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Tytuł:
Geology of Krynica Spa, Western Outer Carpathians, Poland
Budowa geologiczna Krynicy-Zdroju
Autorzy:
Oszczypko, N.
Zuchiewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/191688.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
lithostratigraphy
structure
deep basement
mineral waters
Magura Nappe
Outer Carpathians
Polska
Opis:
Krynica Spa is situated in the southern part of the Magura Nappe, at the boundary between the Bystrica and Krynica subunits. The Bystrica succession is composed of the Middle to Upper Eocene strata of the Magura Formation, while the Krynica succession is built up of the Palaeocene through Middle Eocene strata that belong to the Szczawnica, Zarzecze and Magura formations. The Bystrica and Krynica subunits contact along a sub-vertical, NE-dipping fault. In the study area, several NE-trending transversal faults cut both the Bystrica and Krynica subunits into several blocks. The Krynica area is seismically active, as shown by the most recent, moderate- intensity earthquakes which occurred in 1992-1993, of epicentres situated NE of Krynica Spa. The region is rich in natural mineral water springs which are confined to a tectonic block bounded by the Tylicz and Krynica faults.
Uzdrowisko Krynica jest usytuowane w południowo-wschodniej części płaszczowiny magurskiej na styku podjednostki (bystrzyckiej) i krynickiej (Fig. 1). W badanej przez nas zlewni Kryniczanki utwory strefy bystrzyckiej występują jedynie fragmentarycznie, w NE części obszaru badań. Do strefy bystrzyckiej (sądeckiej) należą wyłącznie utwory formacji magurskiej wieku środkowo-późnoeoceńskiego, o łącznej miąższości stratygraficznej 1150– 1250 m. Są to: ogniwo z Maszkowic (piaskowce gruboławicowe z przeławiceniami margli łąckich), ogniwo łupków z Mniszka (łupki pstre i cienkoławicowy flisz) oraz ogniwo piaskowców popradzkich ("piaskowce zuberowskie"). Strefa krynicka reprezentowana jest przez paleoceńsko-środkowo-eoceńskie utwory formacji szczawnickiej (cienko- i średnioławicowy flisz), zarzeckiej (cienkoławicowy flisz z ogniwem piaskowców krynickich) oraz magurskiej (piaskowce gruboławicowe). Niepełna miąższość utworów strefy krynickiej wynosi co najmniej 1300 m. Podjednostki bystrzycka (sądecka) oraz krynicka kontaktują ze sobą wzdłuż pionowego lub niemal pionowego, zapadającego na NE uskoku, zwanego "dyslokacją krynicką". Uskoki poprzeczne o przebiegu NE–SW dzielą obie podjednostki na kilka bloków. Między Czarnym Potokiem a Słotwinami wąski półrów tektoniczny towarzyszy uskokowi słotwińskiemu. W okolicach Krynicy notowane były w latach 1992–1993 wstrząsy sejsmiczne. Epicentra tych wstrząsów grupują się wzdłuż uskoków poprzecznych o orientacji NW–SW oraz dyslokacji krynickiej.
Źródło:
Annales Societatis Geologorum Poloniae; 2007, 77, No 1; 69-92
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SHRIMP U-Pb zircon chronology of the Polish Western Outer Carpathians source areas
Autorzy:
Budzyń, B.
Dunkley, D. J.
Kusiak, M. A.
Poprawa, P.
Malata, T.
Skiba, M.
Paszkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/191475.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
zircon
U-Pb geochronology
ion microprobe
provenance
Carpathians
Opis:
The Western Outer Carpathians flysch of Poland comprises clasts of crystalline rocks representing source areas that supplied sedimentary basins with clastic material. Zircon from quartz syenite and granite cobbles representing the Silesian Ridge, the currently unexposed source area located at the southern margin of the Silesian Basin, yielded uniform U-Pb dates of 604š6 Ma and 599š6 Ma. These are interpreted as the age of igneous crystallization. Similarly, zircon from a gneiss cobble derived from the northern source terrain gave 610š6 Ma date, which is interpreted as the age of crystallization of the granitic protolith to the gneiss. The Neoproterozoic magmatism is interpreted to have occurred at the Gondwana active margin.
Źródło:
Annales Societatis Geologorum Poloniae; 2011, 81, No 2; 161-171
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
K-Ar dating of bentonite diagenesis in accretionary-wedge turbidites : case study from Western Outer Carpathians
Autorzy:
Świerczewska, A.
