Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Więclaw, D." wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-14 z 14
    Tytuł:
    Origin of oils accumulated in the Middle Cambrian reservoirs of the Polish part of the Baltic region
    Autorzy:
    Kowalski, A.
    Więcław, D.
    Kotarba, M. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059062.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Baltic Region
    Lower Paleozoic
    oil origin
    biomarkers
    stable carbon isotopes
    oil-oil correlation
    Opis:
    We have examined 21 samples of crude oils accumulated in the Middle Cambrian sandstone reservoirs from the Polish part of the Baltic region. All the crude oils have similar parameters and indices, which suggests generation from the same source rock. Evaporative fractionation and biodegradation processes were detected in oil collected from the B4-N1/01 borehole. All crude oils have high gravities and low-sulphur contents, less than 0.3 wt.%, which suggests that their source rock contained low-sulphur kerogen deposited in a clastic environment. A low asphaltenes content (below 0.3 wt.%) and high saturate/aromatic hydrocarbon ratios indicate long migration distances or high thermal maturities. The longest migration distance was probably attained by oils from the arnowiec and B16 deposits. The biomarker data indicate an algal origin for the source organic matter deposited under conditions of clastic sedimentation. The stable carbon isotope data support this observation. The maturity of the oils analysed varies from ca. 0.75 to ca. 1.05% on the vitrinite reflectance scale. Unlike the B6, B16, Dbki and arnowiec accumulations, oils from the B3 and B4 accumulations reveal the lowest maturity.
    Źródło:
    Geological Quarterly; 2010, 54, 2; 205-216
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka macierzystości wybranych utworów fliszowych w przygranicznej strefie polskich Karpat Zewnętrznych
    Source rock characteristic of the selected flysch deposits in the transfrontier area of the Polish Outer Carpathians
    Autorzy:
    Kosakowski, P.
    Więcław, D.
    Kotarba, M. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/183729.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    geochemia naftowa
    potencjał węglowodorowy
    Karpaty zewnętrzne
    warstwy menilitowe
    kreda górna
    kreda dolna
    petroleum geochemistry
    hydrocarbon potential
    Outer Carpathians
    Menilite Beds
    Upper Cretaceous
    Lower Cretaceous
    Opis:
    Charakterystykę geochemiczną poziomów potencjalnie macierzystych utworów fliszowych jednostek alochtonicznych wschodniej części polskich Karpat Zewnętrznych wykonano dla dolnokredowych warstw wierzowskich, lgockich i spaskich, górnokredowych warstw istebniańskich i inoceramowych oraz oligoceńskich warstw menilitowych. W analizie wykorzystano wyniki badań geochemicznych 875 próbek skał z profili 11 odwiertów i 48 odsłonięć w polskiej i przygranicznej ukraińskiej części Karpat Zewnętrznych. Wyniki badań geochemicznych potwierdzają, że warstwy menilitowe są najlepszymi skałami macierzystymi. Ropotwórczy kerogen II typu jest generalnie niedojrzały lub dojrzały w fazie wczesnej "okna ropnego". Parametry kinetyczne kerogenu warstw menilitowych są zbliżone w jednostkach śląskiej i skolskiej oraz wyraźnie niższe w jednostce borysławsko-pokuckiej. Pozostałe analizowane kredowe wydzielenia litostratygraficzne lokalnie spełniają ilościowe kryterium macierzystości i mogą uzupełniać bilans węglowodorowy utworów fliszowych Karpat.
