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Tytuł:
Projekt Geoparku „Dolina Wisłoka - Polski Teksas”
The project of the Geopark Wisłok Valley - The Polish Texas”
Autorzy:
Wasiluk, R.
Powiązania:
https://bibliotekanauki.pl/articles/2075053.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geopark
geotourism
Outer Carpathians
geoturystyka
Karpaty zewnętrzne
Opis:
The Polish Geological Institute - National Research Institute is implementing a number of projects of new geoparks in Poland. One of them is the Geopark "Wislok Valley - The Polish Texas", which is located in the Polish Outer Carpathians (SE part). Oil resources, nappe tectonics and other geological components of the Outer Carpathians constitute important elements of the geodiversity of this region. The area is located in the Beskid Niski Mts. in the Jaslo-Sanok Basin and Strzyżów, Dynów, Jaslo and Bukowskie Foothills, between Strzyżów and Barwinek, and encloses an area of about 1000 km2. It covers 19 municipalities in six districts of the Podkarpackie Voivodeship: Krosno (city county and county), Jaslo, Brzozów, Strzyżów, Sanok. For the project of the geopark's geotouristic map, geosites and geological-educational paths will be created. The geopark website and different advertising brochures will promote geoturism. The final product will be targeted at regional and local public administration bodies.
Źródło:
Przegląd Geologiczny; 2013, 61, 4; 224--229
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przydatność profilowań georadarowych w interpretacji budowy tarasów rzecznych (dolina Kamienicy, polskie Karpaty zewnętrzne)
Usefulness of GPR measurements in interpretation of structures of river terraces (Kamienica River Valley, Polish Outer Carpathians)
Autorzy:
Olszak, J.
Karczewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074621.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
osady rzeczne
GPR
polskie Karpaty zewnętrzne
fluvial deposits
Polish Outer Carpathians
Opis:
Studies on river terrace deposits using ground penetrating radar (GPR) were conducted on several river terraces in the Kamienica river valley, Polish Outer Carpathians. All GPR profiles were collected using RAMAC/GPR system with 50 and 200 MHz antennae. The study has been based on 10 GPR profiles from 40 m to 200 m in length from which two as the most characteristic are presented in the paper. Terrace sediments consist mainly of gravels with subordinate sand. A peat layer has been found in one profile. These deposits lie on strath terraces built up with flysch sandstones and shales. Most of the profiles show reflections suggesting that the deposits are composed of multichannel river deposits. Some features of the profiles also indicate the presence of strath terraces and a peat layer. Even though lithology and texture of the investigated sediments are not very diverse, GPR measurements are quite useful in a few aspects of terraces’ structure interpretation.
Źródło:
Przegląd Geologiczny; 2008, 56, 4; 330-334
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ więźby skały na mechanizm deformacji : studium przypadku wstęg deformacyjnych w piaskowcach otryckich (Bieszczady)
The impact of rock fabric on deformation: a case study of deformation bands in the Otryt sandstone (Bieszczady Mountains, SE Poland)
Autorzy:
Strzelecki, Piotr Jan
Świerczewska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/20240732.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
tekstura
ziarno
napięcie
diageneza
Karpaty Zewnętrzne
texture
grain
strain
diagenesis
Outer Carpathians
Opis:
Compaction is one of the fundamental modes of strain localization. Pure compaction bands are deformation structures that develop in granular rocks. The Otryt sandstone, a flysch sandstone, hosts naturally formed pure compaction bands that originated due to tectonic shortening. The pure compaction bands formed when the host rock was poorly indurated. The deformation bands are of the disaggregation or cataclastic type, with cataclasis occurring more frequently in coarser-grained sandstones. Additionally, in laminated fine-grained sandstones, disaggregation takes the form of micro-folding. Textural features of the host rock appear to control the microstructural type of pure compaction band.
Źródło:
Przegląd Geologiczny; 2023, 71, 4; 231-234
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Struktury ślizgowe ze stref nasunięć w polskiej części Karpat zewnętrznych
Kinematic indicators from thrust zones in the Polish Outer Carpathians (southern Poland)
Autorzy:
Rybak, B.
