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Wyszukujesz frazę "Polish Miocene" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Uwagi o wyznaczaniu współczynnika kompakcji ksylitów dla pierwszego środkowopolskiego pokładu węgla brunatnego w centralnej Polsce
    Remarks on determining the compaction coefficient of xylites for the first Middle-Polish lignite seam in central
    Autorzy:
    Widera, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075065.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Middle-Polish lignite seam
    xylite compaction
    lignite compaction
    Middle Miocene
    Central Poland
    środkowopolski pokład węgla brunatnego
    kompakcja ksylitu
    kompakcja węgla brunatnego
    środkowy miocen
    Polska centralna
    Opis:
    The First Middle-Polish lignite seam of Middle Miocene age is exploited in all opencast mines in the Konin-Turek area, central Poland. This lignite seam contains a large number of xylites, for which the compaction coefficient was calculated as equal to 1.2. On the other hand, it is known that the compaction coefficient for the whole 1st Middle-Polish lignite seam is approximately 2.0. It follows that the compaction coefficient of xylites is 60% of the compaction coefficient for the whole lignite seam. Therefore, the compaction coefficient for the 1st Middle-Polish lignite seam can be easily determined on the basis of the compaction coefficient of xylites. In contrast to other methods, compaction studies of xylites are characterised by easy measurements and simple calculations, and allow neglecting, e.g., post-sedimentary deformation of the lignite seam.
    Źródło:
    Przegląd Geologiczny; 2013, 61, 5; 304--310
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeoecology of the Middle Miocene foraminifera of the Nowy Sącz Basin (Polish Outer Carpathians)
    Autorzy:
    Gonera, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060628.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Polska
    Paratethys
    Middle Miocene
    foraminifera
    palaeoecology
    Opis:
    Foraminifera from newly exposed outcrop sections located in a Middle Miocene piggyback basin of the Outer Carpathians Nowy Sącz Basin indicate an environment of normal saline waters on the inner shelf and a temperature not lower than 18oC. The area was ideal for the proliferation of: Miliolina spp., Elphidium crispum, Ammonia beccarii and Pararotalia. The habitat below the sediment surface was not colonised by foraminifera. Planktonic foraminifera are absent. The age of the population studied is referred based on the climate-related data, to the Orbulina suturalis Zone of the Miocene Climate Optimum.
    Źródło:
    Geological Quarterly; 2012, 56, 1; 107-116
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Foraminiferal record of the Middle Miocene climate transition prior to the Badenian salinity crisis in the Polish Carpathian Foredeep Basin (Central Paratethys)
    Autorzy:
    Peryt, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060010.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Middle Miocene
    Foraminifers
    Paratethys
    Badenian
    alinity Crisis
    Carpathian Foredeep
    Opis:
    Foraminifers occurring in marls underlying the Middle Miocene Badenian gypsum in the northern Polish Carpathian Foredeep in one borehole section [Młyny (Busko) PIG 1] and in two dewatering pits in operating quarries (Leszcze and Borków) contain well-preserved foraminifers. Sixty-seven species of benthic and twenty-one species of planktonic foraminifers are recorded in the 12-m-thick section of the Młyny borehole. Benthic assemblages are characterized by the dominance of Bulimina and Uvigerina while planktonic assemblages are composed mainly by warm-water orbulinids and Globigerinoides spp. in the lower part of the Młyny section and by temperate-cold water Globigerina spp. in the upper part of the Młyny section as well as the Leszcze and Borków sections. The taxonomic composition of foraminiferal assemblages makes it possible to distinguish two foraminiferal zones in the Młyny borehole: the Orbulina suturalis and Uvigerina costai zones, and only the latter zone is accessible at Leszcze and Borków. The benthic foraminiferal successions in the studied interval suggest oxygenation and productivity changes in the Carpathian Foredeep Basin prior to the Badenian salinity crisis. Four intervals of lowered oxygenation and/or elevated organic flux to the sea-floor are recognized; the intervals in which foraminiferal assemblages suggest marine environments with lowered oxygenation in bottom waters alternate between the intervals where stress markers form less than 50% of the benthic foraminiferal assemblages. Benthic assemblages are moderately to highly diversified, and species have more equal frequencies. The upsection decrease in the proportion of planktonic foraminifers reflects the shallowing of the basin accompanied by a decrease in the temperature gradient between the upper (warmer) and deeper (colder) water beds. The average palaeotemperature of water based on d18O of Uvigerina and Globigerina decreased by ca. 2 and ca. 6°C, respectively (from 9.9 and 17.4°C in the Orbulina suturalis Zone to 7.9 and 11.5°C in the Uvigerina costai Zone, respectively). Below the gypsum, the d18O values of both benthic and planktonic foraminifers show quite large variations possibly due to the salinity increase. Coeval domination of benthic foraminiferal assemblages by Bulimina suggests increased surface water productivity and an increased organic flux to the sea-floor prior to the onset of evaporite deposition and/or salinity increase.