    Potential source rock horizons of the flysch cover were geochemically characterized in the eastern border area of the Polish flysch Carpathians: Lower Cretaceous Verovice, Lgota and Spas Beds, Upper Cretaceous Istebna and Inoceramian Beds as well as Oligocene Menilite Beds. The results of geochemical analyses of 875 rock samples collected from 11 boreholes and 48 outcrops in the Polish Outer Carpathians as well as from the adjacent Ukrainian were analyzed. The results indicate that Menilite Beds are the best source rocks of the Carpathian flysch cover in all analyzed tectonic units. The oil-prone Type II kerogen, deposited in marine environment of regular salinity, was proved to be usually immature or mature at an early stage of "oil window". Kinetic parameters of organic matter dispersed in the Menilite Beds, calculated based on organic sulphur content, are similar for the Silesian and Skole units and significantly lower in the Boryslav-Pokuttya Unit. The remaining lithostratigraphic divisions: Verovice, Lgota, Spas, Istebna and Inoceramian Beds, locally meet the source-rock requirements and can supplement the hydrocarbon balance of the Carpathians.
    Źródło:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 4/1; 155-190
    0138-0974
    Pojawia się w:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of hydrous-pyrolysis kinetic parameters for oil generation from Baltic Cambrian and Tremadocian source rocks with Type-II kerogen
    Autorzy:
    Więcław, D.
    Kotarba, M. J.
    Lewan, M. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059067.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Baltic Region
    Cambrian
    Ordovician
    hydrous pyrolysis
    organic sulfur
    kinetic parameters
    type II kerogen
    Opis:
    Determining kinetic parameters for oil generation from a source rock by hydrous pyrolysis requires a considerable amount of sample (kilograms) and laboratory time (several weeks). In an effort to circumvent these requirements, hydrous-pyrolysis (HP) kinetic parameters for oil generation from Upper Cambrian and Tremadocian source rocks of the Baltic region are estimated by two methods: (1) organic sulfur content in kerogen and (2) HP experiments conducted at 330 and 355°C for 72 h. Estimates for the Upper Cambrian source rocks based on organic sulfur contents gave activation energies from 47 to 56 kcal/mole and frequency factors from 1.156 ' 1025>/sup> to 1.078 ' 1028 m.y.-1 . Tremadocian source rocks based on organic sulfur content gave estimated activation energies from 60 to 62 kcal/mole and frequency factors from 1.790 ' 1029 to 1.104 ' 1030 m.y.-1 . The estimates for the Tremadocian source rocks were less affected by thermal maturation because their low kerogen S/(S + C) mole fractions (< 0.018) remained essentially constant. Conversely, the higher kerogen S/(S + C) mole fractions (>>gt; 0.018) of the Upper Cambrian source rocks decreased with thermal maturation and resulted in overestimation of the kinetic parameters. The second method was designed to estimate kinetic parameters based on two HP experiments. The assumption that the maximum yield in calculating the rate constant at 330°C (k330°C could be determined by a second hydrous pyrolysis experiment at 355°C for 72 h proved not to be valid. Instead, a previously established relationship between Rock-Eval hydrogen index and maximum HP yield for Type-II kerogen was used to calculate k330°C from oil yields generated by the HP experiment at 330°C for 72 h assuming a first-order reaction. HP kinetic parameters were determined from relationships between k330°C and the HP kinetic parameters previously reported. These estimated HP kinetic parameters were in agreement with those obtained by the first method for immature samples, but underestimated the kinetic parameters for samples at higher thermal maturities. Applying these estimated HP kinetic parameters to geological heating rates of 1 and 10°C/m.y. indicated that the Upper Cambrian source rocks would generate oil notably earlier than the overlying Tremadocian source rocks. This was confirmed in part by available data from two neighboring boreholes in the Polish sector of the Baltic.
    Źródło:
    Geological Quarterly; 2010, 54, 2; 217-226
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat and hydrocarbon potential of the Mesozoic strata in the Kraków–Rzeszów area (SE Poland)
    Autorzy:
    Kosakowski, P.
    Więcław, D.
    Kotarba, M. J.
    Kowalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058966.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Carpathian Foredeep substratum
    Mesozoic strata
    Middle Jurassic source rock
    petroleum geochemistry
    quality of source rocks
    Opis:
    The Mesozoic strata in the southeastern Poland were geochemically characterized to determine their hydrocarbon potential on the basis of 483 core samples from 36 boreholes. The Lower and Middle Triassic, Middle and Upper Jurassic, and Lower and Upper Cretaceous turned out to be highly variable. Middle Jurassic rocks represent the highest geochemical quality. Their total organic carbon (TOC) contents range between 0.0 and 17.0 wt.%, with a median of 0.89 wt.%. The highest TOC was observed in the rocks of the Tarnawa 1 borehole. In the remaining boreholes analysed the organic carbon contents were much lower and usually did not exceed 1 wt.%. Gas-prone Type-III kerogen with an admixture of Type-II kerogen is present in the study area. The lowest TOC values were observed in the Cretaceous rocks, where median values were 0.05 wt.% and 0.04 wt.% for Upper Cretaceous and Lower Cretaceous strata respectively. Low TOC contents were also observed in the Lower Triassic and Upper Jurassic strata. Accordingly, those horizons could not be regarded as effective source rocks. The petroleum potential of these stratigraphic horizons is additionally significantly reduced by low maturity, below the threshold for the generation of hydrocarbons. The Mesozoic organic matter was found to be generally immature, i.e. below 0.5% of vitrinite reflectance.
    Źródło:
    Geological Quarterly; 2012, 56, 1; 139-152
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potencjał węglowodorowy skał macierzystych i geneza gazu ziemnego akumulowanego w utworach miocenu zapadliska przedkarpackiego w strefie Rzeszowa
    Hydrocarbon potential of source rocks and origin of natural gases accumulated in Miocene strata of the Carpathian Foredeep in Rzeszów area
    Autorzy:
    Kotarba, M. J.
    Więcław, D.
    Kosakowski, P.
    Kowalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074398.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    zapadlisko przedkarpackie
    miocen autochtoniczny
    kopalna substancja organiczna
    geochemia
    potencjał węglowodorowy
    gaz ziemny
    izotopy trwałe
    Carpathian Foredeep
    autochthonous Miocene
    organic matter
    hydrocarbon potential
    methane
    gas origin
    microbial processes
    organic geochemistry
    stable isotopes
    Opis:
    In the autochthonous Upper Badenian and Lower Sarmatian strata of the Carpathian Foredeep in the Rzeszów area the total organic carbon (TOC) contents vary from 0.02 to 1.26 wt. %(average 0.64 wt. %). Geochemical studies on the dispersed organic matter demonstrated the presence of gas-prone type III (humic) kerogen with small admixtures of algal type II kerogen. At depths less than 2,500 metres the organic matter is immature, thus microbial processes predominated. Methane concentration in natural gases accumulated within Miocene strata usually exceeded 94 vol. %and was generated by microbial reduction of carbon dioxide. Microbial methane was generated mainly during deposition of autochthonous Miocene sediments, but it is possible that this process continues today on a small scale. Higher gaseous hydrocarbons (mainly ethane and propane), which are usually minor constituents (concentrations less than 0.4 vol. %), were generated during diagenetic processes and at the initial stage of the low-temperature thermogenic processes. The slight changes in the geochemical indices of dispersed organic matter and isotope ratios of natural gases with depth are evidence of the homogeneity of deposition of humic organic matter in shallow marine basin during the Late Badenian and the Early Sarmatian and the fact that similar gas generation conditions can be found in the Miocene sequence. Generation and accumulation of microbial methane and the formation and charging multiple stacked reservoirs within the autochthonous Miocene strata, e.g., Palikówka, Jasionka, Stobierna and Terliczka deposits, was facilitated by rhythmic and cyclic deposition of clays and sands and their very high sedimentation rate.
    Źródło:
    Przegląd Geologiczny; 2005, 53, 1; 67--76
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat and hydrocarbon potential of the Palaeozoic source rocks in the Kraków–Rzeszów area (SE Poland)
    Autorzy:
    Więcław, D.
