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    Wyświetlanie 1-8 z 8
    Tytuł:
    Source rock geochemistry, petrography of reservoir horizons and origin of natural gas in the Devonian of the Lublin and Lviv basins (SE Poland and western Ukraine)
    Autorzy:
    Radkovets, N. Y.
    Kotarba, M. J.
    Wójcik, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060597.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Devonian
    Lublin Basin
    Lviv Basin
    Rock-Eval pyrolysis
    petrography
    isotope geochemistry
    Opis:
    The Rock-Eval source rock characteristics, mineral composition and type-porosity of reservoir horizons, and origin of natural gas in the Devonian of the Lublin and Lviv basins are described. In the Lower Devonian, the TOC content ranges from 0.01 to 1.82 wt.% in the Lublin Basin, and from 0.01 to 0.45 wt.% in the Lviv Basin. Transformation of organic matter varies from immature in the Lochkovian (Lviv Basin) to mature and overmature in the Emsian (Lublin Basin). The organic matter contains mainly Type-II kerogen, and underwent primary and/or secondary oxidation processes. In the Middle Devonian, the TOC content varies from 0.00 to 1.63 wt.% in the Lublin Basin, and from 0.02 to 0.64 to 2.35 wt.% in the Lviv Basin. The organic matter contains mainly Type-II kerogen and is immature in the Givetian of the Lviv Basin and mature in the Eifelian of the Lviv Basin and in the Eifelian and Givetian in the Lublin Basin. In the Upper Devonian, the TOC content is from 0.02 to 2.62 wt.% in the Lublin Basin, and from 0.04 to 1.43 wt.% in the Lviv Basin. Type-II kerogen dominates in both basins. Organic matter is mature in the Upper Devonian in the Lublin Basin and in the Famennian of the Lviv Basin and overmature in the Frasnian of the Lviv Basin. The reservoir horizons in the Devonian of the Lublin and Lviv basins are developed in clastic, carbonate and sulphate rocks. Terrigenous rocks form several separate horizons in the Lower and Middle Devonian of the Lviv Basin, and in the Upper Devonian (Famennian) of the Lublin Basin. Their filtration properties relate to intergranular porosity, while the fracture space has subordinate significance. Carbonate rocks form thick saturated horizons in the Givetian in the Lviv Basin, and in the Eifelian, Givetian and Frasnian in the Lublin Basin. Their filtration properties are produced by fracture porosity. Sulphates and carbonate-sulphate rocks with fracture and cavern porosity play a role as reservoir horizons in the Middle Devonian of the Lublin Basin. The natural gas collected from the Upper Devonian of the Lublin Basin was generated mainly during low-temperature thermogenic processes, from Ordovician–Silurian Type-II kerogen. The gas from the Middle Devonian reservoirs of the Lviv Basin was produced from Ordovician–Silurian Type-II kerogen and partly from the Middle and Upper Devonian mixed Type-III/II kerogen with maturity from about 0.9 to 1.4%. Carbon dioxide was formed by both thermogenic and microbial processes. Molecular nitrogen was generated mainly through thermal transformation of organic matter and also from destruction of NH4-rich illite of the clayey facies of the Ordovician–Silurian strata.
    Źródło:
    Geological Quarterly; 2017, 61, 3; 569--589
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Keuper magnetostratigraphy in the southern Mesozoic margin of the Holy Cross Mts. (southeastern edge of the German Basin)
    Autorzy:
    Wójcik, K.
    Kołbuk, D.
    Sobień, K.
    Rosowiecka, O.
    Roszkowska-Remin, J.
    Nawrocki, J.
    Szymkowiak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060586.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Triassic
    Keuper
    German Basin
    Holy Cross Mountains
    magnetostratigraphy
    rock magnetism
    Opis:
    Magnetostratigraphy of the Keuper succession in the southern Mesozoic margin of the Holy Cross Mountains is presented based on investigations of two sections of Brzeziny and Wolica. They cut an ~60 m thick succession of variegated siltstones and claystones, which overlies the Reed Sandstone (Stuttgart Formation). The succession has been correlated with the Patoka Member of the Grabowa Formation, defined in the Upper Silesia region as an equivalent of the Steinmergelkeuper (Arnstadt Formation). The primary Late Triassic magnetization was obtained from component B carried by fine-grained haematite. Twelve magnetic polarity zones, six of normal and six of reversed polarity, have been defined. The obtained polarity pattern corresponds to the Norian (E13–E16 Newark zones) according to the Long-Rhaetian option of the Late Triassic Magnetic Polarity Time Scale. The mean normal polarity characteristic direction (N = 24, D/I = 31/62, k = 28.24, α95 = 6.04) differs significantly from the reversed one (N = 18, D/I = 223/-25, k = 16.38, α95 = 8.65): the primary magnetic signal is partly overlapped by component A carried by magnetite of recent viscuous remanent magnetization. Some samples do contain also coarse-grained haematite that, however, does not form any clustered magnetization. The palaeopole position calculated from the transposed reversed and normal polarity directions of component B corresponds to the Late Triassic (Norian) segment of the reference Baltica/Europe Apparent Polar Wander Path.