    Źródło:
    Geological Quarterly; 2013, 57, 1; 141--164
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Statistical analysis of petrophysical parameters of Middle Miocene rocks from the Polish Carpathian Foredeep
    Autorzy:
    Bala, M. J.
    Jarzyna, J. A.
    Mortimer, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060540.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Middle Miocene
    Carpathian Foredeep
    fractal correlation dimension
    statistical analysis
    well logging data
    Opis:
    Sarmatian thin-bedded sandstone and shales have been a subject of statistical studies to differentiate between good and poor reservoir rocks and to show gas-saturated layers in comparison to water-saturated strata. Statistical studies including fractal analysis were performed on well logging data from the Sędziszów 34 borehole drilled in a belt of hydrocarbon deposits that continue below the northern edge of the Carpathian–Stebnik overthrust. Lithological variability and porosity differentiation and changes in water saturation were traced on the basis of the results of well logging interpretation. Basic statistics and histograms of petrophysical parameters have been analysed. A generalized second order fractal correlation dimension was calculated for all parameters and analysed as for a time series. Fractal dimensions did not correlated with the parameters, but good positive correlations between them and the parameters were observed and showed that the curves analysed had the same type of complexity. High correlation coefficients showed pairs of fractal dimensions for those parameters which had similar variability and the same curve roughness. The fractal correlation dimension described the type of complexity of the parameter (curve roughness) and indicated, for example, how shaliness influenced the reservoir properties of the local Middle Miocene. Therefore, the results were also useful in practice, which gave extra information on thin-bedded reservoir rocks.
    Źródło:
    Geological Quarterly; 2012, 56, 4; 665--680
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Foraminiferal and calcareous nannoplankton biostratigraphy of the upper Badenian–lower Sarmatian strata in the SE Polish Carpathian Foredeep
    Autorzy:
    Peryt, Danuta
    Garecka, Małgorzata
    Peryt, Tadeusz Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2058716.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Middle Miocene
    Carpathian Foredeep Basin
    foraminifera
    nannofossils
    palaeoenvironments
    Opis:
    The Badenian/Sarmatian boundary in the Central Paratethys has been traditionally identified by the faunal turnover recording an important environmental change possibly controlled by the change from marine to brackish conditions. The strata below the Badenian/Sarmatian boundary in the northern Carpathian Foredeep are included into the Pecten beds, and those above it into the Syndesmya beds. Foraminiferal study of the Babczyn 2 borehole which is one of the crucial sections in the northern Carpathian Foredeep, well-known for the depositional age of rhyolite tuff within the Pecten beds dated by Śliwiński et al. (2012) at 13.06 ±0.11 Ma, indicated that in fact the boundary occurs within the Syndesmya beds. This conclusion is based upon the rapid change from a stenohaline foraminiferal fauna to a euryhaline one, and the appearance of the species Anomalinoides dividens, the taxon regarded as the marker for the Sarmatian. In the Babczyn 2 and Cieszanów 1 (located ~2.5 km basinward of Babczyn 2) boreholes, Anomalinoides dividens appears 3.1–3.8 m above the replacement of stenohaline by euryhaline foraminifers. The calcareous nannoplankton study shows that the upper Badenian and the lower Sarmatian strata in the studied sections represent the NN6, undivided NN6-NN7, and NN7 zones.
    Źródło:
    Geological Quarterly; 2021, 65, 1; 18
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New data on the late Badenian–Sarmatian deposits of the Nowy Sacz Basin (Magura Nappe, Polish Outer Carpathians) and their palaeogeographical implications
    Autorzy:
    Oszczypko-Clowes, M.