    Kotarba, M. J.
    Kowalski, A.
    Kosakowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/191373.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    source rock
    hydrocarbon potential
    Rock-Eval pyrolysis
    biomarkers
    stable carbon isotopes
    Palaeozoic basement
    Małopolska Block
    Polish Carpathian Foredeep
    Opis:
    The quantity, genetic type and maturity of organic matter dispersed in Ordovician, Silurian, Devonian and Lower Carboniferous strata in the basement of the Carpathian Foredeep between Kraków and Rzeszów were determined based on the results of organic geochemical analyses of 600 rock samples collected from 44 wells. The best source rocks were found in the Silurian strata where the total organic carbon (TOC) content is up to 6.6 wt% and the median value equals ca. 1.5 wt%. The median values of the initial organic carbon contents in individual wells vary from 1.2 to 3.5 wt%. The Ordovician, Lower Devonian and clastic facies of the Lower Carboniferous strata can be considered as an additional source of hydrocarbons with the median TOC values of 0.27, 0.56 and 0.53 wt%, respectively. The Middle and Upper Devonian strata as well as the carbonate facies of the Lower Carboniferous strata have much lower quantities of organic carbon, although in these strata levels with elevated TOC contents were observed. In the Lower Palaeozoic and Lower Devonian strata, the oil-prone, low-sulphur Type II kerogen is present, whereas in the younger divisions presence of the gas-prone Type III kerogen is visible. In the Lower Carboniferous clastics gas-prone kerogen dominates. The Silurian and clastic facies of the Lower Carboniferous strata have been deposited in the normal marine conditions, whereas the Ordovician, Devonian and carbonate facies of the Lower Carboniferous strata usually experienced reducing conditions. The source rocks are mostly at the initial and middle phase of the low-temperature thermogenic processes. Locally, immature (in the Lower Carboniferous carbonates in the vicinity of Łąkta gas-condensate field) or late-mature (in the Middle and Upper Devonian strata in the area of Grobla–Pławowice oil field) source rocks were observed.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 375-394
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Origin and maturity of oils in the Ukrainian Carpathians and their Mesozoic basement
    Autorzy:
    Więcław, D.
    Kotarba, M. J.
    Kowalski, A.
    Koltun, Y. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058970.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Ukrainian Carpathians
    Carpathian Foredeep
    biomarkers
    stable carbon isotopes
    Opis:
    Geochemical characteristics of 25 oils collected from Skiba Unit of the Outer Carpathians, Boryslav-Pokuttya Unit of the Carpathian Foredeep and their Mesozoic basement in the western Ukraine are presented in the paper. The first recognised oil family consists of almost all oils accumulated in the flysch sequence of the Outer Carpathians and the Carpathian Foredeep which have very similar geochemical characteristics. These oils were generated from Type II or II/III kerogen deposited in clastic sediments. They are low-sulphur and migrated short distances. Slight biodegradation processes are visible only in oils accumulated in shallow deposits in the Skiba Unit. Their source rocks are the Oligocene Menilite Shales from the Boryslav-Pokuttya Unit. Oils from the Kokhanivka and Orkhovychi deposits (the Mesozoic basement of the Carpathian Foredeep) constitute the second family. These oils are extremely heavy, high-sulphur and were generated from high-sulphur Type IIS kerogen deposited in the carbonate environment. The most probable source rocks for these oils are the Upper Jurassic strata. Oil collected from the Vola Blazhivska deposit (the Boryslav-Pokuttya Unit) shows intermediate parameters between the oil families described above. It is characterized by the presence of oleanane and high sulphur content. It was generated from the Menilite Shales containing high-sulphur kerogen. All oils were generated at an early stage or the peak of oil window.
