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    Tytuł:
    Origin of natural gases in the autochthonous Miocene strata of the Polish Carpathian Foredeep
    Autorzy:
    Kotarba, M. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/191377.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    microbial methane
    stable carbon isotopes
    thermogenic hydrocarbon gases
    carbon dioxide
    nitrogen
    sulphide hydrogen
    autochthonous Miocene strata
    Polish Carpathian Foredeep
    Opis:
    Methane concentrations in natural gases accumulated in the autochthonous Miocene strata of the Polish Carpathian Foredeep (between Kraków and Przemyśl) usually exceeded 90 vol%. Methane and part of the ethane were generated during microbial reduction of carbon dioxide in the marine environment, mainly during the sedimentation of Miocene clays and muds. It is possible that this microbial process has continued even recently. Higher light hydrocarbons (mainly propane, butanes and pentanes) were generated during the diagenesis and the initial stage of the low-temperature thermogenic process. Very small changes in the values of geochemical hydrocarbon indices and stable isotope ratios of methane, ethane and propane with depth are evidence for similar gas generation conditions within the whole Badenian and Lower Sarmatian successions. Only in a few natural gas accumulations within the Upper Badenian and Lower Sarmatian reservoirs are thermogenic gases or thermogenic components present, both generated from mixed, type III/II kerogen. These thermogenic gases, now accumulated mainly in the bottom part of Miocene strata, probably resulted from thermogenic processes in the Palaeozoic– Mesozoic basement and then migrated to the Miocene strata along the fault zones. The presence of low hydrogen concentrations (from 0.00 to 0.26 vol%) within the Miocene strata is related to recent microbial processes. Carbon dioxide and nitrogen, which are common minor constituents, were generated in both microbial and low-temperature thermogenic processes. However, CO2 has also undergone secondary processes, mainly dissolution in water during migration. Hydrogen sulphide, which occurs in natural gases of Lower Badenian strata, was most probably generated during microbial sulphate reduction of the Lower Badenian gypsum and anhydrites.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 409-424
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Origin of parautochthonous Polish moldavites : a palaeogeographical and petrographical study
    Autorzy:
    Szopa, K.
    Badura, J.
    Brachaniec, T.
    Chew, D.
    Karwowski, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/191842.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Polish tektites
    redeposition
    river terrace
    Miocene
    Pleistocene
    drainage basin
    Opis:
    In this article, the most recent moldavite discoveries in Poland and their host sediments are characterised and discussed. They were discovered at Lasów, located about 8 km north of Zgorzelec (Poland) and Görlitz (Germany), about 700 m from the Polish-German border, close to the Lusatian Neisse (Nysa) River. The tektites were collected from Vistulian (Wiechselian) glacial age sand and gravel of a closed quarry pit, associated with the river terraces. In the Lasów area, the moldavite-bearing sediments are Pleistocene in age and represent Lusatian Neisse terrace deposits. They were redeposited from the upper part of the drainage basin of the Lusatian Neisse, probably washed out from the Miocene sediments that filled the Zittau Depression, the Berzdorf–Radomierzyce Depression, the Višňová Depression and the tectonically uplifted Izera Mts. and Działoszyn Depression. The erosion of Miocene deposit occured on a large scale in the uplifted foothills of the Upper Miocene Izera, Lusatia and Kaczawa complexes. The sediment cover was removed from the Działoszyn Depression. The drainage basin of the Lusatian Neisse is the area where moldavites were formed by the Nördlinger Ries impact. The source area of moldavite is the same for the Miocene deposits around Gozdnica, as well as for the Pleistocene sediments at Lasów.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2017, 87, 1; 1-12
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geology and petroleum geochemistry of Miocene strata in the Polish and Ukrainian Carpathian Foredeep and its Palaeozoic–Mesozoic basement
    Autorzy:
    Kotarba, M. J.