Paul, Z.
Banaś, M.
Tokarski, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/191676.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Bentonites
illite-smectite
K-Ar dating
accretionary-wedge turbidites
Western Outer Carpathians
Opis:
Sixteen bentonite layers of Eocene–Oligocene age were sampled at thirteen sites in accretionary-wedge turbidite sequences, in the three innermost nappes of the Western Outer Carpathians. K-Ar dating was carried out for five of these layers to obtain the maximum burial ages. All of the ages obtained are older than the stratigraphic ages of the host strata. This relationship is due to significant contamination of the bentonites with non-authigenic minerals. This contamination resulted from rapid sedimentation during synsedimentary folding, which is a common feature in accretionary wedges. It follows that the K-Ar dating of bentonite layers in the turbidite sequences of accretionary wedges should be largely restricted to the very distal facies of turbidites or to pelitic intercalations within the turbidites.
Źródło:
Annales Societatis Geologorum Poloniae; 2015, 85, 1; 177-185
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The structure of the Silesian Beskid Block in the Vistula River source area in the Western Outer Carpathians (southern Poland)
Autorzy:
Sikora, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/24201046.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Lineaments
hidden fracture zone
structural analysis
Szczyrk Anticline
Silesian Beskid Block
Outer Carpathians
Opis:
This paper presents new results of a detailed structural analysis of the bedrock of the Vistula source area within the Silesian Beskids (Outer Western Carpathians, S Poland). The bedrock of the study area is composed of the Upper Cretaceous flysch series of the Upper Godula Beds and Lower Istebna Beds. The study area is located on the southern limb of the Szczyrk Anticline within the Silesian Beskid Block. The research is based on cartographic field work and remote sensing analysis of a digital elevation model from LiDAR data. The structural analyses were supported by the extraction of the topolineaments and their spatial analysis. The results presented show that the monoclinal bedrock structure of the study area can be characterized by a systematic joint pattern, which determined the existence of faults and fault zones. Moreover, detailed analyses show differences in fracturing of the sedimentary strata and the existence of hidden fracture zones, not visible in the previous map view. Most of the faults are related to an orthogonal joint system, whereas the transverse and longitudinal faults are connected with fold and thrust structures that are exposed in outcrops and reflected in the topography. Kinematic analysis shows that the NW–SE-trending transverse faults underwent dextral movements, while the ENE–WSW-trending longitudinal faults recorded sinistral displacements. Furthermore, older strike-slip and oblique-slip displacements along faults were overprinted by normal dip-slip faulting. The new tectonic and relief data show no existence of the Gościejów Syncline in the northern part of the study area, which was depicted on previous maps. In conclusion, normal faulting and damage of the bedrock along fracture zones are interpreted as being related to the posttectonic, gravitational collapse of the rock massif. Its detailed recognition is very important for the further study of relationships between bedrock structure and mass movement characteristics, such as the geometry and kinematics of landslides.
Źródło:
Annales Societatis Geologorum Poloniae; 2023, 93, 2; 137--163
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Type locality of the Mutne Sandstone Member of the Jaworzynka Formation, Western Outer Carpathians
Locus typicus ogniwa piaskowców z mutnego formacji z Jaworzynki w polskich Karpatach zewnętrznych
Autorzy:
Cieszkowski, M.
Golonka, J.
Waśkowska-Oliwa, A.
Chodyń, R.
Powiązania:
https://bibliotekanauki.pl/articles/191712.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Mutne Sandstone Member - a new formal lithostratigraphic unit
Jaworzynka Formation
lithostratigraphy
biostratigraphy
deep-water agglutinated foraminifera
Cretaceous-Palaeocene
Magura Nappe
Western Flysch Carpathians
Opis:
The Mutne Sandstone Member occurs within the Jaworzynka Formation of the Magura Nappe depo- sits, typical for the western marginal Siary subunit. In the area north of Jeleśnia it is represented by the thick sand- stone complex. Typical and complete profile of this division is located in Mutne village next to Jeleśnia, on the slope of Janikowa Grapa Mt. This locality represents the type section for the Mutne Sandstone Member, while three others: Jaworzynka, Rychwałdek and Kuków-Rzyczki serve as reference sections. The age of the Mutne Sandstone Member was determined as Maastrichtian-Palaeocene; but only Maastrichtian is documented by foraminiferal assemblages. The Palaeocene age comes however from the superposition of this lithosom within the Magura Nappe profile. The Campanian/Maastrichtian-Palaeocene complex of Siary Subunit deposits provides the perfect example for application of supersequences to the Western Flysch Carpathian basin. It fits the Upper Zuni IV supersequence and global time slice. The Mutne type locality is also a prime geotourist attraction and object of inanimated nature proposed for protection.