    Źródło:
    Geological Quarterly; 2012, 56, 1; 158-168
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic correlation of source rocks and natural gas in the Polish Outer Carpathians and Paleozoic–Mesozoic basement east of Kraków (southern Poland)
    Autorzy:
    Kotarba, M. J.
    Więcław, D.
    Bilkiewicz, E.
    Dziadzio, P.
    Kowalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060588.pdf
    Data publikacji:
    2017
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Polish Outer Carpathians
    Paleozoic–Mesozoic basement
    source rock potential
    natural gas
    biomarkers
    stable carbon
    hydrogen isotopes
    nitrogen isotopes
    Opis:
    Natural gas-source rock correlations in the Polish Outer Carpathians and Paleozoic–Mesozoic basement in the Kraków–Brzesko–Nowy Sącz area (southern Poland) have been established. In the Dukla and Sub-Silesian units, mixed kerogen Type-II/III or III/II occurs. The organic matter is immature or low-mature. The Oligocene Menilite beds of the Silesian Unit are rich in TOC and contain gas-prone Type III kerogen of low maturity. In the Paleozoic–Mesozoic basement, the TOC content and residual hydrocarbon potential vary in the Middle and Upper Devonian strata, Mississippian carbonate and clastic facies and Middle Jurassic strata. The Paleozoic strata are capable of thermogenic hydrocarbon generation, while organic matter in the Middle Jurassic rocks is generally immature. Gaseous hydrocarbons accumulated both in the Silesian and Dukla units of the Polish Outer Carpathians and in the Mesozoic basement are genetically related to thermogenic and microbial processes. The Outer Carpathian natural gas was generated mainly from the Type-II/III kerogen of the Oligocene Menilite beds. The thermogenic gases from the Mesozoic basement were generated from Devonian and Mississippian (carbonate) Type-II and mixed II/III kerogens and probably from Silurian/Ordovician Type-II kerogen and Middle Jurassic Type-III/II kerogen occurring at more than 7 km depth. Microbial methane migrated into the Outer Carpathian flysch succession from the Miocene strata of the Carpathian Foredeep.
    Źródło:
    Geological Quarterly; 2017, 61, 4; 795--824
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat and hydrocarbon potential of the lower Paleozoic source rocks in the Polish part of the Baltic region
    Autorzy:
    Kowalski, A.
    Więcław, D.
    Grotek, I.
    Kotarba, M. J.
    Kosakowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059076.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Baltic Region
    northern Poland
    source rock
    hydrocarbon potential
    Lower Paleozoic
    Opis:
    The quantity, genetic type and maturity of organic matter dispersed in the Lower Cambrian to the uppermost part of the Silurian (Pridoli) sequence of the Polish part of the Baltic region was determined based on the results of geochemical analyses of a total of 1377 rock samples collected from 38 onshore and offshore boreholes. The best source rocks were found in the Upper Cambrian-Tremadocian succession where present and initial total organic carbon (TOC) contents are up to ca. 18 and 20 wt.%, respectively. Caradocian (Ordovician) strata can be considered as an additional source of hydrocarbons. In the individual boreholes median present and initial TOC contents vary from 0.5 to 3.3 wt.% and from 1 to 6 wt.%, respectively. The Llandovery (Silurian) strata reveal moderate and locally high hydrocarbon potential of the source rocks. The present TOC content reaches locally 10 wt.% (usually 1-2 wt.%). Another source of hydrocarbons can be clayey intercalations within the Middle Cambrian strata. Their organic matter content rarely exceeds 1 wt.%, being often a result of advanced organic matter transformation. In all lower Paleozoic strata investigated from the Polish part of the Baltic region oil-prone, low-sulphur Type-II kerogen occurs, deposited in anoxic or sub-oxic conditions. The maturity of all source rocks changes from the initial phase of the low-temperature thermogenic processes in the northeastern part to the overmature stage in the southwestern part of the study area.