    Peryt, T. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/191445.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    petroleum system
    prospectives of hydrocarbon exploration
    Miocene
    Palaeozoic–Mesozoic basement
    Carpathian Foredeep
    Polska
    Ukraine
    Opis:
    This thematic issue of Annales Societatis Geologorum Poloniae contains a set of papers presenting results of a special research project entitled "Petroleum exploration prospectives and hydrocarbon potential of the Miocene strata and Mesozoic–Palaeozoic basement in the borderland area of Poland and Ukraine", led by research teams from the AGH University of Science and Technology in Kraków and the Polish Geological Institute – National Research Institute in Warsaw. The objective of this paper is determination of the geological and geochemical conditions, 1-D and 2-D modelling of petroleum processes and petroleum systems and their influence on the prospectives of hydrocarbon exploration of the Miocene strata in the Polish and Ukrainian Carpathian Foredeep and its Palaeozoic–Mesozoic basement. In particular, a coherent model of geological structure of the area, based both on the synthesis of the earlier published data and on new results of palynological studies of the Upper Precambrian and Lower Palaeozoic, is given. New data on microfacies of the Upper Jurassic and Lower Cretaceous strata and on sedimentology, geochemistry and micropalaeontology of the Middle Miocene rocks are presented.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 211-220
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Origin of liquid hydrocarbons accumulated in the Miocene strata of the Polish Carpathian Foredeep and its Palaeozoic–Mesozoic basement
    Autorzy:
    Więcław, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/191540.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    oil origin
    biomarkers
    stable carbon isotopes
    oil-oil correlation
    Palaeozoic–Mesozoic basement
    Polish Carpathian Foredeep
    Opis:
    Petroleum geochemical data of 34 oils and condensates accumulated in the Carpathian Foredeep and its Mesozoic and Palaeozoic basement were used to assess their origin and genetic type. The analysed liquid hydrocarbons are characterized by variable densities and sulphur contents. No relationship between these parameters and the reservoir rock age has been found. Secondary processes of evaporative fractionation and biodegradation are evidenced for some oils. These processes proceeded most intensively on the oil from Góra Ropczycka-1K well. The oils from Opaka-1, Lubaczów-157 and Góra Ropczycka-1K wells were generated from organic matter deposited in the Upper Jurassic carbonates. The oil from the inflow in Załazie-2 well originated from the Cambrian strata, but also contains biomarkers characteristic of Miocene strata. The next family, genetically connected with the Silurian and Ordovician source rocks, consists of oils accumulated in the Lower Carboniferous carbonates in Nosówka deposit and in the Upper Jurassic in the inflow into Łękawica-1 well. The condensates collected from the Miocene (Łękawica-1, Pilzno-37, Tarnów-39 and -45 wells) and Upper Jurassic strata (Łąkta-27 and Tarnów-5 wells) were generated by organic matter dispersed in the Middle Jurassic or Lower Carboniferous clastic facies. The remaining oils, from Grobla-Pławowice, Wierzchosławice, Jastrząbka Stara, Partynia-Podborze, Dąbrowa Tarnowska, Brzezówka and Zagorzyce deposits, and the inflows into Tarnów-47 and Pilzno-12 wells were generated from kerogen enriched in organic sulphur usually dispersed in carbonate rocks. Such a type of sediments occurs in the Devonian and Lower Carboniferous strata. Also, these strata as well as the underlying Silurian rocks have sufficient maturity for generation of the discussed oils. The oleanane in the discussed oils most probably originates from kerogen of the Upper Cretaceous or Miocene strata, through which these oils migrated and eluted this biomarker.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 443-458
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microbial gas system and prospectives of hydrocarbon exploration in Miocene strata of the Polish and Ukrainian Carpathian Foredeep
    Autorzy:
    Kotarba, M. J.
    Peryt, T. M.
    Koltun, Y. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/191552.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    microbial gas
    thermogenic gas
    source rocks
    hydrocarbon potential
    organic geochemistry
    prospectives of hydrocarbon exploration
    autochthonous Miocene strata
    Bilche-Volytsia Unit
    Carpathian Foredeep
    SW Poland
    Western Ukraine
    Opis:
    Molecular composition of natural gases accumulated in autochthonous Miocene strata of the Polish and Ukrainian Carpathian Foredeep is dominated by methane, which usually constitutes over 98 vol%. Methane was generated by the carbon dioxide reduction pathway of microbial processes. Ethane was generated both during microbial and thermogenic processes ("oil window") and propane at the initial stage of the low-temperature thermogenic processes, and also by the microbial processes. The rhythmic and cyclic deposition of Miocene clays and sands as well as the vigorous generation of microbial methane caused that the gas produced in claystone beds was accumulated in the overlaying sandstones, and capped, in turn, by the succeeding claystones. Such generation and accumulation system of microbial gases gave rise to the formation of multi-horizontal gas fields. Analysis of the distribution of immature humic dispersed organic matter in the Upper Badenian and Lower Sarmatian sequences indicates that it is practically homogeneous. A migration range of microbial gases was insignificant and locations of their accumulations would depend only on the existence of proper type of traps (compactional anticlines situated above basement uplifts, sealed by the Carpathian Overthrust and/or by faults; stratigraphic pinching out and stratigraphic traps related to unconformities). Another situation is encountered in the south, beneath the Carpathian Overthrust. The thickness of the autochthonous Miocene strata in this area is more than 1,500 metres. Geochemical studies reveal that from a depth of 2,500 metres starts the process of low-temperature thermogenic hydrocarbon generation (“oil window”). At greater depths, more than 7,500 metres, within the autochthonous Lower Miocene basin only the high-temperature methane ("gas window") could be produced and accumulated.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 523-548
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A framework of ichthyofaunal ecostratigraphy of the Oligocene-Early Miocene strata of the Polish Outer Carpathian basin
    Podstawy ekostratygrafii ichtiofaunistycznej osadów oligocenu-wczesnego miocenu basenu zewnętrznych Karpat Polskich
    Autorzy:
    Kotlarczyk, J.
