The significance of the Variscan orogeny in the Świętokrzyskie Mountains (Mid Polish Uplands)

Stupnicka, Ewa

doi:10.1007/bf01828615

Cited by 17 publications

(9 citation statements)

References 3 publications

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“…Therefore, although the main Variscan signature is the slightly south-verging folding, a polyphase deformation can be deduced, especially marked by an early phase of shortening, locally being north-verging. As a consequence and in spite of the main south-verging, the geometry of the folds in the Upper Palaeozoic rocks does not necessarily indicate a southvergent large-scale thrust, as postulated by Stupnicka (1992). In contrast to Stupnicka (1992), our structural interpretations are derived from the presence of disharmonic folding and steep faults.…”

Section: Variscan Polyphase Dejormationmentioning

confidence: 64%

“…The NNE-SSW-oriented shortening led to WNW-ESE-trending folds (e.g. Stupnicka 1992;Mizerski, 1995) and to the reactivation of preexisting faults, resulting in the main present-day structural trends in the Holy Cross Mountains.…”

Section: Outline Of the Geologymentioning

confidence: 99%

“…The WNW-ESE-oriented Holy Cross Fault separates the Lysog6ry Unit and the Kielce Unit. The Holy Cross Fault, inferred from geological mapping but not accessible in the field for direct observation, is interpreted as a shallow, south-verging thrust fault (Stupnicka 1988(Stupnicka , 1992, a steep normal fault (Mizerski 1979;Znosko 1983) or a system of several faults (Znosko 1996). In the present study, the Holy Cross Fault is included in a fault array, the so called 'Holy Cross Fault zone'.…”

Section: Outline Of the Geologymentioning

confidence: 99%

“…Particularly heated discussions, althouth far from reaching a consensus, were focused on the impact of Late Carboniferous versus Early Devonian tectonic movements on the present-day structural framework of the mountains (e.g. Stupnicka 1992;Dadlez et al 1994;Mizerski 1995;Znosko 1996Znosko , 2001.…”

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confidence: 99%

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Partitioning pre-, syn- and post-Variscan deformation in the Holy Cross Mountains, eastern Variscan foreland

Lamarche

Lewandowski

Mansy

et al. 2003

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In this study we demonstrate how a combined structural, sedimentological and palaeomagnetic approach provides a new perspective on the tectonic evolution of the Holy Cross Mountains. In the field, we performed a structural and sedimentological analysis of Palaeozoic rocks. Our analysis was complemented by a palaeomagnetic study and by the restoration of balanced cross sections in Palaeozoic and Mesozoic rocks. Different steps of deformation were restored for a c.350 Ma period. (1) The extensional tectonics of the Devonian basin was unravelled: the resulting normal fault system constituted the fundamental structural control for the later Variscan tectonic inversion and Alpine deformations. (2) The style of Variscan folding is characterized and quantified by way of a cross section across the Holy Cross Mountains. (3) The role of the reactivation of Variscan faults during the Permo-Triassic initiation of the Polish Basin was examined. (4) The localized Alpine compressive deformation was quantified and shown to contribute only to a minor degree to the present-day state of deformation in the Holy Cross Mountains. The Holy Cross Fault zone is the product of the interplay of changing transtensional and transpressional settings during the Variscan diastrophic cycle, with the final effect of the Variscan evolution being the flower-like structure of the Holy Cross Fault zone.

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Section: Variscan Polyphase Dejormationmentioning

confidence: 64%

Section: Outline Of the Geologymentioning

confidence: 99%

Section: Outline Of the Geologymentioning

confidence: 99%

mentioning

confidence: 99%

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Partitioning pre-, syn- and post-Variscan deformation in the Holy Cross Mountains, eastern Variscan foreland

Lamarche

Lewandowski

Mansy

et al. 2003

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“…The Holy Cross Mountains belong to the Middle Polish Anticlinorium and form a Palaeozoic horst that can be further subdivided into two regions (Stupnicka 1992 and references therein), Łysogóry (or Northern) and Kielce (or Southern; north and south of the Holy Cross Dislocation, respectively, Fig. 1B).…”

