Wyniki wyszukiwania - Biblioteka Nauki

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Pozycja tzw. skałek w profilu jednostek brzeżnych Karpat Zewnętrznych

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Olszewska B. , Paul Z. , Ryłko W.

Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

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2009

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tom T. 35, z. 3/1

93-95

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Information of the Ropice Horizon in the territory of the Czech Republic (Late Jurassic, Silesian Unit of Outer Western Carpathians)

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Vasicek Z.

Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

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2009

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tom T. 35, z. 3/1

103-104

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Emission Measurements of Geogenic Greenhouse Gases in the Area of “Pusty Las” Abandoned Oilfield (Polish Outer Carpathians)

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Guzy P. , Pietrzycki D. , Świerczewska A. , Sechman H. , Twaróg A. , Góra A.

Journal of Ecological Engineering

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2017

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tom Vol. 18, nr 4

100--109

EN

The Carpathians may play a significant role as a supplier of greenhouse gases to the atmosphere. Unfortunately, most of the discovered oil and gas deposits are recently only historical objects. An example is the Sękowa-Ropica Górna-Siary oil deposit located in the marginal part of the Magura Nappe where oil had been extracted in dug wells until the mid XX century. One of such extraction sites is the “Pusty Las” oilfield. In that area, 10 methane and carbon dioxide emission measurement sites were located, among which 4 in dried dug wells and 6 in dig wells still filled with oil and/or water. Dynamics of methane and carbon dioxide concentration changes were measured with the modified static chambers method. Gas samples were collected immediately after the installation of the chamber and again, after 5 and 10 minutes. In the case of reclaimed or dry dug wells, static chamber was installed directly at the ground surface. In wells still filled with oil and/or water the chamber was equipped with an “apron” mounted on special sticks. The dynamics of concentrations changes varied from -0.871 to 119.924 ppm∙min-1 for methane and from -0.005 to 0.053% obj∙min-1 for carbon dioxide. Average methane emission was 1.9 g∙m-2∙d-1 and that of carbon dioxide was 26.95 g∙-2∙d-1. The measurements revealed that an abandoned oil field supplies significant amounts of greenhouse gases to the atmosphere although the emission of methane is lower than that measured e.g. in mud volcanoes located in various parts of the world.

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Reconstruction of palaeoclimatic changes registered in the Kaletowa landslide (Beskid Makowski Mts., Outer Carpathians, South Poland) on the basis of sedimentological and dendrochronological records

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Krąpiec M. , Margielewski W.

Folia Quaternaria

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2003

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tom nr 74

17-34

EN

A depression within the small Kaletowa landslide, Beskid Makowski (Średni) Mts., Outer Carpathians, is filled with 1.8-m-thick organic-mineral sediments of a fen-type peatbog. Some radiocarbon datings using various material (wood detritus, tree trunk, organic silt) obtained from the bottom of the depression show that the landslide was formed at the end of the Subboreal (ca. 3 ka). The peat layer is covered by minerogenic sediments (silty clay, silt-sandy clay), 0.7 m thick, which, in turn, are overlain by a layer of sedge peat. The onset of deposition of this cover has been dated to 2,150-60 years BP, when a strong increase in climatic humidity during the Early Subatlantic took place. At the bottom of a depression excavated during construction of a cultivation pond, trunks of fir (Abies alba Mill.) with roots embedded in the substratum have been found. Their life age was about 120 years. The preserved fir wood, dark grey-brown in colour, is characterized by extremely narrow tree rings, associated with local habitat (periodical inundation of the depression), and climatic changes (strong cooling and wetting) that led to both landslide and depression formation at the end of the Subboreal.

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Late Glacial - Holocene peat bog on Kotoń Mt. and its significance for reconstruction of palaeoenvironment in the Western Outer Carpathians (Beskid Makowski Range, South Poland)

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Margielewski W. , Obidowicz A. , Pelc S.

