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Wyszukujesz frazę "Garecka, M." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Fossil karst in the Jurassic of Kościuszko Mound in Kraków (southern Poland)
Autorzy:
Wójcik, A.
Garecka, M.
Olszewska, B.
Wódka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059809.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
South Poland
Cracow Upland
karst
Jurassic
Cretaceous
Miocene
calcareous nannofossils
foraminifers
Opis:
Study of four boreholes (each 100 mdeep) drilled in the St. Bronisława Hill (a part of the horst of the Wolski Forest, Kraków area) indicated that within the Oxfordian limestone occur claystones with calcareous rubble (detritus), filling the fossil karst forms. The claystones, that in some cases show planar stratification, contain assemblages of Late Cretaceous (Campanian–Maastrichtian) foraminifers. The Middle Miocene planar laminated limestones have also been found in cavities formed in the Middle Oxfordian limestones. Miocene deposits of this type, filling the fossil karst, were not previously known from the area of Kraków. Both the Upper Cretaceous and the Middle Miocene deposits document probably marine sedimentation that resulted in the filling of the karst system. This type of karst was probably formed before the transgression of the Upper Cretaceous sea and the subsequently before the transgression of the Middle Miocene sea into the area of present horst of the Wolski Forest.
Źródło:
Geological Quarterly; 2015, 59, 1; 61--70
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radioisotopic age and biostratigraphic position of a lower Badenian tuffite from the western Polish Carpathian Foredeep Basin (Cieszyn area)
Autorzy:
Bukowski, K.
Sant, K.
Pilarz, M.
Kuiper, K.
Garecka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059773.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Miocene
Badenian
Carpathian Foredeep
tuffites
40Ar/39Ar dating
biostratigraphy
Opis:
The early Badenian interval in the Central Paratethys realm is characterized by a major marine transgression into the Pannonian and Carpathian Foredeep basins. In the western part of the Polish Carpathian Foredeep, Badenian sedimentation started generally with conglomerates (Dębowiec Formation) passing into a thick succession of claystones and mudstones with rare sandstone interbeds (Skawina Formation). Profiles containing a full sequence of lower Badenian strata are relatively rare, and are mainly known from boreholes. In this paper, we present new results on samples taken from such a borehole (Kaczyce K2/07) located near the town of Cieszyn. We focus on reconstructing the chronology of the lower Badenian marine sediments at the beginning of the transgression in the Carpathian Foredeep (lower Skawina Fm.) using radio-isotopic dating (40Ar/39Ar) of a volcanoclastic layer (tuff and tuffite) and biostratigraphy of calcareous nannoplankton and foraminifera.The weighted mean 40Ar/39Ar age for sanidine separates from the tuff provided an age of 14.27 ± 0.03 Ma. This age is consistent with the NN5 and MNN5a nannofossil zones determined in this study. Our foraminiferal assemblages show that the basal beds of the Skawina Formation up to the tuffites correspond to the Orbulina suturalis–Praeorbulina glomerosa Zone (according to Cicha et al., 1975) and cover the interval of the Lower Lagenidae Zone–lowermost Upper Lagenidae Zone (Grill, 1941). The petrographic data from the tuffite allow correlation of the tuffite from the Kaczyce K2/07 borehole to the level of the Chełmek Tuffite Bed (Alexandrowicz, 1997) providing a regional correlation horizon for future studies.
Źródło:
Geological Quarterly; 2018, 62, 2; 303--318
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The position and age of flysch deposits in the Crimean Mountains (Southern Ukraine)
Autorzy:
Oszczypko, N.
Ślączka, A.
Bubniak, I.
Olszewska, B.
Garecka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060566.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Ukraine
Crimean Mts.
stratigraphy
micropalaeontology
flysch
Opis:
The Crimean Mountains (CM) are regarded as part of the Alpine-Himalaya orogenic belt related to the collision of the Eurasian and African plates. Our research in the CM has allowed confirming the existence of at least two flysch formations of different ages: the Taurida Flysch Formation (Upper Triassic/Lower–? Middle Jurassic) and the Sudak Formation (uppermost Jurassic/Lower Cretaceous) in the western and eastern sectors of the CM, respectively. After the Middle Jurassic volcanism, the freshwater claystones with coal-bearing intercalations, as well as local alluvial fan conglomerates were deposited. Then, following the Oxfordian/Kimmeridgian marine transgression, three separated Tithonian/Berriasian carbonate platforms developed: Baydarska, Chatyr-Dag and Demerji/Karabi. At the turn of the Late Jurassic, the deep-water Sudak Basin (eastern sector of the CM) began to develop in the eastern periphery of the Demerji/Karabi carbonate platform. This basin, dominated by turbiditic deposition, was probably connected with the Great Caucasus sedimentary system. Finally, distal flysch sedimentation in the Sudak Basin was followed by debris-flow deposits, with huge blocks of Upper Jurassic limestones. These blocks were derived from destruction of the Karabi carbonate platform. During the Berriasian/Valanginian, the eastern sector of the CM began to subside. As a result, both carbonate platforms (western CM) and the debris flow fans of the Sudak Basin (eastern CM) were overlain by marly shales and/or distal turbidites. This type of deposition lasted until the Aptian/Albian. In the post-Albian period, the Alushta-Salgir tectonic zone was transformed into a SE-dipping thrust fault with at least 10 km amplitude of overthrusting.
Źródło:
Geological Quarterly; 2017, 61, 4; 697--722
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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