Źródło:
Annales Societatis Geologorum Poloniae; 2007, 77, No 3; 269-290
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Berriasian ammonites from the Štramberk Limestone in the Kotouč Quarry (Outer Western Carpathians, Czech Republic)
Autorzy:
Vašíček, Z.
Skupien, P.
Powiązania:
https://bibliotekanauki.pl/articles/191726.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
ammonites
Berriasian
Štramberk area
Outer Western Carpathians
Opis:
Over 100 ammonites were collected from a block of bedded shallow-water Štramberk Limestone at a new location at the Kotouč Quarry, near Štramberk (Silesian Unit, Czech Republic). Berriaselline neocomitids, including Berriasella jacobi, B. oppeli, Tirnovella allobrogensis, T. cf. allobrogensis, Delphinella consanguinea, Pseudosubplanites cf. grandis and Malbosiceras cf. asper, are the most abundant species in this ammonite association. The olcostephanitid, Spiticeras blancheti, is rare. The index species for the Early Berriasian, B. jacobi, occurs in large numbers. On the basis of the present study, the upper boundary of the stratigraphic range of the Štramberk Limestone in the type area is dated as early Berriasian (ammonite Berriasella jacobi Zone). Ammonites with ages younger than early Berriasian have never been found in the Štramberk area. The deposition of the Štramberk Limestone in the Štramberk area came to an end during that period.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 4; 329-342
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evidence for differential crustal uplift between the neighbouring Kamienica and Ochotnica river valleys in the Polish Outer Western Carpathians
Autorzy:
Olszak, J.
Powiązania:
https://bibliotekanauki.pl/articles/191477.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
strath terraces
neotectonics
Outer Western Carpathians
Polska
Opis:
Young tectonic movements in the Carpathians, both vertical and horizontal ones, display local varia- tions. The Dunajec River valley is one of the areas where this differentiation has been documented best. New data on differentiated tectonic uplift, based on the study of changing elevations of five levels of fluvial strath terraces, were obtained in the lowermost reaches of two Dunajec’s tributaries: Kamienica and Ochotnica. The results indicate a change in the rate of valley bottom incision during the Pleistocene. Initially, the rate of incision was higher in the Kamienica River valley during ca. 600–350 ka BP. Later, since ca. 130 ka BP until now, the proportion became reversed and the rate of incision was nearly twice as fast in the Ochotnica River valley than in the Kamienica River valley. This is probably related to the mobility of the overthrust of the Krynica slice onto the Bystrica slice, both building the inner portion of the Magura Nappe. Reactivation of this thrust may be a result of neotectonic activity of large-scale faults situated at the depths of 5–20 km and possibly rooted in the Palaeozoic– Mesozoic basement.
Źródło:
Annales Societatis Geologorum Poloniae; 2009, 79, No 2; 187-193
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bentonitized tuffites in the Lower Eocene deposits of the Subsilesian Unit (Western Outer Carpathians, Poland): lithology, stratigraphic position and mineral composition
Zbentonityzowane tufity w dolnoeoceńskich osadach jednostki podśląskiej (polskie Zachodnie Karpaty Zewnętrzne): litologia, pozycja stratygraficzna i skład mineralny
Autorzy:
Cieszkowski, M.
Środoń, J.
Waśkowska-Oliwa, A.
Leśniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/191629.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Polish Outer Carpathians
Subsilesian unit
Early Eocene
bentonitized tuffites
foraminiferal assemblages
Opis:
New occurrences of bentonitized tuffites were described from numerous outcrops of the Lower Eocene flysch rocks of the Subsilesian Unit. These deposits crop out in the Żywiec tectonic window and in the tectonic windows of the Lanckorona - Żegocina Structural Zone. The bentonitized tuffites, composed of almost pure dioctahedral motmorillonite, form numerous thin layers and laminae, only occasionally exceeding 5 cm. The age of the tuffites is estimated as the Early Eocene (Glomospira div. sp. and Saccamminoides carpathicus zones) on the basis of foraminiferal assemblages. They occur in the upper part of green shales and in the lower part of the Lipowa beds that consist mainly of muddy turbidites represented by green or green-brownish shales with rare intercalations of sandstones. The sedimentary sequences with the tuffite intercalations form a lithostratigraphic level in the Subsilesian Unit called in the present paper "the Glichów Tuffite Horizon". This tuffite horizon could probably be correlated with deposits of similar age containing tuffites which are known from the Magura, Silesian and Skole nappes.