    Źródło:
    Geological Quarterly; 2017, 61, 4; 946--961
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ropa naftowa i gaz ziemny w Polsce : obszary perspektywiczne oraz postępowanie przetargowe w 2018 r. (część I)
    Oil and gas in Poland : prospects and licensing rounds in 2018 in terms of hydrocarbon concessions (part I)
    Autorzy:
    Jagielski, G.
    Feldman-Olszewska, A.
    Janas, M.
    Kiersnowski, H.
    Krzyżak, E.
    Podhalańska, T.
    Roszkowska-Remin, J.
    Sobień, K.
    Wójcik, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075843.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    koncesje na poszukiwanie
    rozpoznawanie węglowodorów
    eksploatacja węglowodorów
    Ministerstwo Środowiska
    concessions for prospection
    exploration of hydrocarbons
    exploitation of hydrocarbons
    Polish Ministry of the Environment
    Opis:
    On the 28th of June 2017, the Polish Ministry of the Environment announced the boundaries of the tender areas selected for the third licensing round for concessions for prospection, exploration and exploitation of hydrocarbons. This round is going to be proceeded in the 4th Quarter of 2018 and 1st Quarter of 2019. The geologists of the Polish Geological Survey selected 15 tender areas (promising for discoveries of conventional and unconventional oil and gas fields) based on the geological data resources stored in the National Geological Archive, other published data, as well as the knowledge and experience of employees of the Polish Geological Institute - National Research Institute and the Polish Ministry of the Environment. All selected areas are located onshore. In this article we describe 10 tender areas located in the Gdańsk, Pomerania and Wielkopolska petroleum provinces. Other tender areas situated in the Carpathians (Błażowa, Proszowice W, Rudnik-Lipiny, Wetlina) and in the Lublin Petroleum Province (Ryki) will be discussed in the next publication. Three areas: Wejherowo, Bytów and Braniewo-Miłakowo are located in the northern Poland (Gdańsk Petroleum Province). The exploration targets of these areas are generally related to structural-lithological traps in the Middle Cambrian beds of the Baltic Basin, as well as to unconventional shale oil and gas in the Lower Paleozoic. Seven tender areas are situated in the northwestern Poland (Pomerania and Wielkopolska Petroleum Provinces). Three of them - Chodzież, Piła and Leszno are dedicated to conventional gas deposits in the Rotliegend sandstones and, in some cases, also oil deposits in the Zechstein/Main Dolomite. Excluding the Leszno tender area, chances for tight gas discoveries exist within the Rotliegend sandstones. The exploration target of the Konin tender area is related to possible conventional fields in the Jurassic and Lower Cretaceous beds. In the Pomerania region the exploration target is generally related to conventional hydrocarbon deposits in the Devonian, Carboniferous and Permian (Rotliegend and Zechstein/Main Dolomite). Three tender areas are situated within the region of: Sierpowo, Orle and Chełmno. As a rule, a concession is granted for a period of 10 to 30 years and is divided into 2 phases: 1) prospecting and exploration phase (which lasts from 4 to 5 years and can be extended to another 2-year period), 2) production phase. Every entity interested in obtaining a concession needs to undergo the qualification procedure. We believe that this publication will contribute to better understanding of the offered tender areas and encourage activity in the Polish oil and gas sector.
    Źródło:
    Przegląd Geologiczny; 2018, 66, 12; 724--740
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kartografia geologiczna Tatr
    The geological cartography of the Tatra Mts
    Autorzy:
    Piotrowska, K.
    Wójcik, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074582.pdf
    Data publikacji:
    2008
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    mapy geologiczne
    Tatry
    geological maps
    Tatra Mts.