    Oszczypko, N.
    Wójcik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059227.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Middle Miocene
    freshwater and marine deposits
    lithostratigraphy
    calcareous nannoplankton
    Opis:
    In the Nowy Sacz Basin, newly exposed Middle Miocene deposits have been studied and sampled in the Kamienica Nawojowska, Poprad and Dunajec rivers. The calareous nannoplankton of the freshwater to marine deposits was examined. Palegrey and brown clayey shales with plant remains and thin seams of lignite represent the freshwater depos its of the Biegonice Formation. These deposits pass upwards into ca. 50 m thick packet of brackish and marine deposits, represented mainly by dark marly shales with bivalves and gastropods of the Iwkowa and Niskowa formations. These deposits contain relatively rich late Badenian to Sarmatian calcareous nannoplakton (NN6/7 Zone).
    Źródło:
    Geological Quarterly; 2009, 53, 3; 273-292
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Correlation of Late Badenian salts of the Wieliczka, Bochnia and Kalush areas (Polish and Ukrainian Carpathian Foredeep)
    Autorzy:
    Andreyeva-Grigorovich, A. S.
    Oszczypko, N.
    Savitskaya, N. A.
    Ślączka, A.
    Trofimovich, N. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/191505.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    biostratigraphic dating
    salt deposits
    Middle Miocene
    Carpathian Foredeep
    Polska
    Ukraine
    Opis:
    Within the Carpathian Foredeep, open marine basin evolved into restricted evaporitic basin during the Badenian (Serravallian), and along the Carpathian front chloride sub-basins developed. The studies of foraminifera and calcareous nannoplankton were conducted to obtain new biostratigraphic data which could constrain the age and correlation of the salt deposits between Wieliczka-Bochnia in Poland, and Kalush in the Ukraine. These studies proved that chloride deposits (in the Ukrainian territory also potassium salts) originated generally during the same period corresponding to the Late Badenian NN6 zone and undivided NN6-NN7 zone. The uppermost part of sub-evaporitic beds belongs to the boundary between the NN5 and NN6 zones, although locally (Bochnia Salt Mine) only the NN6 zone was found. This suggests that the lower boundary of salt deposits can be diachronous. Deposits overlying the salt (Chodenice and lowermost part of Grabowiec beds - Bogucice Sands) represent the Late Badenian NN6/NN7 zone. The similarity in age between the folded Middle Miocene strata in Poland (Zgłobice Unit) and the Ukraine (Sambir Unit) implies that they were folded during the same time and that they can represent one tectonic unit, develo ped in front of the advancing Carpathian orogen.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2003, 73, No 2; 67-89
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ przerostów piaszczystych w węglu brunatnym na działalność górniczą : przykład ze złoża „Pątnów IV” (okolice Konina) w środkowej Polsce
    The impact of sandy interbeddings in lignite on mining activities : an example from the “Pątnów IV” deposit (Konin vicinity) in central Poland
    Autorzy:
    Dziamara, Mariusz
    Glacová, Veronika
    Klęsk, Jakub
    Marschalko, Marian
    Wachocki, Robert
    Widera, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2087056.pdf
    Data publikacji:
    2022
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    krzemoklastyki
    stożek krewasowy
    pierwszy środkowopolski pokład węgla brunatnego
    górnictwo odkrywkowe
    środkowy miocen
    siliciclastics
    crevasse splays
    first Mid-Polish lignite seam
    opencast mining
    Middle Miocene
    Opis:
    Lignite from the “‘Pątnów IV” deposit is mined in the Jóźwin IIB opencast by the Konin Lignite Mine. Within the exploited 1st Mid-Polish lignite seam, there are layers of sand with a thickness of over 5 m. Based on field observations and geological mapping, these sandy interbeddings are interpreted as deposits of two or three crevasse splays of different ages. Due to such a large thickness of sands, only the upper bench of the lignite seam is currently mined in the Jóźwin IIB opencast. On the other hand, the exploitation of the lower and middle lignite benches of this seam is unprofitable at present.
    Źródło:
    Przegląd Geologiczny; 2022, 70, 5; 376--383
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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