Powiązania:
https://bibliotekanauki.pl/articles/2074423.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
struktura ślizgowa
indykator kinematyczny
Karpaty zewnętrzne
kinematic indicators
slickensides
thrust zones
Polish Outer Carpathians
Opis:
The studies were concentrated on the Mszana Dolna and Świątkowa Wielka tectonic windows of the Magura nappe, and the southern part of the Silesian nappe called the Fore-Dukla zone. Slickensides were often found to form multilayered structures with numerous slip surfaces. Besides the commonly known striae, tool marks, slickenside steps and detachment fissures, also other previously unreported structures were found, such as squeezes and ribs. The morphology of already well known slickenside-related minute shear fractures R, R’, R1 was characterized in detail. Most of the kinematic indicators determine only the movement trajectories without determining the sense of movement. On the other hand, the most reliable sense of movement indicators are steps, ribs and squeezes accompanied by shear fractures as well as syntectonic, overlapping step-like mineral covers and detachment fissures.
Źródło:
Przegląd Geologiczny; 2006, 54, 10; 905-912
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regionalizacja tektoniczna Polski-Karpaty zewnętrzne i zapadlisko przedkarpackie
Tectonic subdivision of Poland: Polish Outer Carpathians and their foredeep
Autorzy:
Oszczypko, N.
Ślączka, A.
Żytko, K.
Powiązania:
https://bibliotekanauki.pl/articles/2074568.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
regionalne jednostki tektoniczne
Karpaty zewnętrzne
zapadlisko przedkarpackie
regional tectonic units
Outer Carpathians
Carpathian Foredeep
Opis:
Authors discussed the actual state of tectonic regionalization of the Outer Polish Carpathians and their foredeep. The following category of tectonic unit are defined: the groups of nappes, nappes, sub-nappes, thrust-sheets (skibas), anticlinorial and synclinorial structures, and regional-scale folds.
Źródło:
Przegląd Geologiczny; 2008, 56, 10; 927-935
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transgraniczny geopark Karpaty fliszowe i ich wody mineralne
Flysch Carpathians and their mineral waters cross-border geopark
Autorzy:
Miśkiewicz, K.
Golonka, J.
Waśkowska, A.
Doktor, M.
Słomka, T.
Powiązania:
https://bibliotekanauki.pl/articles/2074884.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geopark
wody mineralne
Karpaty zewnętrzne
flisz
waloryzacja
spa
geoturystyka
mineral waters
flysch
valorization
geotourism
Opis:
The occurrence of mineral waters and related spas constitutes the leading theme of the projected geopark: Flysch Carpathians and their mineral waters. The geopark is located on the Beskid Sądecki and Beskid Niski area on the Polish side. It is situate in the area of the occurrence of three Carpathian units: Magura Nappe (the major part of the area), which includes Krynica, Bystrica, Racza and Siary tectonic-facies zones; Silesian Nappe and Grybów Unit. Besides mineral waters, the geodiversity of the area is defined by well exposed flysch rocks profiles including clastic type localities of the Magura Nappe described in the XIX century pioneers of geological investigations. The landslide morphology, attractive geomorphological forms like waterfalls, diversified river valleys, tors as well as places connected with history and tradition of exploration and exploitation of Carpathian hydrocarbons fields. The type localities of profiles of Grybów, Siary and Krynica Units as well as Łabowa Variegated Shales, Beloveza and Malcov formations. All these elements represent geotouristical attractions with high potential. They will be included in the network of preserved geosites within the projected geopark. The analysis of proposed geopark Flysch Carpathians and their mineral waters indicates high degree of diversification of natural values, especially geodiversity as well as richness of historical-cultural heritage. The preservation and protection methods are also diversified. This region represents unique geoenvironmental and historical values on the European scale, therefore providing good chances for establishment of geopark. The proposition of geopark with mineral waters and related spas in the Flysch Carpathians is first such project in the world. The documentation of geosites was already gathered during this stage of work, it requires only actualization, minor additions and construction of unified database. The evaluation of the actual touristic infrastructure provided also generally positive results, only the eastern part of geopark requires additional investments and promotion.
Źródło:
Przegląd Geologiczny; 2011, 59, 9; 611-621
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ewolucja sieci spękań ciosowych we fliszu zachodniego Podhala (Karpaty wewnętrzne, Polska)
Joint-network evolution in the western part of Podhale Flysch (Inner Carpathians, Poland)
Autorzy:
Ludwiniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074580.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
cios
odkształcenia podłoża w paleolicie
flisz Podhala
Karpaty zewnętrzne
joints
paleostress
Podhale flysch
Inner Carpathians
Opis:
Thenetwork of joints cutting the flysch deposits in the western Podhale is reasonably regular both in map scale and in individual outcrops. It is formed by five sets having a different orientation with respect to the range of the Podhale Synclinorium, as well as a different age and origin. The oldest diagonal sets (DR, DL) are conjugate and roughly coeval and were formed as "potential shear surfaces" in horizontal beds, whereas their further opening proceeded in an extensional mode. The younger sublongitudinal set (L') comprises extensional joints originated during the early buckling of beds. The transverse set (T), younger than the L'-set, comprises extensional joints formed in relation to the WNW-ESE extension of the Podhale Synclinorium. The youngest longitudinal set (L) originated in an extensional mode in consequence of stress relaxation in the rock massif during postorogenic uplift. Joint density increases in areas involved in relatively strong tectonic disturbances: the zone of tectonic contact between the flysch and the Pieniny Klippen Belt, the zone of contact between the Paleogene deposits, the Tatra Massif and the Biały Dunajec fault zone.