    Opis:
    The area in question represents northern part of the centralWest Carpathians and the boundary zone of Poland and Slovakia (before 1918 the boundary of Galicia and Upper Hungary). From the end of 18th century the authors of geological maps of this area were mostly Austro-Hungarian geologists, but also specialists from other countries. The first cartographic documents refer to the occurrence of mineral raw materials (Hacquet, 1796). A little later some elements of stratigraphy and tectonics were also considered (Staszic, 1815). Zejszner (1844) was the first to pay attention to biostratigraphy and this problem was continued by his followers. In the "Geological Atlas of Galicia" (1885-1914) the authors took into account tectogenesis, at first following the theory of contraction (Uhlig, 1897, 1899) and, subsequently, the concept of nappes (e.g. Lugeon, 1902, 1903; Uhlig, 1907; Limanowski, 1911; Rabowski & Goetel, 1925; Goetel &. Sokołowski, 1930; Guzik, 1939). Until the beginning of the 21st century, the number of cartographic works (maps and cross-sections) printed separately or as attachments and inserts within texts, reached more than 1000 positions. Particularly the cartography of the 20th century, including the map of the Tatra Mts. 1 : 10 000, represents very valuable basic material for the recently prepared "Detailed Geological Map of the Tatra Mts. 1 : 10 000".
    Źródło:
    Przegląd Geologiczny; 2008, 56, 12; 1069-1078
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variability of engineering geological parameters in flood facies sediments
    Autorzy:
    Kraużlis, K.
    Laskowski, K.
    Wójcik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059627.pdf
    Data publikacji:
    2003
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    mud types
    lithological succession
    geological-engineering parameters
    Opis:
    Flood-deposited, muds are characterised by considerable variability of their lithological characters. This variability reflects the development of the river forming the terrace, the geological setting of the drainage basin and the morphology of the flood plain. The lithological variability of the muds causes great vertical and lateral variability in the engineering geological parameters. Therefore all calculations based on mean values obtained from laboratory analyses are prove to error. The most reliable values of parameters are obtained from fieldwork "in situ".
    Źródło:
    Geological Quarterly; 2003, 47, 1; 63-68
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany mikrostrukturalne past gruntowych pod wpływem ciśnienia ssania
    Microstructural changes in remoulded specimens due to suction pressure
    Autorzy:
    Wójcik, E.
    Trzciński, J.
    Łądkiewicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075002.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    microstructure
    pore space
    Neogene clay
    suction pressure
    mikrostruktura
    przestrzeń porowa
    iły neogeńskie
    ciśnienie ssania
    Opis:
    This paper presents an issue of microstructural changes in clay soils during the water loss due to increase of suction pressure. The change of microstructure affects the geological engineering properties of soils causes problems with the foundation of buildings. The volumetric changes of cohesive soils, containing significant amounts of clay minerals from the smectite group, are caused by a variable water content in soil. The phenomenon of the moisture change significantly alters the geological engineering properties of these soils as a result of shrinking and swelling. This paper aims at presenting the microstructural changes in remoulded specimens of Neogene clays caused by loss of moisture due to suction pressure. The scientific examination involved quantitative analyses of the microstructure using scanning electron microscopy (SEM) to study pore space details of remoulded specimens. Tested samples from selected levels of the Neogene clays (Poznan Series) were collected from the Warsaw-Stegny area. Samples were taken from a research polygon for these clay soils. The basic geological engineering properties of clay soils and remoulded specimens have been examined after being prepared according to strictly defined procedures. Through successive stages of the suction pressure (from 50 to 1600 kPa), the samples underwent the process of loss of moisture. Application of a novel method of sample preparation procedure for remoulded specimens allowed examining structurally homogeneous soils and obtaining results without an effect of material anisotropy. The qualitative and quantitative analysis of soil microstructures were performed using SEM and STIMAN software for quantitative images processing. The analysis allowed determination of the number of geometric and morphometric parameters of the microstructure with high accuracy. Based on this study, significant qualitative and quantitative changes in loss of moisture due to suction pressure in the process of remoulded specimens were noted along with changes in the microstructure and pore space of clay soils. The obtained results showed the effect of successive stages of "closing" of the structure of cohesive soils. Microstructural changes have a significant influence on the values of clay soil properties during the shrinkage and swelling process, which are caused by changes in the water content.
    Źródło:
    Przegląd Geologiczny; 2013, 61, 1; 74--82
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie numerycznych obliczeń stateczności zboczy dla oceny potencjalnych stref przemieszczeń zwietrzelin i koluwiów rozwiniętych na podłożu fliszowym
    Application of slope stability numerical calculation for evaluation of potential displacement zones in weathered and colluvial soils on the flysh base
    Autorzy:
    Dobak, P.
