf
    Data publikacji:
    2006
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Mid-Polish Trough
    Late Cretaceous
    Paleocene-Eocene
    Permo–Mesozoic
    basin inversion
    salt tectonics
    Opis:
    Seven high-quality reflection-seismic lines, calibrated by wells, were interpreted in an effort to assess the timing of inversion and the structural configuration of the Pomeranian and Kuiavian segments of theMid-Polish Trough. Seismostratigraphic analyses of the Upper Cretaceous successions imaged by these seismic lines in the NE and SW marginal troughs of the Mid-Polish Swell document important along-strike stratigraphic and structural changes. Thickness variations of the Upper Cretaceous series, combined with the development of erosional unconformities and associated tectonic deformations indicate that inversion movements commenced during the late Turonian and intermittently persisted into the Maastrichtian and Paleocene. Earliest inversion movements were focused on the margins of the Mid-Polish Trough where Mesozoic sequences are decoupled from the sub-Zechstein series by Zechstein salts. Whereas the NE margin of theMid-Polish Trough is devoid of compressionally reactivated salt structures, its SWmargin is characterized by strong inversion- related salt tectonics. Progressive inversion of the axial parts of the Mid-Polish Trough was accompanied by uplift of its pre-Zechstein floor to and above the level of flanking, non-inverted areas, and by deep truncation ofMesozoic series across the culmination of the evolving Mid-Polish Swell. Inversion movements ceased towards the end of the Paleocene, as evidenced by the burial of the Mid-Polish Swell beneath essentially flat lying Eocene and younger series. Turonian-Paleocene inversion of the Mid-Polish Trough is coeval with the inversion of the Bohemian Massif, the North German Basin and the Sorgenfrei-Tornquist Zone. Inversion of the Mid-Polish Trough is considered to have been controlled mainly by compressional intraplate stresses that built up in the Carpathian foreland during the collision of the Inner Carpathian orogenic wedge with the European passivemargin, attesting to their increasing mechanical coupling, commencing during the Turonian. These stresses relaxed, however, with the end-Paleocene onset of imbrication of the Outer Carpathian domain, reflecting decoupling of the Carpathian orogenic wedge from its foreland.
    Źródło:
    Geological Quarterly; 2006, 50, 1; 151-168
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nieczynne kamieniołomy we wschodniej części synklinorium północnosudeckiego jako źródło informacji o jego rozwoju
    Closed quarries in the eastern part of the north Sudetic synclinorium as a source of information on its development
    Autorzy:
    Solecki, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2175635.pdf
    Data publikacji:
    2022
    Wydawca:
    Poltegor-Instytut Instytut Górnictwa Odkrywkowego
    Tematy:
    Synklinorium północnosudeckie
    pokrywa postwaryscyjska
    inwersja basenu
    North Sudetic Synclinorium
    post-Variscan cover
    basin inversion
    Opis:
    W artykule przedstawiono trzy nieczynne kamieniołomy, w których można obserwować zapis procesów istotnych dla formowania się synklinorium północnosudeckiego. Struktura ta będąca efektem inwersyjnej, laramijskiej deformacji serii osadowo-wulkanicznej basenu postwaryscyjskiego jest stosunkowo uboga w odsłonięcia naturalne, ale dzięki intensywnej, trwającej od średniowiecza, eksploatacji kamieni budowlanych istnieje tu szereg porzuconych kamieniołomów. Zaprezentowano trzy z nich dające wgląd w pierwsze stadia formowania się basenu sedymentacyjnego przy północnym uskoku rowu Świerzawy, wulkanizm ryolitowy czerwonego spągowca - Organów Wielisławskich i efekty laramijskiej inwersji w rejonie Kruczych Skał w pobliżu uskoku Jerzmanic.
    The article presents three closed quarries, in which one can observe a record of processes essential for the formation of the North Sudetic Synclinorium. This structure, which is the result of the Laramic inversion of the post-Variscan basin filled with sedimentary and volcanic series, is relatively poor in natural exposures, but thanks to the intense exploitation of building stones, lasting since the Middle Ages, there are a number of abandoned quarries here. Three of them are presented, giving an insight into: the first stage of the formation of the sedimentary basin at the northern fault of the Świerzawa Graben, the volcanism of the Rotliegend - Wielisławka Organs, and the effects of the Laramian inversion in the area of Krucze Skały close the Jerzmanice Fault.
    Źródło:
    Górnictwo Odkrywkowe; 2022, 63, 1; 39--45
    0043-2075
    Pojawia się w:
    Górnictwo Odkrywkowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neogene activity of the Outer Carpathians recorded by thrust-top basin deposits – an example from the Rzeszów area, Poland
    Autorzy:
    Uroda, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/138906.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Skole thrust sheet
    foreland thrusts
    hinterland thrusts
    Outer Carpathian fold-and thrust belt
    basin inversion
    depocentre migration
    syntectonic sedimentation
    płaszczowina skolska
    Karpaty Zewnętrzne
    migracja depocentrów
    sedymentacja
    Opis:
    The Rzeszów thrust-top basin was formed on the active Skole thrust sheet of the Outer Carpathian fold-and-thrust belt and filled with Miocene syntectonic sediments. New seismic 3D, well and field data were used to define the relationship between sedimentation and tectonic activity and to establish the synkinematic context of the Rzeszów basin-fill architecture. The basin evolution was controlled by the activity of the Carpathian frontal thrust and hinterland thrusts developed in the forelimbs of folds in the Skole thrust sheet, bounding the basin from the north and south, respectively. The activity of the frontal thrust resulted in hinterland-directed depocentre migration and tilting of the syntectonic stratigraphic sequence. Balanced cross-sections have indicated that during the last compressive stage of deformation, the syntectonic deposits filling the basin were shortened by c. 5%, which resulted in the formation of folds and contractional faults. The architecture of the syntectonic deposits and the development of contractional structures reflect the activity of thrusts bounding the basin during compressive deformation of the Carpathian orogenic belt.