Źródło:
Przegląd Geologiczny; 2008, 56, 12; 1092-1099
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Związek morfologii wybranych osuwisk z budową geologiczną Karpat i zapadliska przedkarpackiego w świetle analiz numerycznego modelu terenu
The relationship between the selected landslide morphology and the geologic setting of the Carpathians and the Carpathian Foredeep based on the digital terrain model
Autorzy:
Wódka, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2075912.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
osuwisko
cyfrowy model terenu
Karpaty Zewnętrzne
zapadlisko przedkarpackie
landslide
digital terrain model
Outer Carpatians
Carpathian Foredeep
Opis:
This article presents the results of digital terrain model analysis and field observations related to occurrence of characteristic forms in landslide surface that may indicate the geological setting. Based on these observations, three characteristic structures were selected occurring on many landslides in the Carpathian Mountains and the Carpathian Foredeep. The former are the wrinkle structures visible on the digital terrain model associated with movement along the bedded surface. The other are the streak structures linked to the occurrence of gravels and sands on the clays. The third mogul type structures are related to cylindrical sliding surfaces formed in clay.
Źródło:
Przegląd Geologiczny; 2019, 67, 2; 115--122
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fałdy i pasma kolankowe (załomowe) : geometria, warunki powstawania, interpretacja (przykład z fliszu Karpat zewnętrznych)
Kink folds and kink bands : geometry, conditions of nucleation, interpretation (an example fromthe Outer Carpathian flysch)
Autorzy:
Rubinkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074378.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
fałdy kolankowe
pasma kolankowe
diagram motylkowy
Karpaty zewnętrzne
kink folds
kink bands
butterfly diagram
Outer Carpathians
Opis:
Kink folds and kink bands are common structures which occur in metamorphic and sedimentary rocks. They have a specific geometry. Kink folds originate under layer — parallel compression. To nucleate those structures, several conditions are necessary such as: multilayered material, high overburned pressure conditions and presence of initial perturbation. Different sedimentary and tectonic structures form initial perturbations, e.g, solemarks, fractures and faults. Knowing the locking angle of kink fold it is possible to determine the orientation of the maximum stress axis and the friction angle between the layers using a butterfly diagram.
Źródło:
Przegląd Geologiczny; 2005, 53, 11; 1040-1046
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagrożenia osuwiskowe złóż wód mineralnych w dolinie Popradu
Landslide hazards to mineral water in the Poprad valley
Autorzy:
Zając, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/20197021.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
osuwiska
zagrożenia
woda mineralna
Dolina Popradu
Karpaty Zewnętrzne
landslides
hazards
mineral water
Poprad valley
Outer Carpathians
Opis:
The area of the Poprad valley is particulary privileged due to the presence of mineral waters recognized in Poland as curative as well as strongly transformed by mass movements. In order to increase tourist attractiveness of the region, there is a noticeable trend of more frequent usage of landslide slopes, on which can appear recharge areas for the healing waters or zones of carbon dioxide inflow. The gas-water system on the areas of the occurence isvery sensitive andeasy to destroy. Co-occurence of recharge areas and mass movement areas, which due to uncontrolled human actions, may become active and create threat to the healing waters.
Źródło:
Przegląd Geologiczny; 2022, 70, 10; 780-787
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Źródła w zlewni górnej Wołosatki w Bieszczadach Wysokich
Springs of the upper Wołosatka River catchment in the Wysokie Bieszczady Mountains
Autorzy:
Rzonca, B.
Kołodziej, A.
Laszczak, E.
Mocior, E.
Plenzler, J.
Płaczkowska, E.
Rozmus, M.
Siwek, J.
Ścisłowicz, B.
Wójcik, S.