    Jerzmańska, A.
    Świdnicka, E.
    Wiszniowska, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/191627.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    fossil fish collection
    Teleostei
    deep-sea sediments
    lithostratigraphy
    biostratigraphy
    fish ecoassemblages
    models of changes
    ichthyofaunal zonation
    ecostratigraphy
    Oligocene
    Early Miocene
    Outer Carpathians
    Polska
    Opis:
    The paper presents the results of an analysis of ichthyofaunal variability throughout the section of the Menilite-Krosno Series (MKS) in the Outer Carpathians of Poland. The studied tanathocoenoses were formed at the bottom of a more than 2,000 m deep northern basin of the Tethys, being largely represented by the continental rise and bottoms of its narrow furrows, and - to a lesser degree - the continental slope and slopes of a submarine high. Lateral variability of statististically representative assemblages of tanathocoenoses hosted in thin, isochro- nous horizons is interpreted as a result of both local changes of ichthyocoenoses and the influence of post-mortem relocation of fishes that mainly dwelled the shelf and upper continental slope. Vertical variability, in turn, is considered as a resulting from changeable conditions of the ecological environment, the input and outflow of taxa whose evolution proceeded in the Indo-Pacific area, and the species extinction. Changeability of ichthyofauna within a ca. 16-m.y.-long interval made it possible to document and formally describe 9 zones and 4 subzones of ichthyofauna of ecostratigraphic character. These zones comprise index, representative and accompanying taxa that belong to different ecological groups. Conceptual models of the origin of ichthyofaunal assemblages of individual zones are presented. It is suggested that the origin of assemblage differentiation resulted from the appearance and disappearance of the oxygen minimum zone in the water column, global and local sea level changes, topography of the basin bottom, as well as final basin infilling by sediments of submarine fans. The described and preserved collection of fossil Carpathian fishes, housed at the Department of Palaeozoology of the University of Wrocław, requires further specialized palaeontological studies in order to reconstruct a more complete composition of the Oligocene-Early Miocene ichthyofauna.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2006, 76, No 1; 1-111
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diagenesis and reservoir properties of the Middle Miocene sandstones in the Polish segment of the Carpathian Foredeep
    Autorzy:
    Kozłowska, A.
    Kuberska, M.
    Maliszewska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/191666.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    sandstones
    diagenesis
    pore space
    reservoir properties
    Upper Badenian
    Sarmatian
    Carpathian Foredeep
    Opis:
    The Upper Badenian and Sarmatian sandstones from eight wells of the Carpathian Foredeep Basin have been studied. The following research methods were used: petrographic analysis with the use of polarizing microscope (staining analysis, cathodoluminescence studies – CL, porosity determinations, fluid inclusion ana- lysis), scanning electron microscope (SEM) investigations and energy dispersive spectrometer studies (EDS ISIS), X-ray diffraction analyses (XRD), isotopic analysis and petrophysical studies. The sandstones are very-fine to medium-grained subarkosic and sublithic arenites and wackes. The main components of the sandstone grain framework are quartz, feldspars (potassium feldspar and plagioclase), lithoclasts (fragments of carbonate rocks, clastic rocks, granitoids, volcanic rocks and quartz-mica schists) and micas (mainly muscovite). Bioclasts (mainly foraminifera), glauconite, ooids, organic matter and accesory minerals are subordinate. Pore spaces between the grains are filled by matrix and by cement (mostly Fe-calcite, quartz overgrowth, dolomite, siderite and kaolinite). The Middle Miocene sandstones show good and very good filtration abilities. Sandstones porosity very often exceeds 20% and permeability is above 100 mD. Primary intergranular porosity is considerably more frequent than secondary intragranular porosity (mainly dissolution of feldspar grains) and intercrystalline porosity (clays microporosity). Effects of the following diagenetic processes can be observed in the sandstones: compaction, cementation, dissolution, replacement and alteration. Primary porosity reduction in sandstones was predominantly caused by mechanical compaction by about 26% and cementation, mainly by calcite, by approximately 35% on the average. Some increase in porosity was caused by dissolution of detrital grains, mainly feldspars, and decay of the soft parts of organisms. Diagenetic and related reservoir properties evolution of the Middle Miocene sand- stones have been accomplished during eo- and mesodiagenesis.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 1; 87-103
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geometric analysis of steep-dipping dislocations within the granitoid core in the Polish part of the Tatra Mts
    Analiza geometryczna stromych dyslokacji w trzonie granitowym polskiej części Tatr Wysokich
    Autorzy:
    Jurewicz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/191417.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Tatra Mts.