    Źródło:
    Acta Geologica Polonica; 2020, 70, 1; 79-96
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated geophysical data for sweet spot identification in Baltic Basin, Poland
    Autorzy:
    Cichostępski, Kamil
    Kwietniak, Anna
    Dec, Jerzy
    Kasperska, Monika
    Pietsch, Kaja
    Powiązania:
    https://bibliotekanauki.pl/articles/191761.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    shale plays
    sweet spots
    seismic inversion
    resolution enhancement
    Polska
    Baltic Basin
    Opis:
    In the paper, the authors present the results of seismic reservoir characterization of shale gas deposits of the Lower Silurian and Ordovician (Sasino Formation and Jantar Formation), which are localized within the onshore part of the Baltic Basin, N Poland. For this purpose, acoustic inversion of seismic data and petrophysical analysis of well-log data were incorporated. The new approach that the authors used for acoustic inversion was the resolution enhancement algorithm, known as spectral blueing, before proceeding with the acoustic inversion process. The spectral blueing procedure enhances the seismic spectrum by weighting it with the well reflectivity spectrum. The resulting enhanced seismic volume manifests itself in higher energies of the high frequency component, while keeping the frequency range constant. With the results of acoustic inversion after the spectral blueing procedure, the authors were able to define two more potential exploration sites within the Ordovician deposits.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2019, 89, 2; 215-231
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Jurassic-Miocene evolution of the Outer Carpathian fold-and-thrust belt and its foredeep basin (Western Carpathians, Poland)
    Autorzy:
    Oszczypko, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058934.pdf
    Data publikacji:
    2006
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Outer Western Carpathians
    rifting
    inversion
    subsidence
    tectono-sedimentary evolution
    peripheral foreland basin
    Opis:
    The Outer Carpathian Basin domain developed in its initial stage as a Jurassic-Early Cretaceous rifted passive margin that faced the eastern parts of the oceanic Alpine Tethys. Following closure of this oceanic basin during the Late Cretaceous and collision of the Inner Western Carpathian orogenic wedge with the Outer Carpathian passive margin at the Cretaceous-Paleocene transition, the Outer Carpathian Basin domain was transformed into a foreland basin that was progressively scooped out by nappes and thrust sheets. In the pre- and syn-orogenic evolution of the Outer Carpathian basins the following prominent periods can be distinguished: (1)Middle Jurassic- Early Cretaceous syn-rift opening of basins followed by Early Cretaceous post-rift thermal subsidence, (2) latest Cretaceous- Paleocene syn-collisional inversion, (3) Late Paleocene toMiddle Eocene flexural subsidence and (4) Late Eocene-EarlyMiocene synorogenic closure of the basins. In the Outer Carpathian domain driving forces of tectonic subsidence were syn-rift and thermal post-rift processes, as well as tectonic loads related to the emplacement of nappes and slab-pull. Similar to other orogenic belts, folding of the Outer Carpathians commenced in their internal parts and progressed in time towards the continental foreland. This process was initiated at the end of the Paleocene at the Pieniny Klippen Belt/Magura Basin boundary and was completed during early Burdigalian in the northern part of the Krosno Flysch Basin. During Early and Middle Miocene times the Polish Carpathian Foredeep developed as a peripheral foreland basin in front of the advancing Carpathian orogenic wedge. Subsidence of this basin was controlled both by tectonic and sedimentary loads. The Miocene convergence of the Carpathian wedge with the foreland resulted in outward migration of the foredeep depocenters and onlap of successively younger deposits onto the foreland.
    Źródło:
    Geological Quarterly; 2006, 50, 1; 169-194
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inwersja hydrochemiczna i wiekowa wód podziemnych na obszarze GZWP nr 401 (Zbiornik Niecka Łódzka)
    Hydrogeochemical and age inversion of groundwater in the area of MGB No. 401 (Łódź Basin)
    Autorzy:
    Rodzoch, A.
    Karwacka, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075250.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Zbiornik Niecka Łódzka
    wychodnia utworów kredy dolnej
    inwersja hydrogeochemiczna
    Łódź Basin
    Lower Cretaceous aquifer
    hydrogeochemical inversion
    Opis:
    The area of Łódź basin is presented in the hydrogeology literature as an area where hydrogeochemical vertical inversion and age vertical inversion between Upper Cretaceous aquifer and Lower Cretaceous aquifer occur. This article describes new facts and research results which will allow to verify the well-known fact about inversion presented above. Furthermore, the presented research results help to form a thesis about groundwater recharge and groundwater discharge of Early Cretaceous aquifer which creates MGB No. 401 (Łódź Basin).
    Źródło:
    Przegląd Geologiczny; 2015, 63, 10/2; 1033--1036
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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