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    Wyświetlanie 1-6 z 6
    Tytuł:
    Regionalizacja tektoniczna Polski-Góry Świętokrzyskie i regiony przyległe
    Tectonic subdivision of Poland: Holy Cross Mountains and adjacent areas
    Autorzy:
    Konon, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074566.pdf
    Data publikacji:
    2008
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Góry Świętokrzyskie
    Kielce
    Łysogóry
    rów Mazovia-Lublin
    rów Odrzywołu–Ćmielowa
    strefa fałd
    zrąb radomsko-kraśnicki
    Holy Cross Mountains Fold Belt
    Łysogóry Fold Zone
    Radom-Kraśnik Horst
    Mazovia-Lublin Graben
    Kielce Fold Zone
    Opis:
    The Holy Cross Mountains Fold Belt, the Odrzywół–Ćmielów Graben, the Radom-Kraoenik Horst and the Mazovia-Lublin Graben are located in the contact zone between the Paleozoic Platform and the East European Craton, eastwards of the Variscan foreland basin. The Holy Cross Mountains Fold Belt consists of the Kielce and the Łysogóry Fold Zones. The boundary between the Kielce and Łysogóry Fold Zones is formed by the Holy Cross Fault. Southwestern border of the Kielce Fold Zone is probably consistent with the extent of the folds in the Małopolska Block. The Łysogóry Fold Zone is probably bordered from northeast by the Skrzynno Fault, which is also a boundary of the Radom-Kraoenik Horst from the southwest. The Radom-Kraoenik and the Mazovia-Lublin Graben are separated by the Kazimierz-Ursynów Fault. Northeastern border of the graben is the Kock Fault.
    Źródło:
    Przegląd Geologiczny; 2008, 56, 10; 921-926
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Joints and mineral veins during structural evolution: case study from the Outer Carpathians (Poland)
    Autorzy:
    Świerczewska, A.
    Tokarski, A.K.
    Hurai, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059456.pdf
    Data publikacji:
    2000
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Outer Carpathians
    mineral veins
    joints
    fluid inclusion
    fold belts
    thrust belts
    Opis:
    This paper focuses on mineral veins hosted in small-scale fractures within the Tertiary sandstones of the Magura nappe (Outer Carpathians). Joints, faults and tension gashes record three successive stages of the nappe structural evolution: (1) synsedimentary folding and thrusting, (2) regional rotation and (3) late-orogenic collapse. The flow of mineral-bearing fluids was channelized by small-scale fractures resulting in calcite and quartz-calcite veins. Folding: columnar calcite formed the most common filling of early joints and the joints-related tension gashes and strike-slip faults. The mineralisation was restricted to sandstones containing primary carbonates. Rotation: precipitation of columnar and fibrous calcite was largely restricted to joints reactivated as strike-slip faults. Collapse: the collapse-related mineralisation is the most abundant. Wide-spread fluid flow was channelized by normal faults resulting in fibrous calcite and quartz-calcite along these faults whereas several blocky and drusy calcite generation and single high temperature quartz-calcite assemblage precipitated in numerous adjoining joints.
    Źródło:
    Geological Quarterly; 2000, 44, 3; 333-339
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pre-Ordovician polyphase tectonics of the Cambrian sequences in the Kielce Unit, Holy Cross Mts. (Central Poland)
    Autorzy:
    Gągała, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059549.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Holy Cross Mountains
    Cambrian
    tectonic phases
    mesostructures
    thrust and fold belt
    Opis:
    On a basis of tectonic mesostructures, the pre-late Tremadocian tectonic event (Sandomirian “phase”), believed to account for deformation of the Cambrian system in the Kielce Unit (Holy Cross Mts., Central Poland), has been subdivided into 3 successive tectonic episodes of different kinematics. During the first stage (D1), flat, westerly vergent thrusts originated, giving rise to gravitational sliding. Subsequently, during D2, the entire sequence was imbricated by the northerly vergent thrusts. In the terminal phase (D3), map-scale folds developed, changing inclinations of previously formed structures.Mode of deformation during the D2 stage is typical for thrust and fold belts. Absolute dating of these events remains speculative, but the pre-late Tremadocian age of the D1 and D2 phases is evident. The D3 is considered as a continuation of the D2, but alternative concepts are also acceptable in the light of the presented data.
    Źródło:
    Geological Quarterly; 2005, 49, 1; 53--66
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Variscan deformation events in the Bardo Syncline revealed by biotite K-Ar dating of Ludlow-age tuffite (Holy Cross Mountains, Poland)
    Autorzy:
    Wójcik, Emil
    Pacek, Adrian
    Pelc, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2058714.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Niewachlów tuffites
    biotite deformation dating
    illite-smectite
    Ludlow
    Daleszyce Fault Zone
    Holy Cross Fold Belt.
    Opis:
    n the Bardo Syncline (Holy Cross Mountains, Poland), two beds of tuffite (named the Niewachlów tuffites) have been discovered within greywackes of Ludlow (Silurian) age. K-Ar dating of the lower bed yielded an age of 292.8 ±4.0 Ma, while the upper bed provided an age of 341.9 ±4.3 Ma. The dates pertain to metamorphic alteration of the tuffite, related to reactivation of the Daleszyce Fault Zone. In this zone, biotite crystals present in the foliation zones were recrystallized and their K-Ar isotopic system was rejuvenated in a temperature range of ~270–300°C. The dates that were obtained define the ages of two tectono-metamorphic episodes and reflect the timing of displacements along the fault which, in turn, reflect two deformation phases during the Variscan Orogeny (Mississippian and Early Permian). Moreover the dates may be correlated with Late Variscan magmatic activity in the Holy Cross Mountains and adjacent areas. The deformation of the Daleszyce Fault Zone may be regarded as resulting from displacements of lithospheric blocks within the Trans European Suture Zone during the Late Variscan reconstruction of the Baltica palaeocontinent margin.
    Źródło:
    Geological Quarterly; 2021, 65, 1; 15
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synfolding calcite veins in the Holy Cross Mountains Fold Belt, central Poland
    Autorzy:
    Rybak-Ostrowska, B.
    Konon, A.
    Nejbert, K.
    Kozłowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059976.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    bedding-parallel calcite veins kinematic indicators
    flexural slip
    Late Paleozoic buckle folding
    Holy Cross Mountains Fold Belt
    Opis:
    Bedding-parallel calcite veins in Devonian rocks from the southern part of the Holy Cross Mountains Fold Belt in central Poland occur as tabular bodies on shallow dipping as well as vertical Late Paleozoic map-scale and mesoscopic fold limbs. The syntaxial and antitaxial bedding parallel veins contain kinematic indicators such as rotated blocks, fibre boundary steps, boudin trains, beef-like structures and congruous steps. These structures show a sense of movement consistent with the flexural slip typical of folding resulting from buckling during layer-parallel shortening. We propose the mechanism of the gradual formation of the veins and the progression of fabric development which is mostly consistent with an increasing dip angle of the fold limbs and their gradual deformation. Textures of the veins and kinematic indicators within the veins point to the syntectonic growth of calcite during the Late Paleozoic buckle folding in the Holy Cross Mountains Fold Belt.
    Źródło:
    Geological Quarterly; 2014, 58, 1; 99--116
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geodynamiczne i tektoniczne uwarunkowania ewolucji basenów przedgórskich, z odniesieniami do zapadliska przedkarpackiego
    Geodynamic and tectonic control on evolution of foreland basins, with references to the Carpathian Foredeep Basin
    Autorzy:
    Krzywiec, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074463.pdf
    Data publikacji:
    2006
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    miocen
    basen przedgórski
    system osadowy
    budowa geologiczna
    zapadlisko przedkarpackie
    foreland basin
    continental collision
    fold-thrust belts
    lithospheric flexure
    syn-tectonic sedimentation
    Carpathian Foredeep
    Miocene
    Opis:
    Main geodynamic and tectonic mechanisms responsible for evolution of foreland basins and their sedimentary infill are discussed. They include flexure of the lower lithospheric plate and its extension, growth of the orogenic wedge and sedimentation / erosion within the foreland basin. Recently formulated models of foreland basin system include four major depositional zones that are characterised by various tectono-sedimentary processes. Of particular importance for evolution of foreland basins is very complex interplay of tectonics and sedimentation, and significant lateral shift of tectonic and depositional zones. Evolution of frontal part of the orogenic wedge could be deciphered using growth strata i.e. depositional sequences formed in vicinity of growing thrust-related structures. Certain aspects of Miocene (Late Badenian–Sarmatian) evolution of the Polish Carpathian foredeep basin are discussed in a context of presented models of foreland basins.
    Źródło:
    Przegląd Geologiczny; 2006, 54, 5; 404-412
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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