Powiązania:
https://bibliotekanauki.pl/articles/2074599.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
źródła
źródło wody
Bieszczady
rzeka Wołosatka
Karpaty zewnętrzne
springs
spring hydrology
Bieszczady Mountains
Wołosatka River
Outer Carpathians
Opis:
Paper presents results of mapping of springs of the upper Wołosatka River catchment (Wysokie Bieszczady Mts. -Outer Carpathians). Springs were the most common outflow type in the area (52.55%). Outflow density in the area studied (8.32 km2) was equal 23.56 per km2, while spring rate was 12.4 per km2. Outflow discharges were low and very low- most springs belong to Meinzer classes VI-VIII. Only seven springs had discharges higher than 0.5 dm3/s, and three-over 1 dm3/s. The spatial outflow distribution strongly depends on geology, tectonics and river valley direction. High density of outflows was especially observed within the Bukowe Berdo anticline, where the Otryt sandstones are alternated by thin-bedded flysch of high shale content. All these layers dip down in the opposite direction to the slope, which creates numerous springs and other outflows. Furthermore, a spectacular spring line is visible in the field lying along the Halicz fault.
Źródło:
Przegląd Geologiczny; 2008, 56, 8/2; 772-772
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagospodarowanie przestrzenne na terenach objętych ruchami masowymi na przykładzie południowej części gminy Bochnia na przykładzie południowej części gminy Bochnia
Land-use planning in areas affected by mass movement: case study from southern part of the Bochnia commune
Autorzy:
Laskowicz, I.
Warmuz, B.
Powiązania:
https://bibliotekanauki.pl/articles/2074881.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ruchy masowe
zagospodarowanie przestrzenne
Karpaty zewnętrzne
jednostka Stebnik
mass movements
land-use planning
Outer Carpathians
Stebnik Units
Opis:
The data collected in land-use planning for Bochnia community and results of surface investigation and detailed mapping of landslides in this region were analyzed. Geological works were done in the frame of the Landslide Protection Framework Project. The 369 landslides with total area of 666 ha were distinguished in Bochnia community region as a result of these efforts. Tract record analysis indicates that 74% of landslides found in a field of total area of 490.7 ha was not covered in recent land-use plan. There were recognized 14.9 ha of active or periodically active landslides in a zone secured for investments (total acreage of this zone is 1399.4 ha). Also the roads network of Bochnia community is vulnerable to negative effects of mass movement. Total length of roads in the investigated area is 76.2 km, from which 9% of the roads cut the landslides. There is a dependence between development of landslides and main geomorphological units as well as diversity of basement lithology. All of the landslides occur in southern part of community, where strongly tectonically engaged Zgłobice, Silesian and Sub-Silesian Units are found in a basement.
Źródło:
Przegląd Geologiczny; 2011, 59, 9; 633-640
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Krążenie płynów w skałach okruchowych : studium przypadku piaskowców krośnieńskich z rejonu Bereżek (Bieszczady Wysokie)
Fluid circulation in clastic rocks : a case study of the Krosno sandstones from the Bereżki region (The High Bieszczady Mountains)
Autorzy:
Solecki, Marek L.
Waliczek, Marta M.
Powiązania:
https://bibliotekanauki.pl/articles/20242174.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
materia organiczna
refleksyjność witrynitu
kalcyt
płaszczowina Śląska
Karpaty Zewnętrzne
organic matter
vitrinite reflectance
calcite
Silesian Nappe
Outer Carpathians
Opis:
In this study, microscopic analysis was applied to investigate fluid flow in the Oligocene shale and sandstone samples from the Krosno Beds (Silesian Nappe, Outer Carpathians) in the Bere¿ki outcrop. Analysis of calcite generation in veins and reflectance of organic matter measurements were done. Three generations of calcite were observed, indicating three stages of fluid migration along the veins in sandstones. Moreover, oil droplets and solid bitumen migration were seen during microscopic analyses. Thermal maturity based on vitrinite reflectance measurements indicates mature organic matter to hydrocarbon generation.
Źródło:
Przegląd Geologiczny; 2023, 71, 4; 227-230
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mofeta z Tylicza w płaszczowinie magurskiej Karpat zewnętrznych
Mofetta from Tylicz in the Magura Nappe of the Outer Carpathians
Autorzy:
Rajchel, J.
Rajchel, L.