    Źródło:
    Geological Quarterly; 2010, 54, 2; 159-182
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biological markers and stable carbon isotope studies of bitumen impregnating Quaternary sediments at Starunia palaeontological site and vicinity (Carpathian region, Ukraine)
    Autorzy:
    Kotarba, M. J.
    Fabiańska, M.
    Więcław, D.
    Kowalski, A.
    Zych, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/191516.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    biomarkers
    stable carbon isotopes
    bitumen content
    oil origin
    woolly rhinoceros
    Starunia palaeontological site
    Carpathian region
    Ukraine
    Opis:
    Biological markers and stable carbon isotopic compositions of bitumen impregnating the Pleistocene and Holocene sediments around the Starunia palaeontological site (Carpathian region, Ukraine) near discovered remnants of a mammoth and three woolly rhinoceroses, and one almost completely preserved rhinoceros carcass found in 1907 and 1929, were investigated. The research was carried out to assess genetic connections between the bitumen and oils from the nearby deep accumulations of the Boryslav-Pokuttya and Skyba units of the Carpathians. Another aim of these geochemical studies was to reveal the secondary geochemical processes (oxidation and biodegradation) influencing the bitumen, and to determine which environments have been favourable or unfavourable for the preservation of large Pleistocene vertebrates. Bitumen included within the near-surface rocks are not genetically connected with residual organic matter present in Quaternary sediments. Geochemical features, such as distributions of pentacyclic triterpanes and steranes, biomarker parameters and isotope composition indicate that all bitumens originate from oil-prone, Type II kerogen with insignificant admixture of terrestrial Type III kerogen in the middle stage of catagenesis. The oils occurring in deep accumulations in the Starunia area were the sole source of bitumen found in the near-surface sediments. Input of immature organic matter to bitumen from Pleistocene and Holocene sediments has not been found. The main factors differentiating the bitumen were: biodegradation, water washing and/or weathering. Additional influence of transport of bitumen by brine was found. The most favourable conditions for preservation of large, extinct mammals within the Pleistocene muds exist in the vicinity of Nos 22 and 23 boreholes, where bitumen is best preserved. The worst conditions were found in the vicinity of Nos 1, 4, 4' and 15 boreholes. Intensification of biodegradation and weathering effects were followed by intensive, chaotic changes of the remnants of large Pleistocene mammals.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2009, 79, No 3; 463-480
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of hydrocarbon potential of the autochthonous Miocene strata in the NW part of the Ukrainian Carpathian Foredeep
    Autorzy:
    Kotarba, M. J.
    Więcław, D.
    Kosakowski, P.
    Koltun, Y. V.
    Kowalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/191375.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    source rocks
    hydrocarbon potential
    organic geochemistry
    Miocene
    Bilche-Volytsia Unit
    Ukrainian Carpathian Foredeep
    Opis:
    The quantity, genetic type, maturity and hydrocarbon potential of dispersed organic matter were determined for the complete sequence of the autochthonous Miocene ranging from the Lower Badenian Sandy-Calcareous Series to the Lower Sarmatian Upper Dashava Formation of the Bilche-Volytsia Unit. Geochemical analyses were conducted on 78 core samples collected from 11 wells in the Ukrainian Carpathian Foredeep between the Ukrainian-Polish state border and the Stryi River. The most favourable source-rock parameters characterize the Upper Badenian Kosiv Formation where the highest TOC contents, from 0.44 to 2.01 wt% (median 0.76 wt%), were found. Only slightly lower values were obtained for the Lower and the Upper Dashava formations – from 0.01 to 1.45 wt% (median 0.72 wt%) and from 0.62 to 0.77 wt% (median 0.71 wt%), respectively. In the Lower Badenian Sandy-Calcareous Series, the Lower Badenian Baraniv beds, and the Upper Badenian Tyras Formation, the TOC content is lower and varies from 0.00 to 0.77 wt%. Immature type III (terrestrial) kerogen dominates the analysed sections of the Kosiv and Dashava formations. Marine organic matter was detected sporadically, and only in the Upper Badenian Kosiv Formation in the vicinity of Kokhanivka, and in the Upper Badenian Kosiv and Tyras formations.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 395-407
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The red-bed-type precious metal deposit in the Sieroszowice-Polkowice copper mining district, SW Poland
    Autorzy:
    Pieczonka, J.