Folia Quaternaria

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2003

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tom nr 74

35-56

EN

On the south slope of the pass between Kotoń Mt. and Pękalówka Mt. (Western Carpathians, Beskid Makowski Range), there occur big landslide with longitudinal deppressions, felt up of minerotrophic mire, with particularly long sequence of the Late Glacial deposits. The sediments were analysed by palynologic, macrofossils and sedimentological methods. Climatic changes of the Late Glacial and the Holocene were registered as changes in regional and local vegetation, as well as changes in the sediments. The maximal depth of the deposits amounts to about 4.7 m. On the bottom there occurs silt with gravel and a thin layer of decomposed peat, dated by 14C at 12, 140-70 years BP. Above, peat of the moss fen and sedge-moss fen type occurs, covered by a thick layer (thickness about 0.9 m) of minerogenic deposits (clay and silty clay). The beginning of the minerogenic cover sedimentation was dated at ca. 8, 230-80 years BP. The results of pollen analysis, confirmed by radiocarbon datings, show that the landslide depression was created in the Bolling Interstadial. The peat accumulation was started in the Older Dryas. The sedimentation of minerogenic deposits covering the mire, began during the strong wet phases registered in the Early Atlantic, and being continued in the wet periods of the Subboreal and Subatlantic.

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Record of Late Holocene palaeoenvironmental changes in a Carpathian Lanslide: a case study of the Siekierczyna landslide (Beskid Wyspowy Mts., Outer Carpathians, South Poland)

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Bryndal T. , Cabaj W. , Margielewski W. , Pelc S.

Folia Quaternaria

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2003

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tom nr 74

75-96

EN

Successive phases of the Siekierczyna landslide evolution (the Beskid Wyspowy Mts., Outer West Carpathians) are related to Holocene climatic changes. Three phases of the landslide rejuvenation have been radiocarbon dated at: 3.8 ka, 2.9 ka and 2.2 ka. During these phases the valley of the Lasówka stream was dammed with colluvium and formed a natural dam lake. Mobilisation of the landslide occurred in response to strong climatic changes (cooling and wetting), recorded for the Subboreal Phase (ca. 4.2-3.8 ka and 3.3-2.9 ka), as well as (especially strong) at the start of the Subatlantic Phase (ca. 2.4-1.8 ka BP). Results of dendrochronological analysis indicate that the youngest phases of ground mobilisation were triggered by heavy rainfalls which caused floods in the Carpathians in years: 1940-41, 1958 and 1960, as well as in 1970-1974.

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Evolution of small-scale deformation in relation to increasing calcite cementation in the sandstones of the Magura Nappe, Outer Carpathians (Poland)

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Świerczewska A. , Tokarski A. K.

Biuletyn Państwowego Instytutu Geologicznego

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2001

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tom nr 396

152-153

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Fractured clasts in neotectonic reconstructions: an example from the Nowy Sącz basin, western outer Carpathians, Poland

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Tokarski A. K. , Świerczewska A. , Zuchiewicz W.

Studia Quaternaria

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2007

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tom Vol. 24

47-52

EN

This paper presents the results of a detailed analysis of fractured clasts hosted within Miocene and Pleistocene paraconglomerates that are exposed close to a map-scale overthrust. Both these paraconglomerates bear numerous fractured clasts (22-50%). The architecture of fractures (joints and minor faults) is well-organized and independent of both clast orientation and the degree of clast roundness. The fractures were formed in situ, most probably due to neotectonic activity of the map-scale overthrust. The number of fractured clasts is positively correlated with the clast size, and negatively correlated with the grain-size of clasts of detrital rocks. The number of fractured clasts increases in clasts of detrital rocks, compared to those of quartzites and magmatic rocks.

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Klimkówka Lake in Beskid Niski - geotouristic aspects

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Waśkowska A. , Golonka J. , Witkowska E.