    faults
    slickenside
    stress axes
    Middle Miocene extension
    Opis:
    The paper is focused on steep dipping dislocations within the granitoid core of the Polish part of the Tatra Mts. Two groups of dislocations were distinguished: single faults with flat and smooth planes, and mylonitic and cataclastic zones. With the help of TectonicsFP software, the reconstruction of the stress pattern, responsible for the formation of single faults, is presented basing on slip structures on their planes. The structures can be linked with the Middle Miocene (Sarmatian) 106-120° extension; in effect a set of normal oblique-slip, ~35/60N faults was formed with a horizontal sinistral component. The geometry of the system of mylonitic and cataclastic zones should be analysed after reversing them to positions prior to the post-Palaeogene rotational upheaval of the Tatra Mts. The orientation of some dislocation zones, described in literature, is revised.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2002, 72, No 1; 89-98
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    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:
    The nannofossil biostratigraphy of the youngest deposits of the Magura Nappe (East of the Szczawa river, Polish Flysch Carpathians)
    Biostratygrafia i warunki paleośrodowiskowe najmłodszych osadów płaszczowiny magurskiej na wschód od Skawy w oparciu o nannoplankton wapienny (polskie Karpaty fliszowe)
    Autorzy:
    Oszczypko-Clowes, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/191415.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    youngest deposits of the Magura Nappe
    calcareous nannofossil
    palaeoecology
    Middle Eocene-Lower Miocene
    West Carpathians
    Opis:
    The Magura Nappe is the largest and southernmost tectonic unit of the Western Outer Carpathians and differ in lithofacies development from the Middle and Marginal groups of units. The age studies of the youngest deposits of the Magura Nappe play an important role in understanding the tectogenesis of the Outer Carpathians. The aim of this work was to find the litho- and biostratigraphic correlation with the more external units. For this purpose the youngest deposits from selected sections of the Magura Nappe located east of the Skawa River, were chosen. For the lower limit of the youngest sediments, Middle/Upper Eocene variegated shales with Reticulophragmium amplectens Grzybowski were taken. The analysis of nannoplankton assemblages enable to establish the age of these deposits which varies from Middle Eocene (NP15) up to Upper Oligocene (NP25) and Lower Miocene (NN2). The Eocene/Oligocene boundary lies within the NP21 nanno-zone and was found in the Krynica Zone within the Globigerina Marls (Leluchów section), in the Rača Zone within Poprad Sandstone Mbr of the Magura Fm. and in the Siary Zone within supra-Magura (Budzów) Beds (Budzów section), Wątkowa Sandstone (Ropica and Małastów sections) and within Zembrzyce (sub-Magura) Beds (Folusz section). In the Rača and Krynica zones the youngest - Upper Oligocene deposits from the studied sections belong to the Malcov Fm., whereas in the Siary Zone they belong to the supra-Magura (Budzów) Beds. The age of the Malcov Fm. was determined as NP24 in Leluchów and as NP25 in the Nowy Sącz I borehole, whereas the Budzów Beds belong to zone NP24. The youngest deposits so far described from the Magura Nappe belong to the Zawada Fm. whose age was determined as NN2. In the Polish part of the Bystrica Zone deposits younger than NP18, have so far not been found. The analysis of autochtonous nannoplankton assemblages from the Magura Basin enable to follow the palaeoecological changes in the Magura Basin, both in regional and global sense, from Late Eocene through Oligocene. The global changes are the drop of the water temperature accompanied by the progressing eutrophication of the Magura Basin. Further events were also recorded in zone NP23. The assemblage of this zone was characterised by the presence of species which are believed to be indicative of brackish water and restricted to the Paratethys region.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2001, 71, No 3; 139-188
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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