    Piestrzyński, A.
    Mucha, J.
    Głuszek, A.
    Kotarba, M. J.
    Więcław, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/191385.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Kupferschiefer - Poland
    precious metals
    geology
    petrology
    Opis:
    Since 50 years copper-silver ores have been extracted from the Lubin-Sieroszowice deposit located on the border between the Lower and Upper Permian sediments. It is a world class stratoidal type deposit. In the whole world the Kupferschiefer unit is recognized as a black, clayey organic-rich shale. The Cu-Ag deposit is a part of the Fore-Sudetic Monocline, and is located on the border of the Lower and Upper Permian strata The monocline includes three rock complexes. The first is the basement, which comprises Proterozoic crystalline rocks and Carboniferous sediments. It is overlain by monoclinally dipping Permian and Triassic sedimentary rocks. In this work, study on ore mineralisation of the red variety of the Kupferschiefer are presented. Oxidation of the Kupferschiefer as an epigenetic phenomena.The oxidized zones reveal low concentrations of simple copper sulphides with the dominating chalcopyrite accompanied by bornite, pyrite, covellite, galena, clausthalite, chalcocite, digenite, spioncopite, geerite, native Au, electrum, tetraauricupride, naumannite, native Pb, Pd-arsenides and minerals of mixed composition: Au-Ag-Pb-Bi-Se-Te, Au-Ag-Pb-Te, Bi-Cu, Bi-Pd and Pd-As-O. Most important are natural alloys of precious metals, Pd-arsenides and oxidized phases (mostly Pd ones), which strongly influence the effectiveness of froth flotation. Precious metals form several parageneses: i - clausthalite - native Pb - electrum - AuPb2, ii - Pt-native Au - native Pd - sobolevskite - native Pb, iii - native Au - haematite - bornite - minerals of covellite-chalcocite group, iiii - electrum - tetraauricupride - chalcocite, iiiii - electrum - Pd-arsenides - tellurides - selenides - BiPd and CuBi natural alloys - Pd-oxides. The red Kupferschiefer variety is distinctly lower in carbonates and resembles rather a marl. Average Fe2O3 content is about 5 times higher than that in the grey Kupferschiefer. The average TOC content in the red Kupferschiefer is about 10 times lower than that in the black Kupferschiefer and about 5 times lower than that in the grey Kupferschiefer. Average Cu content is 1,070 ppm at variability coefficient 81% . The grey Kupferschiefer contains 3 times higher contents of Cu and its variability coefficient is 2 times higher, which points out to quantitative changes during the leaching of copper when secondary oxidation of deposit proceeded. Thus, low Cu and TOC values can be indicative for oxidizing environment and, consequently, can be good exploration guides to zones enriched in precious metals. Average Au content in the red Kupferschiefer is high 15.419 ppm, is much higher than that for the grey Kupferschiefer. Comparison of metal contents in samples from the oxidized zones reveal high variability of Au values in the red, which may change from a few ppm to over 100 ppm. Negative Cu-Au correlation supports the hypothesis on the introduction of gold into the red Kupferschiefer during the leaching of copper. Au horizon is continuous and located close to the bottom contour of Cu deposit. It includes the top part of the sandstone and extends down, even beneath 1 m from the top of the sandstone. The average thickness of the high-Au zones is 0.2 m, and various from 0 up to 1.4 meters. The Au and PGE deposit described in this paper fit well in the world criteria for economic-grade accumulations.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2008, 78, No 3; 151-280
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bitumen and salt contents within the Quaternary sediments at Starunia palaeontological site and vicinity (Carpathian region, Ukraine)
    Autorzy:
    Kotarba, M. J.