Cisek, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075090.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Outer Carpathians
Magura Nappe
Tylicz
mofetta
exhalation of CO2
Karpaty zewnętrzne
płaszczowina magurska
mofeta
ekshalacja CO2
Opis:
The described mofetta of CO2 is located in the Sądecki Beskid Mts, within the Poprad Landscape Park in Tylicz near Krynica, where it can be found on the SE slope of the Szalone hill, between the Syhowny and Bradowiec streams, the rightbank tributaries of the Muszynka Stream. The mouth of the mofetta, whose coordinates are: longitude 21o00'20”E, latitude 49o23’25’’N, and altitude 577 m a.s.l., is currently situated within a private holiday center. Geologically, the mofetta is situated within the Maszkowice Sandstone Member of the Magura Formation, in the SE part of the Magura Nappe of the Outer Carpathians. In its close vicinity the tectonic-facies Krynica zone is thrusted onto the Bystrzyca zone and the thrust line is intersected by the Tylicz dislocation. The daily volume of the gas discharged is estimated at fifteen or so thousand cubic meters with CO2 being the main constituent (almost 95%), while minor constituents include N2 (3.87%), CH4 (0.62%) and O2 (0.21%). The h13C value of the CO2 of the Tylicz mofetta is -1.05% against V-PDB. The gases of the mofetta are accompanied by an outflow of the carbonated water (HCO3-Ca-Mg + CO2 type, TDS 1.8 g/dm3) from the Lis spring, where abundant gelatinous, rusty-colored deposits of iron oxyhydroxides precipitate. In the years 1962-1966 the CO2 exhaled from the mofetta was utilized in experiments on algae growing, mainly for manufacturing an algae fodder. In the year 2011 the mofetta in Tylicz was made accessible to the public
Źródło:
Przegląd Geologiczny; 2013, 61, 9; 541--546
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model późnojurajsko-wczesnomioceńskiej ewolucji tektonicznej zachodnich Karpat zewnętrznych
Model of late Jurassic to early Miocene tectonic evolution of the Western Outer Carpathians
Autorzy:
Poprawa, P.
Malata, T.
Powiązania:
https://bibliotekanauki.pl/articles/2074481.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
basen sedymentacyjny
obszar źródłowy
tektonika
Karpaty zewnętrzne
miocen
jura
Outer Carpathians
Mesozoic
Cainozoic
sedimentary basin
source area
tectonics
Opis:
At the end of the Jurassic and beginning of the Cretaceous in the Western Outer Carpathians (WOC) rift-related extension led to development of: the deep marine grabens with flysch and pelagic sedimentation, the zones of shallow marine carbonate sedimentation, and the elevated horsts, supplying the basins with sediments. Transition to the Early Cretaceous and Cenomanian post-rift thermal sag stage was responsible for a general ceasing of tectonic activity in the source areas and unification of the previous sub-basins. In Barremian–Albian time, the northern, external sources for sediments were uplifted due to compression, presumably caused by the orogenic collision in the Middle and Outer Dacides and/or collision related to subduction of the Penninic Ocean. The Silesian Ridge, rapidly elevated and eroded during Late Cretaceous and Paleocene, is interpreted here as an active thick-skinned thrust belt. Nappe stacking in that area and stress transmission towards foreland caused flexural subsidence of the proximal zone (the inner Silesian Basin) and uplift in the distal zone (including: the outer Silesian Basin, the Subsilesian facies zone, the Skole Basin and the northern sediment source areas). The Eocene alternating shallow marine deposition in the Silesian Ridge and its exposition for erosion is interpreted as controlled by both eustatic sea level changes and episodic tectonic activity. At this time new thick-skinned thrust belt developed south of the Magura Basin, which supplied vast amount of detritus for the Magura Beds. The Eocene tectonic shortening and deformations in the Southern Magura Ridge and development of the accretionary prism caused flexural bending of its broad foreland, subsidence and relative facies unification of the basins and decrease of activity of the source areas located north of the Magura Basin. The Oligocene progress of plates/microplates convergence and relocation of the zone of tectonic shortening towards the north led to compressional uplift of the source areas located both to the north of the WOC basins and to the south of the Silesian facies zone, the later composed of crystalline basement, as well as sediments of the Magura Unit. That sources supplied with detritus the Upper Oligocene–Llower Miocene Krosno Beds, being a diachronic continuation of synorogenic deposition of the Magura Beds. During the Late Cretaceous–Paleogene–Early Miocene, an important tectonic shortening across the WOC took place, accommodated mainly in the source areas. This indicates that the palaeogeographic relationships between the Silesian Basin, the Magura Basin and the Central Carpathian Paleogene Basin were changing during the Cretaceous and Cainozoic. In the time span of Albian to Oligocene in the zone palaeogeographically located between the Magura Basin and the Central Carpathians three separate source areas were active, each characterized by a different geological setting. These sources were replacing each other in time, suggesting significant collisional and/or strike slip reorganisation of the zone during that period. The collision of the WOC evolved in time from thick-skinned mode during the Late Cretaceous–Paleogene to thin-skinned one during the Middle Miocene.
Źródło:
Przegląd Geologiczny; 2006, 54, 12; 1066-1080
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 28

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