Section: Geological Settingmentioning

confidence: 99%

Diversity of the Schizophoria lineage (Brachiopoda: Orthida) in the Lower and Middle Devonian of Poland and adjacent areas

Halamski

2012

Paläontol Z

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The nominative subgenus of Schizophoria (Brachiopoda, Orthida) is represented in the Lower and Middle Devonian of Poland and of the western Ukraine by six taxa: late Emsian Schizophoria (S.) interstrialis, late Eifelian S. (S.) schnuri biscissa, early Givetian S. (S.) schnuri schnuri, middle to late Givetian S. (S.) schnuri prohibita ssp.n., middle Givetian S. (S.) parvaepunctata and late Givetian S. (S.) sp.n. (unnamed for lack of sufficient material). Morphotypes referable to S. (S.) schnuri biscissa and to S. (S.) schnuri junkerbergiana co-occur in the same outcrop (not necessarily in the same levels), wherefore the separation of these subspecies may be maintained only if they are considered as chronosubspecies (unverifiable on the studied material) but not as geographic variants (hypothesis falsified by the studied material). A lectotype for S. (S.) interstrialis and a neotype for S. (S.) parvaepunctata are selected. Punctae diameter and density (either an important systematic character according to some authors or devoid of such value according to other ones) were investigated: they show important within-individual and within-sample variation, wherefore they cannot serve to distinguish related species. On the contrary, punctae character combinations are sufficiently constant to help differentiate subgenera or groups of species. In the studied material, three clusters are distinguished on the basis of the punctae characteristics: S. (Pachyschizophoria) and S. (S.) parvaepunctata differ between each other and from all other investigated species of S. (Schizophoria); the latter are indistinguishable on the sole basis of punctae characteristics.Kurzfassung Die nominative Untergattung von Schizophoria (Brachiopoda, Orthida) ist im Unter-und Mitteldevon Polens und der westlichen Ukraine durch sechs Taxa vertreten: Schizophoria (S.) interstrialis aus dem oberen Emsium, Schizophoria (S.) schnuri biscissa aus dem oberen Eifelium, S. (S.) schnuri schnuri aus dem unteren Givetium, S. (S.) schnuri prohibita ssp.n. aus dem mittleren bis oberen Givetium, S. (S.) parvaepunctata aus dem mittleren Givetium, und S. (S.) sp.n. (nicht benannt wegen des nicht ausreichendes Material) aus dem späten Givetium. Die zu S. (S.) schnuri biscissa und S. (S.) schnuri junkerbergiana beziehenden Morphotypi kommen zusammen an derselben Lokalität vor (aber nicht notwendigerweise in demselben Stratum), darum können sie nur als Chronosubspecies (nicht belegbar nach dem untersuchten Material) unterschieden werden, aber nicht als geographische Varianten (Hypothese widerlegt nach dem untersuchten Material). Ein Lectotypus für S. (S.) interstrialis und ein Neotypus für S. (S.) parvaepunctata werden ausgewählt. Der Durchmesser und die Dichte der Poren (nach einigen Autoren ein gutes taxonomisches Merkmal und nach anderen nicht), werden untersucht: Die Variation innerhalb eines Individuums und einer Probe ist bedeutend, darum kann sie nicht benutzen werden, um die verwandte Arten zu unterscheiden. Im Gegenteil, Porenmerkmalekombinationen s...

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Debates about the pre-Variscan tectonics of Poland

Dadlez

1995

Stud Geophys Geod

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The significance of the Variscan orogeny in the Świętokrzyskie Mountains (Mid Polish Uplands)

Cited by 17 publications

References 3 publications

Partitioning pre-, syn- and post-Variscan deformation in the Holy Cross Mountains, eastern Variscan foreland

Partitioning pre-, syn- and post-Variscan deformation in the Holy Cross Mountains, eastern Variscan foreland

Diversity of the Schizophoria lineage (Brachiopoda: Orthida) in the Lower and Middle Devonian of Poland and adjacent areas

Debates about the pre-Variscan tectonics of Poland

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