Geotourism / Geoturystyka

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2014

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tom nr 1

3--14

EN

The Klimkówka Lake geotouristic site is one of the greatest attractions of the Beskid Niski Mountains of the Polish Carpathians Mts. Nearly 20 years of existence of the artificial dam lake generated the development of tourism in the area. The great advantage of Klimkówka Lake region is the presence of a number of spectacular surface rock outcrops situated in convenient locations for visitors, in which crop out the youngest rocks of the Rača Zone of the Magura Nappe. The area around the Klimkówka Lake is a great training ground to acquire knowledge of the geology of the Outer Carpathians, as well as different varieties of sedimentary rocks, and sedimentary and tectonic structures.

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Structural interpretation of semi-detailed magnetotelluric survey in Kamienica Dolna-Gogołów area in the Polish Outer Carpathians

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Stefaniuk M. , Ślączka A.

Annales Societatis Geologorum Poloniae

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2003

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tom Vol. 73, No 3

219-231

EN

Semi-detailed magnetotelluric sur vey was carried out in the area between Kamienica Dolna, Gogołów and Łopuchowa in the Polish Outer Carpathians. Magnetotelluric soundings were made along three lines located in a zone of the tectonic loop in the Carpathians' basement, which is reflected by the distribution of flysch outcrops. The sounding sites along profiles were ca 1.5 km apart. Magnetotelluric data were measured with the use of MT-1 system. To eliminate the effects of electromagnetic noise, the magnetic field remote reference was applied. Measurement data were processed using standard procedures of remote reference processing. Quantitative data interpretation was made with the use of 1D LSQ inversion. Initial geoelectric models were constructed basing on geological cross-sections obtained from surface and borehole data. 2D resistivity cross-sections, obtained from MT data interpretation, allowed the general structure of the flysch cover and its basement to be identified. Two major high-resistivity horizons were related to the top of Meso-Palaeozoic and Precambrian basement. A low- resistivity layer, related to the Lower Palaeozoic sediments, was interpreted.

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Jointing in the Dukla Nappe (Outer Carpathians, Poland) : an attempt at palaeostress reconstruction

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Mastella L. , Zuchiewicz W.

Geological Quarterly

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2000

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tom Vol. 44, Nr 4

377-390

EN

The joint network in the portion of the Dukla Nappe studied originated in two stages showing different orientations of the stress field axes. The older, compressive stage I was characterised by a N45°E-orientated (at present coordinates) horizontal s1, and formation of the diagonal, shear (SL and SR) joint system. The younger, extensional stage II was characterised by vertical s1 and horizontal, N35°E-orientated (also at present coordinates) s3, suitable for formation of the fold-parallel joints. At the turn of the first stage, under diminishing horizontal compression (s1 trending N35°E), the cross-fold T joints developed. The orientation of the maximum compression axis changed between stages I and II. The first stage probably commenced while strata which were not fully lithified underwent shortening, and lasted until the termination of nappe emplacement. The second stage, in turn, is associated with post-orogenic collapse of the Carpathians, whose onset in the study region began at least in Late Miocene times.

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Neoproterozoic ophiolite exotic blocks in the Outer Western Carpathians, southern Poland : a record of the fast ocean-floor cooling and alterations

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Gawęda A. , Szopa K. , Waśkowska A. , Golonka J. , Krzykawski T. , Kalinichenko T.

Geological Quarterly

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2023

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tom Vol. 67, No. 1

art. no. 9

EN

Ophiolitic blocks, represented by metagabbro and serpentinite containing relict pyroxene, olivine, baddeleyite, zirconolite, Ni-pyrite and pyrrhotite, were found as exotic blocks in an olistostrome in the Magura Nappe, Outer Western Carpathians. The geochemical and isotopic features of the blocks suggest they represent mantle-derived rocks, with within-plate geochemistry signatures, modified by subduction, with lithospheric mantle input. A U-Pb apatite cooling age (614 ±3 Ma) is within age uncertainty of a published U-Pb zircon magmatic crystallization age (~614 Ma) implying rapid post-crystallization cooling. Pervasive alteration with replacement of primary minerals by low-temperature assemblages is observed in all rock fragments and is interpreted as contemporaneous with shearing. The secondary mineral assemblages and temperature modelling allow the interpretation that the pervasive ocean-floor metamorphism is the alteration in these meta-mafic rocks. These ophiolitic fragments can be linked to the Neoproterozoic break up of Rodinia/Pannotia.

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Welcome in Herlandia 2014 XVth International Conference of Young Geologists Her'lany 2014 Międzybrodzie Żywieckie, Poland, May, 8th-10th 2014

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Dwornik M. , Manecki M. , Zahradnikova B. , Kovacova M. , Zahradnik L. , Greganova M. , Kondela J. , Strba L. , Vizi L. , Bazarnik J. , Majka J. , Kwaśniak-Kominek M. , Kośmińska K.

Geology, Geophysics and Environment

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2014

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tom Vol. 40, no. 1

77

EN

The 15th International Conference of Young Geologists was held in the Polish Outer Carpathians, in Międzybrodzie Żywieckie, located in the Beskid Mały Mts. All participants were hosted in Niagara resort. The conference was organized by the AGH University of Sciences and Technology (AGH), Krakow (PL), Faculty of Natural Sciences of Comenius University (CU), Bratislava (SK) and the Faculty BERG of Technical University (TUKE), Kosice (SK). For several years the members of the scientific committee have been Prof. Dusan Plasienka (CU), Julian Kondela (TUKE) and Prof. Maciej Manecki (AGH). The conference was organized by Ph.D. students from AGH and the members of the Geological Club from Bratislava. This year 70 young scientists from Poland, Slovakia, Czech Republic and Russia participated in the conference. They presented over 50 talks covering a very wide spectrum of Earth science disciplines such as: tectonics, sedimentology, mineralogy, petrology, paleontology, geophysics, geoengineering and geoinformatics. The best student presentation in English was awarded with the Rudolf Mock Award. This year, the award went to Karolina Kośmińska, Ph.D. student from AGH, for excellent presentation in petrology on blueschists from Svalbard. The award was presented during closing ceremony by Professor Maciej Manecki. An important part of the meeting was "evening dinner discussion", where Professor Jan Golonka (AGH) presented his lecture on evolution of the Outer Carpathians. Topic of the lecture was also an introduction to the geological excursion. On Saturday, the participants visited pumped-storage hydroelectric power plant in Porąbka and unique outcrops of cieszynity in Cieszyn area. A guided tour in Brewery Museum in Żywiec ended the excursion. The next conference will return to the original location, Her'lany, Slovakia.

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Organic-matter vitrinite reflectance variability in the Outer Carpathians, Poland : relationship to tectonic evolution

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Zielińska M.

Geological Quarterly

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2017

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tom Vol. 61, No. 1

214--226

EN

Random vitrinite reflectance of allochthonous plant material varies throughout all the flysch sedimentary units of the Outer Western Carpathians. The vitrinite reflectance of coalified phytogenic matter is variable even within the same lithostratigraphic unit. There is no clear relationship between random vitrinite reflectance and stratigraphy (age of particular strata) within surface samples. The typical pattern of increasing random reflectance with depth in boreholes is unsettled by Rro “jumps” which occur within folds and overthrusts. However, this study revealed a trend of increasing random vitrinite reflectance from north to south in the area of the Magura Unit. A compressional regime involving phases of uplift and burial, varying from place to place in the flysch basin, was the main factor influencing coalification. The initial maturity of organic matter transported to the marine environment was a secondary factor. A degree of coalification had occurred in the flysch sediments prior to the main stage of fold-and-thrust movements associated with the phase of maximum tectonic subsidence at the end of the Eocene. It is generally assumed that coalified plant material dispersed in sedimentary rocks experienced the same physical and chemical changes as those in larger accumulations of coal. Coalification of phytogenic material coeval with flysch in the Outer Carpathians corresponds to the interval from sub-bituminous to low-medium-rank bituminous coal.

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Koralowce Scleractinia z wapieni egzotykowych typu sztramberskiego polskich Karpat zewnętrznych

80%

Morycowa E.

Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

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2008

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tom T. 34, z. 3/1

129-137

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Skawce Sandstone Member - a New Lithostratigraphic Unit of the Łabowa Shale Formation (Paleocene - Eocene: Magura Nappe, Siary Subunit) Polish Outer Carpathians

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Cieszkowski M. , Waśkowska-Oliwa A.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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2001

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tom Vol. 49, nr 2

137-149

EN

The present paper deals with the Upper Paleocene - Lower and Middle Eocene deposits in the Siary Subunit of the Magura Nappe in the area of Sucha Beskidzka, Polish Outer Carpathians. They are represented by variegated shales of the Łabowa Shale Formation intercalated with thick-bedded sandstones traditionally called the "Ciężkowice sandstones" - an informal lithostratigraphic unit typical for the Silesian Nappe. In the Magura Nappe, these thick-bedded sandstones are here formally distinguished as the Skawce Sandstone Member of the Łabowa Shale Formation.

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1D modelling of hydrocarbon generation and expulsion from Oligocene Menilite source rocks in the San and Stryi rivers region (Polish and Ukrainian Carpathians)

70%

Kosakowski P.

Geological Quarterly

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2013

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tom Vol. 57, No. 2

307–-324

EN

Based on geochemical data of the Oligocene Menilite Shales in the Boryslav–Pokuttya, Skole (Skyba), Silesian (Krosno) and Dukla units in the Carpathians, between Krosno and Styi towns, 1D modelling of generation and expulsion processes of hydrocarbons has been carried out. These strata are characterized by mostly high organic matter content, the total organic carbon (TOC) content reaching up to 26 wt.%. The highest hydrocarbon potential was recorded in the Boryslav–Pokuttya and Skole units. Organic matter in the Skole (Skyba) Unit is immature; in turn, in the Boryslav–Pokuttya, Silesian (Krosno) and Dukla units it is mature enough for generating hydrocarbons. Results of the modelling reveal that during the deposition of flysch in all the above mentioned Outer Carpathian units the Menilite source rocks did not reach a level of thermal maturity high enough to generate hydrocarbons. Conditions of hydrocarbon generation were obtained in the thrusting stage of the Outer Carpathians. In general, the process of hydrocarbon generation began at depths of less than 2 km in the Polish part, and about 4 km in the Ukrainian part. The kerogen transformation level reached from 10% to to complete transformation as in the Suche Rzeki IG 1 well.The results of the modelling of hydrocarbon generation and expulsion from the source rocks of all the units reveal that the highest maturity and the highest generation potential were obtained by the Menilite Shales in the Silesian and Dukla units.

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Neogene calc-alkaline intrusive magmatism of post-collisional origin along the Outer Carpathians: a comparative study of the Pieniny Mountains and adjacent areas

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Pécskay Z. , Gméling K. , Molnár F. , Benkó Z.

Annales Societatis Geologorum Poloniae

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2015

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tom Vol. 85, No. 1

77--89

EN

A petrographical and geochemical analysis was carried out on intrusive rocks from the Pieniny and Moravian areas, with special attention to boron content and K-Ar radiometric ages. The intrusions form medium- to high-potassium calc-alkaline andesitic suites, which are compositionally slightly different from each other and from the other calc-alkaline sequences in the Carpathian-Pannonian Region. No significant geochemical differences were observed within the different phase intrusions in the Pieniny areas. However, there is a slight difference in major and trace element composition between the Moravian and Pieniny intrusions. The andesitic rocks in the Pieniny and Moravian area are enriched in large ion lithophile elements and light rare earth elements and depleted in high field strength elements, indicating a metasomatized mantle source of the parent magmas. The low boron concentration of the andesitic rocks in the Pieniny area is in the range measured in back-arc, intraplate basalts of the Bakony-Balaton Highland volcanic field, whereas the higher boron content of the Moravian rocks overlaps with that of the Western Carpathian andesites. This may indicates the heterogeneity of the mantle lithosphere below the areas, or indicates different magma evolution histories. On the basis of the systematic geochronological study, the intrusive rocks along the Outer Carpathians can be divided on three groups, which overlap with each other temporally. The oldest magmatism occurred from 14.8 Ma to 11.0 Ma in the Uhersky Brod area, Moravia, which was followed by the emplacement of andesitic dikes and sills in the Pieniny Mts., south Poland (13.5–10.8 Ma). In the Pieniny area, two intrusive phases were distinguished. Partly overlapping with this area, but generally younger than this magmatism, the emplacement of the youngest intrusions is referable to the Poiana Botizei-Ţibleş-Toroiaga-Rodna-Bârgâu intrusive area, Romania, where magmatic activity started at ~11.8 Ma and terminated at 8.0 Ma.

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Remarks on the possibility of applying the mercury porosimetry method in petrophysical studies of rocks

70%

Maruta M. , Kułynycz V.

AGH Drilling, Oil, Gas

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2017

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tom Vol. 34, no. 4

865--873

EN

Rock pore space is a rock mass composed of a large number of irregularly arranged and shaped pores. The diameter of the pores and their distribution and tortuosity determine the possibility of collecting and conducting reservoir fluids (Oil, Natural Gas and Saline water). Characterization of the pore space is intended to determine the distribution and size of the cavities in the rock. The characteristics of the study is based on parameters such as porosity and permeability and upon which the petrophysical static model is built. The article discusses methods of mercury porosimetry from the aspect of the exploration of the pore space of reservoir rocks for hydrocarbons. The research results of the petrophysical parameters of samples similar to typical reservoir rocks and unconventional rocks were presented. The results of capillary pressure tests in graphic form for six samples of the Inoceramian sandstone of the Skole unit were also given. The results of the petrophysical studies show the limitations of the use of the mercury porosimetry method in investigations of low reservoir parameters. Therefore, the authors have identified the next stage of research as exploring the application of the helium porosimetry method due to the chemical neutrality of helium and its small particle size.

20

Taphonomy of ichthyofauna from an Oligocene sequence (Tylawa Limestones horizon) of the Outer Carpathians, Poland

70%

Bieńkowska M.

Geological Quarterly

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2004

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tom Vol. 48, No 2

181--192

EN

Oligocene deposits at Rudawka Rymanowska (Silesian Nappe, Polish Outer Carpathians) contain abundant fish remains. Sandstones and shales, displaying features of low-density turbidity-current deposits, contain isolated fish bones and scales segregated as detrital elements. Fish skeletons occur in laminated Tylawa Limestones (taphonomic Assemblage A), considered to be pelagic in origin, and in laminated claystones (taphonomic Assemblage B), probably also pelagic. Assemblage A contains very well preserved skeletons; Assemblage B contains only 40 to 60% of well preserved skeletons, the rest being partially disintegrated. The very good state of preservation of skeletons in the Tylawa Limestones indicates cessation of decay soon after death. In the claystones, the fish carcasses had arrived at the sea floor in various stages of soft tissue decay, and the carcasses rested on the sea floor for variable lengths of time. Deformations of the vertebral columns in all specimens studied are considered to be natural post-mortem ones. Taphonomic analysis supplements sedimentary data to reconstruct an array of physical/biogenic agents and events that acted intermittently at the Oligocene sea floor in other parts of the Carpathians and of the Caucasus.