Źródło:
Annales Societatis Geologorum Poloniae; 2006, 76, No 2; 197-214
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Piping in loess-like and loess-derived soils : case study of Halenkovice site, Czech Republic
Autorzy:
Bíl, M.
Kubeček, J.
Powiązania:
https://bibliotekanauki.pl/articles/191487.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
soil piping
subsurface flow
Outer Western Carpathians
Czech Republic
Opis:
The soil piping that occurs on luvisols in the vicinity of the village of Halenkovice was studied for 5 years. These piping phenomena can only be found where arable land meets the forest or a belt of shrubbery. If there is a scarp in the locality, which usually changes from 6° in the field to approximately 30° in the forest, soil pipes are more likely to occur. Before the scarp, the slope flattens out and it is almost horizontal. This factor makes it possible for the overland flow to seep into the slope. This seepage results in soil piping, which is formed in loess loam and colluvial deposits. There are about 15 sites in the vicinity of the village of Halenkovice, where soil piping occurs. In one of them, Halenkovice 1 (an area of 900 m2) we closely studied 47 partial cavities. Their internal volume is 3.8 m3. The volume of the sink holes is 23 m3. There are two types of soil pipes – vertical, which on average tend to be shorter (40 cm) and lead the water under the surface, and soil pipes parallel with the slope, which are on average 81 cm long. Water flows through the pipes during a thaw or precipitation, which often takes away the top soil. The intensity of this process depends on the intensity of precipitation, which occurs outside the growing season, when there are no crops in the fields.
Źródło:
Annales Societatis Geologorum Poloniae; 2012, 82, 1; 45--50
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent discoveries of Tithonian ammonites in the Štramberk Limestone (Kotouč Quarry, Outer Western Carpathians)
Autorzy:
Vašíček, Z.
Skupien, P.
Powiązania:
https://bibliotekanauki.pl/articles/191481.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
ammonites
Richterella
Tithonian
Štramberk area
Silesian unit
Czech Republic
Opis:
Recent discoveries of ammonites in the Štramberk Limestone in the type area of their occurrence near the town of Štramberk supplement existing data on the Tithonian age of the limestones. Franconites cf. fascipartitus occurs in the lower part of the Lower Tithonian (Neochetoceras mucronatum Zone). Lemencia ciliata has a zonal character in the upper part of the Lower Tithonian. Richterella richteri is a subzonal species of the upper part of the Lower Tithonian in the Mediterranean and Submediterranean areas (Semiformiceras fallauxi Zone). All of the new discoveries are referable to the faunal associations of the Submediterranean bioprovince, and are in agreement with existing knowledge of it. Sexual dimorphism was seen in the genus Richterella, with the recognition of both macroconchs and microconchs in the type species of Richterella, i.e. R. richteri. The stratigraphic position of these recent ammonite discoveries in the Štramberk Limestone at the Kotouč Quarry does not support the stratigraphy of the limestones based on the distribution of calpionellids, as previously assumed by other authors. The recent collection of ammonites confirms that the Štramberk Limestone belongs to the lower Tithonian and lower Berriasian and also represents the lower Tithonian as a shallow-water facies.
Źródło:
Annales Societatis Geologorum Poloniae; 2014, 84, 2; 131-141
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedimentology of the Godula Formation in the Moravskoslezské Beskydy Mts. (Outer Western Carpathians, Czech Republic)
Autorzy:
Maceček, Lukáš
Powiązania:
https://bibliotekanauki.pl/articles/1835969.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
facies analysis
turbidite systems
siliciclastic deposits
Outer Western Carpathians
Moravskoslezské Beskydy Mts.
