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Wyświetlanie 1-2 z 2
Tytuł:
Zachodni i południowy zasięg kratonu wschodnioeuropejskiego
Western and southern extent of the East European Craton
Autorzy:
Mizerski, W.
Stupka, O.
Powiązania:
https://bibliotekanauki.pl/articles/2074377.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
platforma wschodnioeuropejska
platforma scytyjska
geotektonika
Ukraina
East European Platform
geotectonics
Scythean Platform
Polska
Ukraine
Opis:
The problem of the western and southern borders of the East European Platform is still subject to debate; different authors variously put this border on the geological maps of Europe. The deepness of the crystalline basement between the T–T zone and the Variscan orogen and within the so-called Scythian Platform makes recognizing the geotectonic structure of the area difficult. There are relatively few and small regions with rocks older than Mesozoic. There is no direct access to Precambrian strata over most of the area. Most structural information is provided by geophysical methods, but they do not allow to date the age of consolidated basement. The paleomagnetic studies of the area give equivocal results. Our analysis of available materials from between the T–T zone and the Variscan orogen and the Scythian Platform suggests that the Precambrian Platform has a larger extent than it was generally assumed. The platform extends westwards even as far as the front of the Variscan orogen, and to the SWand S it may reach the Alpine folded structures.
Źródło:
Przegląd Geologiczny; 2005, 53, 11; 1030-1039
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remarks on the correlation of tectonic blocks in the foreland of the East European Craton in Poland with those in Ukraine
Autorzy:
Mizerski, W.
Stupka, O.
Olczak-Dusseldorp, I.
Powiązania:
https://bibliotekanauki.pl/articles/2060196.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
marginal part of the East-European Craton
Holy Cross Mountains
Western Ukraine
tectonics
geotectonic evolution
Opis:
According to common interpretations, two narrow crustal blocks are supposed to occur on the south-western edge or in the foreland of the East European Craton. The first one, bounded on the NE by the Nowe Miasto-Radom-Rava Ruska fault system, and on the SW by the Holy Cross Fault, stretches NW-SE from the Łysogóry-Radom region in Poland to the Rava Ruska Zone in Ukraine. The second one, bounded on the NE by the Holy Cross Fault, and from the SW by the Chmielnik-Ryszkowa Wola–Krakovets fault zone, is thought to tie together the Kielce area of the Holy Cross region with the Kokhanivka Zone in Ukraine. Both these blocks may have formed in connection with the development of regional listric faults during Precambrian asymmetric stretching of the Baltica continent, and were part of the marginal zone of the East European Craton. The sedimentary development of the blocks can be comparable to the Blake Plateau off the Florida coast. Both the Paleozoic sections and tectonic deformation styles in the Polish and Ukrainian segments of these blocks are different. Paleozoic tectonic structures of the Holy Cross region have a southern vergence, while the Paleozoic rocks of the Rava Ruska and Kokhanivka regions in western Ukraine are thrust towards the NE. This demonstrates the different tectonic evolution of the Paleozoic succession between the Holy Cross region and western Ukraine, and makes questionable the genetic relationships between these two regions. In this situation, the tectonic blocks of the foreland should be considered heterogeneous. Structural-facies evidence suggests that the SW boundary of the East European Craton should be moved at least to the Chmielnik–Ryszkowa Wola-Krakovets fault.
Źródło:
Geological Quarterly; 2016, 60, 1; 124--132
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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