    Gawriuczenkow, I.
    Kaczmarek, Ł. D.
    Kiełbasiński, K.
    Wójcik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075539.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    zbocze
    stateczność
    modelowanie numeryczne
    materiałowy model multilaminate
    zwietrzelina
    development of slope
    stability
    numerical modeling
    multilaminate material model
    weathering
    Opis:
    This study concerns the modeling potential of slopes development with use of numerical stability calculations. Boundary conditions of performed numerical simulations are according to morphological and geological engineering conditions of the flysch slope shaped by weathering and surface mass movements. The multilaminate material model was used in order to imitate shale spatial variation in weathering zones. Furthermore, X-ray computed microtomography technique enabled for visualization of varied condition of shear surface extortion, which cause physical and strength parameters diversity. Calculation outputs show that geometry and location of deformation zones are affected by a model input strength parameter. The presented results confirm utility of numerical modeling as important aspect in the investigation and verification of spatiotemporal slope development cycle.
    Źródło:
    Przegląd Geologiczny; 2016, 64, 9; 683--693
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Glacitektonika wybranych obszarów Polski
    Glaciotectonics of the selected regions of Poland
    Autorzy:
    Ber, A.
    Dobracki, R.
    Lisicki, S.
    Morawski, W.
    Badura, J.
    Krzyszkowski, D.
    Przybylski, B.
    Urbański, K.
    Kasprzak, L.
    Ruszczyńska-Szenajch, H.
    Wysota, W.
    Turkowska, K.
    Gardziel, Z.
    Harasimiuk, M.
    Lewandowski, J
    Wójcik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063249.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    glacitektonika
    wybrane obszary
    Polska
    Polska
    glaciotectonics
    selected regions
    Opis:
    Niniejsze zbiorowe opracowanie powstało na podstawie szczegółowych (SMGP w skali 1: 50 000) i przeglądowych materiałów kartograficznych, publikowanych i archiwalnych opracowań autorskich oraz na podstawie Gacitektonicznej mapy Polski w skali 1:1 000 000, i stanowi swoisty, regionalny komentarz tekstowy do tej mapy. W podziale Polski na obszary: północno-zachodni, północny, północno-wschodni, zachodni i środkowozachodni, środkowy i środkowowschodni, południowo-wschodni oraz południowy przedstawiono opisy zaburzonych glacitektonicznie form i osadów powierzchniowych i kopalnych. Występowanie zaburzeń glacitektonicznych w Polsce związane jest przede wszystkim z zasięgami młodszych zlodowaceń i z miąższością ulegającego deformacjom podłoża. Formy i osady były zaburzane albo przez pionowe i poziome naciski aktywnego (transgredującego) lądolodu, albo przez nacisk pionowy na podłoże stagnujących mas lodowych. Prace nad uzupełnianiem zawartych w opracowaniu opisów wybranych obszarów Polski oraz treści Glacitektonicznej mapy Polski w skali 1:1 000 000 będą kontynuowane zarówno przez wnoszenie nowych danych, jak też przez rozszerzanie i uszczegółowianie legendy o nowe wydzielenia i oznaczenia wiekowe.
    The presented complete edition was prepared on the base results of the detailed (Detailed Geological Map of Poland in scale 1:50 000) and review geological mapping, published and archival data, as well as an explanations and symbols elaborated for Glaciotectonic Map of Poland in scale 1:1 000 000. Therefore this elaboration, presenting the regional description of the glaciotectonic features within selected regions of Poland, compose specific textural explanations for this map. Within the territory of Poland subdivided on following regions: North-Western, North, North-Eastern, Western, Middle-Western, Middle, Middle-Eastern, Southern, South-Eastern, glaciotectonicly disturbed landforms and sediments either expressed in recent relief or buried (stated in borings or in exposures) were described. Distribution of glaciotectonic features over the territory of Poland is related primarily to the presence younger glaciations and thickneses of the deformable substratum. Generally, the landforms and sediments were deformed by active ice sheets through the horizontal and vertical thrusts of the ice masses, as well as by vertical stress of the stagnant ice masses. The supplementary works under in details description of the glaciotectonic features in particular regions of Poland will be continued, as well as completed the contents of the Glaciotectonic Map of Poland in scale 1:1 000 000.
    Źródło:
    Biuletyn Państwowego Instytutu Geologicznego; 2004, 408; 73-125
    0867-6143
    Pojawia się w:
    Biuletyn Państwowego Instytutu Geologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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