Cretaceous
Opis:
The present account summarizes the results of lithological and facies analysis of representative sections of the Godula Formation, in order to contribute to the understanding of the lithofacies structure of this formation, the processes involved in its development and the character of the depositional environment. The sedimentology of different parts of the Godula Formation was investigated in six representative sections in the western and central parts of the Moravskoslezské Beskydy Mts. The Godula Formation is made up mainly of Upper Cretaceous siliciclastic turbidites and was formed during the most significant depositional phase of the filling of the deep-sea Silesian Basin. On the basis of sedimentological research, five facies classes (including four subclasses) were defined: 1) conglomeratic sandstones, 2) sandstones, 3) sandstones with mudstones, 4) mudstones with sandstones and siltstones, and 5) mudstones with siltstones. The methodology of facies analysis allowed the identification of several facies association, corresponding to the medial and distal parts of a turbidite fan and associated siliciclastic apron. The facies of depositional lobes, lobe transitions and the apron are described. The sandstone and mudstone facies (F3) occurs mostly in the depositional lobes. The sandstone facies (F2) and mudstone with sandstone and siltstone facies (F4) are present only to a lesser degree. The facies of the lobe transitions include lithologic associations of the lobe fringe and channel levee environments. They comprise mainly the mudstones with sandstones and siltstones (F4) and the mudstone with siltstone facies (F5). In the apron deposits, the sandstone facies (F2) and the conglomeratic sandstone facies (F1) predominate. Palaeocurrent analysis from measurements made in selected profiles showed that in the Moravskoslezské Beskydy Mts., the dominant direction of sediment transport was from SW to NE. After applying correction of the known counterclockwise rotation of the nappes of the Outer Carpathians, this corresponds to a longitudinal direction along the original axis of the basin.
Źródło:
Annales Societatis Geologorum Poloniae; 2021, 91, 3; 309-325
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new find of mammoth tusk in loess-like sediments of the Zakliczyn Basin (Outer Western Carpathians, Poland)
Autorzy:
Cieszkowski, M.
Zuchiewicz, W.
Alexandrowicz, W. P.
Wojtal, P.
Powiązania:
https://bibliotekanauki.pl/articles/191972.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
loesses
mammoth remains
malacofauna
Upper Pleistocene
Polish Outer Carpathians
Opis:
In June 2007, in a valley side of a small stream close to Janowice in the Western Outer Carpathians of Poland, a 1.8 m long mammoth tusk was found within loamy-debris solifluction sediments, ca. 1 m thick. These discordantly overlie a 4-m-high strath built up of steeply dipping sandstones of the Krosno beds of the Skole Nappe, being in turn covered by 7.5-m-hick loessial silts and loess-like slopewash sediments. The latter are overlain at the top by another solifluction cover, ca. 1.5 m thick. The mammoth tusk belonged to an adult animal, probably 30-60 years old. The succession of malacofaunistic assemblages within loess-like sediments indicates a cold, polar climate, and an environment resembling tundra developed upon moderately moist substratum during the last glacial stage. The lower part of malacological sequence enriched in mesophile species probably refers to the Vistulian (Weichselian) interpleniglacial period. The middle part, indicative of more dry habitats, can be associated with the younger Pleniglacial, whereas the top part should represent the terminal phase of the latter. Sediments bearing the mammoth tusk were probably deposited at the turn of the Vistulian older Pleniglacial and Interpleniglacial time.
Źródło:
Annales Societatis Geologorum Poloniae; 2010, 80, No 1; 89-99
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geological control on the Osława River meander at Duszatyn, Western Bieszczady Mountains, Polish Outer Carpathians
Autorzy:
Margielewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/191585.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
neotectonics
structural control
Quaternary alluvium
Osława River
Western Bieszczady Mountains
Polish Outer Carpathians
Opis:
At Duszatyn village (Western Bieszczady Mts.), the Osława River forms an unique meander loop which is not typical for the mountainous area. Detailed analysis has shown that this landform was created due to the evolution of two left-hand tributaries of the Osława River during the formation of its regressive water-gap. These processes were determined by mass movements which have strongly stimulated the fluvial system. The origin of the Osława River meander was largely controlled by lithological differences in rock resistance, orientation of the joint pattern, as well as the presence of bordering oblique and thrust faults which have had a bearing on the diversified neotectonic uplift of the area.
Źródło:
Annales Societatis Geologorum Poloniae; 2004, 74, No 3; 325-338
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contrasting styles of siliciclastic flysch sedimentation in the Upper Cretaceous of the Silesian Unit, Outer Western Carpathians : sedimentology and genetic implications
Autorzy:
Strzeboński, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2134836.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Carpathian flysch
debrites
deep-sea deposits
depositional system
gravitational resedimentation
Silesian Basin
tractionites
turbidites
Late Cretaceous
Opis:
This study reports on a new set of sedimentological data and related interpretations of the Santonian–Campanian siliciclastic deposits in the Western Flysch Carpathians based on natural outcrops in the uppermost Godula Formation and lowermost Istebna Formation. The rationale was to confront the characteristics of this flysch succession with current controversies and state of knowledge on deep-water clastic sedimentation. The sedimentological analysis of the field data allowed for multi-scale synthetic classifications of the depositional components in the investigated flysch. The hierarchical and practical nature of the suggested classification schemes allows for their application to similar deposits in other regions. The siliciclastic deposits are products of gravity-driven terrigenous sediment redeposition via submarine slumps, debris flows, and turbidity currents. Sediment reworking by tractional bottom currents is considered as an accompanying factor. Point-sourced turbiditic fan lobe fringes from the submarine piedmont ramp and linearly supplied debritic covers along the slope apron are proposed as dominant. The innovative linking between the textural-structural descriptive features of the deposits and the critical determinants of specific sediment gravity-flow processes and architectural elements of the deepwater clastic depositional systems is a significant contribution to this research field.
Źródło:
Annales Societatis Geologorum Poloniae; 2022, 92, 2; 159--180
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Precambrian and Palaeozoic basement of the Carpathian Foredeep and the adjacent Outer Carpathians (SE Poland and western Ukraine)
Autorzy:
Buła, Z.
Habryn, R.
Powiązania:
https://bibliotekanauki.pl/articles/191447.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
basement
Carpathians
Carpathian Foredeep
East European Platform
Trans-European Suture Zone
south-eastern Poland
Western Ukraine
Opis:
In south-eastern Poland and western Ukraine, the Outer Carpathian orogen and the Carpathian Foredeep developed in the foreland of the East-European Platform (Baltica). The area consists of a number of tectonic units included in the Trans-European Suture Zone (TESZ): the Łysogóry–Radom and Małopolska blocks in the territory of Poland, and the Rava Rus’ka Zone, Kokhanivka Zone and Leżajsk Massif in the Ukraine. The development of the TESZ began in the (?Middle) Late Neoproterozoic and was associated with rifting processes taking place along the western edge of the East-European Craton (Baltica) during the break-up of the Rodinia/ Pannotia supercontinent. The passive margin of Baltica evolved into the TESZ during collisional and/or strike-slip movements. In the TESZ (Małopolska Block and Leżajsk Massif), Ediacaran flysch-type siliciclastics were affected by weak metamorphism and folding during the Cadomian orogeny. The development of Cambrian deposits in the East-European Craton, Łysogóry–Radom Block, northeastern part of the Małopolska Block (Kielce Fold Belt) and in the Rava Rus’ka and Kokhanivka zones was associated with the post-rift thermal subsidence. Tectonic movements (so-called Sandomierz phase), which occurred probably due to an oblique collision of the Małopolska Block (included into the passive margin of Baltica) and the East-European Craton during late Middle Cambrian to Late Cambrian (possibly also Early Ordovician) times, resulted in the following: (1) development of stratigraphical (?erosional) gaps in the Middle and Upper Cambrian sections of the Lublin–Podlasie slope of the East-European Craton and the Kielce Fold Belt in the Małopolska Block; (2) intense tectonic subsidence of the Łysogóry–Radom Block during the deposition of Middle and Upper Cambrian sediments; (3) development of compressional folds in the Lower Cambrian to lower Middle Cambrian deposits of the Kielce Fold Belt on the Małopolska Block. Ordovician–Silurian series were deposited in a typical flexural foredeep basin, in which subsidence and deposition rates accelerated during Late Silurian (Ludlow–Pridoli) and Early Devonian (Lochkovian) times. It is postulated that the present position of the Małopolska Block relative to the Łysogóry–Radom Block and East-European Craton resulted from post-Silurian dextral movements between the Małopolska Block and the East-European Craton. Devonian–Carboniferous deposits occur only in the Małopolska Block located in the Variscan foreland. The Middle-Late Devonian and Early Carboniferous shallow-marine carbonate platforms developed under an extensional regime. The siliciclastic Upper Visean–Lower Namurian A Culm series were deposited in the flexural Variscan foreland basin. During the Late Namurian A, the Małopolska Block was uplifted in response to the build-up of compressional foreland stresses. During post-Carboniferous times, the Precambrian and Palaeozoic deposits were subject to erosion and restructuring during the Alpine orogeny.
Źródło:
Annales Societatis Geologorum Poloniae; 2011, 81, No 3; 221-239
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 17

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