    Więcław, D.
    Toboła, T.
    Zych, H.
    Kowalski, A.
    Ptak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/191512.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    bitumen content
    chloride ion content
    Pleistocene
    Holocene
    Starunia palaeontological site
    Carpathian region
    Ukraine
    Opis:
    Geochemical studies were conducted on bitumen and salts saturating the Pleistocene and Holocene sediments from an abandoned ozokerite mine in Starunia. This location is noted for the discovery of remnants of a mammoth and three woolly rhinoceroses in 1907, and a nearly completely preserved rhinoceros carcass in 1929. The bitumen (oil) and brines (chloride ions) were preserving agents for the large Pleistocene mammals. The main mass of organic carbon hosted in the Pleistocene muds is related to bitumen originating from oil migrating from deep accumulations within the Boryslav-Pokuttya Unit. The highest analysed bitumen content is 9.26 wt%. The chloride ion content, originating from highly concentrated brines ascending from the salt-bearing Miocene Vorotyshcha beds, vary from 0 to 4.66 wt% but this usually does not exceed 1 wt%. The natural pathways of underground fluids (oil, gas and water) migration within the Quaternary sediments were disturbed by intensive ozokerite mining operations run between the last three decades of the 19th century and 1960. Therefore, the present preservation and conservation conditions of large, extinct mammals' remains can be different from those prevailing during the Pleistocene, when the mammals were buried. Taking into consideration the contents of the remaining preservatives: chloride and bitumen, the most favourable zone for fossils conservation and preservation is located close to boreholes Nos 22, 23, 28 and 36N, where the thickness of Pleistocene muds exceeds 2 metres. Generally, the spatial distributions of bitumen and chloride ion contents within the Holocene sediments and salt-bearing Miocene Vorotyshcha beds are very similar to those in the Pleistocene sediments.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2009, 79, No 3; 447-461
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Petroleum systems in the Palaeozoic–Mesozoic basement of the Polish and Ukrainian parts of the Carpathian Foredeep
    Autorzy:
    Kotarba, M. J.
    Więcław, D.
    Kosakowski, P.
    Wróbel, M.
    Matyszkiewicz, J.
    Buła, Z.
    Krajewski, M.
    Koltun, Y. V.
    Tarkowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/191548.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    source rock oil-gas correlations
    petroleum system
    generation and expulsion areas
    Palaeozoic–Mesozoic basement
    Carpathian Foredeep
    Polska
    Ukraine
    Opis:
    Comprehensive geochemical analyses (Rock-Eval pyrolysis, stable carbon isotopes, biomarkers and aromatic hydrocarbons and elemental composition of kerogen) provide an explanation of genetic relationships between dispersed organic matter in various source rock horizons of the Palaeozoic–Mesozoic basement in the Carpathian Foredeep and also the liquid (oils and condensates) and gaseous hydrocarbons accumulated in reservoirs in the area between Kraków and Ivano-Frankivs’k. The study region was divided into seven zones around oil, condensate and gas deposits for detailed determination of genetic oil – natural gas – source rock correlation. Based on source, reservoir, seal and overburden rocks, generation, expulsion, migration and accumulation of hydrocarbons and trap formation along with 1-D and 2-D modelling, two separated petroleum systems of the Palaeozoic–Mesozoic strata were established. One petroleum system occurs in the western part of the Małopolska Block, the second one in the eastern part of the Małopolska Block and western part of the Kokhanivka Zone (south-eastern Poland – western Ukraine). In addition, nine generation and expulsion areas were identified. The comparison of the two petroleum systems reveals that the western part of the Małopolska Block has considerably greater prospects for oil and gas exploration than the eastern part of the Małopolska Block and the western part of the Kokhanivka Zone.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 487-522
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies