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Wyszukujesz frazę "Polish basin" wg kryterium: Temat


Tytuł:
The Polish Basin - relationship between the crystalline consolidated and sedimentary crust
Autorzy:
Dadlez, R.
Powiązania:
https://bibliotekanauki.pl/articles/2058932.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Mid-Polish Trough
Polish Basin
sedimentary crust
consolidated crust
crystalline crust
Opis:
In the area of the Polish Basin five deep seismic sounding profiles, recorded during 1991–1997, were used to compare the structure of the crystalline and consolidated crusts with that of the sedimentary cover. Repeated reactivation of deep crustal fractures controlled the thickness distribution and development of faults in Palaeozoic andMesozoic sequences.NW–SE toWNW–ESE basin-parallel and transverse N–S to NE–SW striking fracture systems are evident. The former includes the isseyre–Tornquist Zone that marks the profound crustal boundary between the East European Craton and the typical Trans-European Suture Zone (TESZ) crust that is characterized by a variably thick consolidated upper crustal layer, composed of Caledonian-deformed Early Palaeozoic and possibly Vendian sediments, and defines the NE boundary of the Permian and Mesozoic Mid-Polish Trough (MPT). Its northwestern TTZ segment was intermittently active throughout the whole geological history of the area. The SWboundary of the TESZ, marked by the Dolsk Fault across which the consolidated crustal layer is replaced by a crystalline Variscan upper crust, is only evident on profiles LT-7 and P4. The deformation front of the Variscan Externides is located some 100 km to the NE of the Dolsk Fault within the confines of the TESZ crust. On profiles TTZ-PL and P2, significant lateral changes in the thickness of the consolidated and crystalline crust of the Pomeranian, Kuiavian and Holy Cross Mts. segments of the MPT are noted that coincide with the transverse Bydgoszcz-Poznań-Toruń and Grójec fault zones. These crustal changes are associated with substantial changes in the composition and thickness of supracrustal sedimentary sequences and the degree of inversion of the MPT.
Źródło:
Geological Quarterly; 2006, 50, 1; 43-58
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal lithosphere across the Trans-European Suture Zone in Poland
Autorzy:
Majorowicz, J. A.
Powiązania:
https://bibliotekanauki.pl/articles/2058766.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Polish Basin
Trans-European Suture Zone
thermal lithosphere
heat flow
Opis:
Significant lateral variations of surface heat flow occur in the Polish Lowland area, ranging up to 30+/–10 mW/m2 across the transition from the East European Craton (EEC) and the northeastern part of the Teisseyre-Tornquist Zone (TTZ) to the accreted terranes in the south-west (Palaeozoic Platform) and up to 25 mW/m2 of change within the Trans-European Suture Zone (TESZ). Modelling of the crustal temperatures for the deep seismic profiles parallel to TESZ (P1, P5 and TTZ) and perpendicular to it (LT-7, P2, LT-2, P4, LT-4 and LT-5) shows evidence of extensive crustal-mantle warming (elevated mantle heat flow in the area between the Sudetes and the EEC). The EEC and the northern part of the TTZ have a much lower mantle heat contribution. Mantle heat flow variations are significant (approximately 20–40 mW/m2). Significant are also variations in thermal lithosphere thickness ranging from ca. 150–200 km in the craton and the northern part of the TTZ to 100–150 km (locally less than 100 km) in the accreted terranes to the south-west of the TTZ and in the central part of the TTZ. The TTZ is a thermally inhomogeneous zone.The thermal transition between the Palaeozoic Platform and the EEC is not a sharp one. Significant variations in the thickness of the thermal lithosphere do not follow major tectonic units of the crust.
Źródło:
Geological Quarterly; 2004, 48, 1; 1--14
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kaolinite peaks in early Toarcian profiles from the Polish Basin-an inferred record of global warming
Autorzy:
Brański, P.
Powiązania:
https://bibliotekanauki.pl/articles/2059043.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Lower Toarcian
Ciechocinek Fm.
Polish Basin
kaolinite content
palaeoclimate
global warming
Opis:
In lower Toarcian clay deposits (Ciechocinek Fm., VIII depositional sequence of the Lower Jurassic) from three boreholes from the Polish Basin, illite-dominated sedimentation representing the lower part of studied interval was interrupted by enhanced kaolinite input. Levels of high kaolinite/illite ratio at the VIIIb/VIIIc parasequence boundary suggest strong continental weathering in a humid-subtropical to tropical climate related to the phase of the early Toarcian global warming recorded at the top of the tenuicostatum Zone and correlated with isotope curves from a number of European sections. Kaolinite enrichment may be locally enhanced by reworking ofpre-Jurassic kaolinitic rocks and differential settling. Diagenetic processes were not sufficient enough to transform the initial kaolinite,but may have altered smectite and mixed-layers into illite and/or chlorite.
Źródło:
Geological Quarterly; 2010, 54, 1; 15-24
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rare earth elements distribution in fine-grained deposits from the uppermost Triassic and Lower Jurassic of the Polish Basin : provenance and weathering of source area
Autorzy:
Brański, P.
Mikulski, S. Z.
Powiązania:
https://bibliotekanauki.pl/articles/2059878.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
rare earth elements (REE)
provenance
palaeoweathering
uppermost Triassic
Lower Jurassic
Polish Basin
Opis:
Nineteen samples of uppermost Triassic and Lower Jurassic claystones and mudstones, which were formed in the epicontinental Polish Basin, were analysed by inductively coupled plasma mass spectrometry (ICP-MS) for rare earth elements (REE) and other selected trace elements (Sc, Y, Th, Zr and U). The results indicate that the source of most of the claystones and mudstones studied were sedimentary rocks of the upper continental crust of old cratonic areas, where the protolith had a mainly felsic character. However, in the latest Triassic a characteristic layer formed, implying significant input from mafic volcanic protolith. It was also found that moderately intense chemical weathering usually favoured increased concentration of the rare earths. Extremely strong hydrolysis, related to episodes of very hot and humid climate (greenhouse events), caused conspicuous impoverishment in REE in residual clays. Weathering and recycling processes modified the composition of REE to some extent, but generally did not obliterate the original characteristics of the protolith. In some samples, enrichment in rare earth elements was observed, caused by admixtures of accessory minerals (being a main carrier of REE) and/or increased sorting during recycling.
Źródło:
Geological Quarterly; 2016, 60, 2; 441--450
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrocarbon generation modelling in the Permian and Triassic strata of the Polish Basin: implications for hydrocarbon potential assessment
Autorzy:
Botor, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/31342965.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
hydrocarbon potential
kerogen transformation ratio
thermal maturity modelling
Polish Basin
Permian
Triassic
Opis:
Hydrocarbon generation in the Zechstein Main Dolomite and Upper Triassic potential source rocks of the Polish Basin was investigated by 1-D thermal maturity modelling in 90 boreholes across the basin. This identified major zones potentially worthy of further exploration efforts. The maximum burial depth of the Zechstein Main Dolomite and Upper Triassic reached >5 km during the Late Cretaceous leading to maximum thermal maturity of organic matter. Hydrocarbon generation development reveals considerable differences between particular zones of the Zechstein Main Dolomite and Upper Triassic. The kerogen transformation ratio (TR) in the Zechstein Main Dolomite reached values approaching 100% along the basin axis. The TR in the Upper Triassic source rocks is generally lower than in the Zechstein Main Dolomite due to lesser burial. The Upper Triassic source rocks have the highest TR values (>50%) along the basin axis, in the area between boreholes Piła IG 1 and Piotrków Trybunalski IG 1, with the most pronounced zone in the Krośniewice Trough (i.e., between the Krośniewice IG 1 and Budziszewice IG 1 boreholes), where the TR reached >90%. The Zechstein Main Dolomite and Upper Triassic entered the oil window in the Late Triassic to Early–Middle Jurassic, respectively. Hydrocarbon generation continued until the Late Cretaceous, and was completed during tectonic inversion of the basin.
Źródło:
Geological Quarterly; 2023, 67, 2; art. no. 20
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climatic disaster at theTriassic–Jurassic bound ary – a clay minerals and major elements record from the Polish Basin
Autorzy:
Brański, P.
Powiązania:
https://bibliotekanauki.pl/articles/2059743.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Triassic–Jurassic boundary
clay minerals
major elements
weathering regime
palaeoclimatic shifts
Polish Basin
Opis:
The Triassic-Jurassic boundary interval (ca. 201 Ma) was a time of sudden global environmental changes triggered by Pangea breakup and Central Atlantic Magmatic Province development. The bulk-rock mineralogy, clay mineralogy and major element geochemistry of 87 continental mudrock samples collected from four borehole cores yield information on Rhaetian-earliest Hettangian palaeoclimatic changes in the Polish Basin. During the Rhaetian, smectite preponderance was replaced by kaolinite and illite domination. This fundamental shift in clay mineral assemblages (supported by major element data) indicates very significant change in climate humidity. Moreover, some beds in the Zagaje Formation (Upper Rhaetian-Lower Hettangian) are particularly rich in kaolinite indicating extreme chemical weathering in humid-subtropical to tropical climate episodes in the aftermath of powerful warming and abundant rainfall. Importantly, the first distinct kaolinite enrichment appears already in the Lower Rhaetian Wielichowo Beds. In addition, abrupt and episodic shifts in the kaolinite-illite ratio and in values of weathering indices point to profound climate destabilisation and a sequence of frequent, catastrophic climatic reversals in the Late Rhaetian and at the Triassic-Jurassic boundary. These results are generally consistent with carbon isotope records in sections worldwide.
Źródło:
Geological Quarterly; 2014, 58, 2; 291--310
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas generation in Carboniferous source rocks of the Variscan foreland basin : implications for a charge history of Rotliegend deposits with natural gases
Autorzy:
Botor, D.
Papiernik, B.
Maćkowski, T.
Reicher, B.
Kosakowski, P.
Machowski, G.
Górecki, W.
Powiązania:
https://bibliotekanauki.pl/articles/191802.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Polska
Polish basin
organic matter
hydrocarbon potential
petroleum source rock
maturity modelling
gas generation
Opis:
Numerical modelling of the Carboniferous–Permian petroleum system in the Polish Basin was carried out using PetroMod software. The Carboniferous source rocks contain organic matter mostly of a humic nature (gas-prone Type III kerogen). Subordinately, only in the Lower Carboniferous deposits, kerogen of algal marine origin and mixed Type II/III kerogen occur. The quantity of dispersed organic matter is variable, but usually below 2% TOC. In the Carboniferous section, a progressive increase in the maturity of organic matter with depth was observed, from approximately 0.5% Rr at the top of the Westphalian in marginal parts of the Carboniferous basin to over 5.0% Rr at the bottom of the Lower Carboniferous in the eastern Fore-Sudetic Homocline. The thermo- genic generation of hydrocarbons continued from the late Westphalian (eastern Fore-Sudetic Homocline and partly Pomerania) throughout the Mesozoic, up to the Late Cretaceous. The advancement of this process is va- riable in different parts of the Carboniferous basin, reaching up to 100% of kerogen transformation in the zones of maximum maturity of organic matter. However, the most intensive periods of gas generation and migration were the Late Triassic and the Late Jurassic. The most prospective areas are located NE of Poznań–Kalisz line and SW of Poznań.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 4; 353-383
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geneza i ewolucja polskiego basenu czerwonego spągowca
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/1204877.pdf
Data publikacji:
1999
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
polski basen
czerwony spągowiec
analiza basenów sedymentacyjnych
stratygrafia
paleogeografia
system naftowy
Polish Basin
Rotliegend
basin analysis
stratigraphy
palaeogeography
petroleum play
Opis:
Polski basen czerwonego spągowca (PBCS) jest częścią wielkiego basenu sedymentacyjnego zwanego południowym basenem permskim, leżącym w zachodniej i centralnej Europie. Historia rozwoju polskiego basenu czerwonego spągowca rozpoczęła się na przełomie karbonu i permu. Jednak w jego rozwoju można odnaleźć pewne elementy zakorzenione w już przedpermskim paleozoiku. Rozwój sedymentacji w polskim basenie czerwonego spągowca był kontrolowany głównie przez tektonikę i klimat. Wyraźna zmiana klimatyczna, z warunków wilgotnych na suche, nastąpiła dopiero w górnym czerwonym spągowcu (i to nie w jego najniższej części). Ruchy tektoniczne zaznaczały się natomiast poprzez tworzenie miąższych kompleksów zlepieńców. Takie spojrzenie na opracowywaną sukcesję osadów czerwonego spągowca umożliwiło wyróżnienie kilku sekwencji. Ewolucja polskiego basenu czerwonego spągowca nie skończyła się wraz z transgresją cechsztyńską. Wypełnienie PBCS podlegało dalszej ewolucji związanej z rozwojem polskiego basenu permsko-mezozoicznego. Aby móc śledzić ewolucję wypełnienia PBCS wykonano dla tego obszaru analizę historii pogrążania i analizę historii termicznej. Historia subsydencji basenu polskiego na omawianym obszarze pokazuje, że okres późnego permu i triasu były główna fazę ryftowania, a późniejszy rozwój basenu wynika głównie z relaksacji termicznej. Analizując historię termiczną basenu polskiego widać, że w czerwonym spągowcu występowały tam wielkie anomalie geotermiczne. Anomalie te charakteryzowały się wysoką wartością strumienia cieplnego (100-150 mWm-2) w czasie późnego permu i triasu. Tak wysokie wartości odpowiadają przeważnie synryftowemu etapowi rozwoju basenu. W czasie późnego triasu i jury wystąpiło pewne schłodzenie pola cieplnego, ale punktem zwrotnym w historii termicznej basenu polskiego było pogranicze jury i kredy, kiedy południowo-zachodnia część omawianego basenu została znacznie wyniesiona i zerodowana. Wtedy to wartość powierzchniowego strumienia cieplnego w południowo-zachodniej Polsce istotnie zmalała, a wyraźne cechy termiczne poprzedniej epoki zostały zatarte. Występowanie złóż gazu w osadach czerwonego spągowca ograniczone jest do najwyższej części sekwencji osadowej. Skład gazu ziemnego wykazuje niekiedy znaczne zaazotowanie oraz istotne wzbogacenie w hel. Najwyższe koncentracje helu w gazie ziemnym, tak pod względem objętościowym jak i ilościowym, są zlokalizowane w tym samym miejscu, co permsko-jurajska wysoka anomalia geotermiczna i jednocześnie tutaj najpłycej występuje powierzchnia Moho w Polsce. Wyniki analizy historii pogrążenia i historii termicznej analizowanej części basenu polskiego, jak również konfiguracja powierzchni Moho i związane z nią anomalie paleogeotermiczne oraz wysokie koncentracje helu wskazują na asymetryczny model budowy basenu. Strefa wysokich anomalii paleogeotermicznych, rozciągająca się od obszaru między Wrocławiem i Poznaniem i dalej na zachód, była zapewne głównym obszarem ryftowania. Pierwszym etapem rozwoju polskiego basenu ryftowego był wulkanizm, a następnie sedymentacja w czasie czerwonego spągowca.
Źródło:
Polish Geological Institute Special Papers; 1999, 3; 1-93
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Triassic palaeogeography of NE Bohemian Massif based on sedimentological record in the Wleń Graben and the Krzeszów Brachysyncline (SW Poland)
Autorzy:
Kowalski, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/1836356.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
fluvial sedimentation
Buntsandstein
Polish Buntsandstein Basin
Triassic Germanic Basin
epi-Variscan cover
Bohemian Massif
Opis:
This paper presents a new sedimentological and palaeogeographic interpretation of the Early to Middle(?) Triassic continental deposits in the Wleń Graben and the Krzeszów Brachysyncline (Sudetes, SW Poland). These two tectonic subunits, located in the peripheral segments of the North Sudetic and Intra-Sudetic synclinoriums, respectively, represent the crucial elements for deciphering the post-Variscan palaeogeographic evolution of the NE termination of the Bohemian Massif. Sedimentological studies and facies analysis show that the Early Triassic siliciclastic deposition in both areas was dominated by fluvial sedimentation of the typical Buntsandstein facies within a gently sloping alluvial plain, locally followed by ephemeral lake environments in the late Early or Middle(?) Triassic. The lithofacies and the measured palaeocurrent directions indicate that the area was drained by braided streams flowing towards the northwest and north. Individual fluvial channels had depths not exceeding 1 m and widths of up to a few metres. Overbank deposits are poorly preserved due to the lateral shifting of channels. Based on available borehole data, an analysis of isopach maps was performed for the first time in the study areas. The study areas are presently separated by crystalline units devoid of sedimentary rocks, but the analysis indicate that they might have been in constant or periodical connection during the Triassic. It is concluded that the present-day extent of Triassic deposits is a result of the primary basin configuration combined with the Middle Triassic to Late Cretaceous erosion and post-Cretaceous tectonic uplift. The paper summarizes the present state of research on the continental Triassic preserved in the terminal parts of the North Sudetic and Intra-Sudetic synclinoriums, presents the first detailed sedimentological logs, and proposes new palaeogeographic interpretation. New findings include bioturbation structures, such as plant-root traces or tunnels formed by invertebrates and possible tetrapod footprints, which shed new light on the sedimentological interpretation of the continental Mesozoic deposits in the NE part of the Bohemian Massif.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 2; 125-148
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowa geologiczna oraz geneza i ewolucja bloku Gorzowa
Geology, origin and evolution of the Gorzów Block
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/2074804.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geologia regionalna
basen polski
Polska
geologia naftowa
tektonika
regional geology
Polish Basin
NW Poland
petroleum geology
tectonics
Opis:
From the beginning of geological investigations of the Polish Lowlands both the geological and the regional tectonic units were used simultaneously. The Szczecin-Gorzów Synclinorium should be distinguished in terms of tectono-structural rules. The Gorzów Block - as a geological unit - is defined on the basis of extent and differentiation of the Upper Cretaceous thickness or by distribution of local structures (mainly halotectonic and halokinetic ones) developed in the Zechstein-Mesozoic complex. Basement in the Gorzów Block area is uplifted in its consolidated part and also the top of Moho is elevated. Both uplifts are well correlated with the Permian-Mesozoic palaeogeothermal anomaly. The Gorzów Block incorporates also the north-western part of Wolsztyn Ridge which was active during the Permian-Mesozoic time. In the early Rotliegend time this area was characterized by volcanic activity. In the late Rotliegend it was a source for clastics deposited around the Wolsztyn Ridge. Also the carbonate platform facies of the Main Dolomite (Ca2) is associated with this uplifted area. The mentioned region is situated in the distal part of asymmetric, Polish rift basin. Development of basin analysis - as an interdisciplinary domain of the Earth Sciences - indicates the need of applying various geological units, adequate to the considering problem. Modern research methods in geology (computerization, GIS) enable the data bases creation for individual geological units necessary for study of their origin and evolution up to their present geological pattern.
Źródło:
Przegląd Geologiczny; 2010, 58, 8; 680-688
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regionalizacja tektoniczna Polski-Niż Polski
Tectonic subdivision of Poland: Polish Lowlands
Autorzy:
Karnkowski, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/2074565.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
regionalizacja tektoniczna
geologia regionalna
Polska
Niż Polski
niecka Polska
tektonika
podłoże
regional subdivision
regional geology
Polska
Polish Lowlands
Polish Basin
tectonics
basement
Opis:
Presented paper is a contribution to discussion about the tectonic regionalization in Poland. The Polish Lowlands, located between the Baltic shore and the highlands of the southern and central Poland, is the area discussed here. In this region mainly the Quaternary and the Neogene deposits with thickness rarely over 300 m are exposed. On the sub-Cenozoic surface occur mainly Cretaceous, Jurassic and Triassic rocks. Structural forms of the Polish Lowlands are directly associated with the Permian-Mesozoic Polish Basin inverted at the beginning of Cenozoic time. It is worthwhile indicating here that not only the Polish Trough was inverted but also the distal part of this basin, distinguished now as the Fore-Sudetic Monocline. Subdivision of the Polish Lowlands into tectonic units on the sub-Cenozoic surface was shown on Fig. 1. In the mid-Polish area antyclinorium belts of north-west to south-east orientation are located. The basement of the Polish Basin is built of the pre-Permian deposits, tectonized during pre-Alpine phases. To analyze the geology of Poland in the sub-Permian architecture the proper tectonic map (Fig. 2) is required with only the units of first order marked. Debate on tectonics of Poland requires also a map of basement consolidation units (Fig. 3). Indispensable completion of the presented maps is a geological cross-section of the Polish Lowlands (Fig. 4). It is clear that tectonic regionalization of Poland (with special attention to the Polish Lowlands) should be demonstrated on the three basic maps here presented. Spatial (both horizontal and vertical) relations between tectonic units should be considered in the light of sedimentary basin analysis, i.e., searching processes and stages of the structural evolution which essentially contributed to the recent tectonic diversification in regional geology.
Źródło:
Przegląd Geologiczny; 2008, 56, 10; 895-903
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skały osadowe czerwonego spągowca w wierceniu Kutno 2 w warunkach postulowanego jurajskiego wydarzenia termicznego oraz wysokich nadciśnień : studium petrograficzne
Rotliegend sedimentary rocks in the Kutno 2 well under conditions of a postulated Jurassic thermal event and high overpressure : a petrographic study
Autorzy:
Kuberska, Marta
Kiersnowski, Hubert
Poprawa, Paweł
Kozłowska, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/2076191.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
basen spągowca polskiego
struktura Kutna
petrografia
termika
Polish Rotliegend Basin
Kutno structure
petrography
thermal history
Opis:
A highs ignifance of the Kutno 2 deep borehole is due to its location in the central zone of the Polish Basin where the Rotliegend complex has previously never been achieved by other drill holes and thus was not recognized and studied. Drill core from the Rotligend of the Kutno2 has been recently studied for its petrography and facies. The Rotligend in this zone is represented by fluvial and alluvial sediments. It is composed mainly of fine- to coarse-grained sandstones, with conglomerate inter beds. Diagenetic processes of the sediments have been dominated by mechanical and chemical compaction, as well as by transformation of the unstable mineral components. Fluid inclusion analysis for quartz and carbonates indicates that the diagenesis-associated temperature reached 120-180°C. The presence of haematite pseudomorphoses after framboidal pyrite indicates an extremely high palaeotemperature of approx. 500°C. Itis related here to the Jurassic hydrothermal event. The recent very high reservoir pressure might be associated with high temperatures due to the aqua thermal pressure mechanism.
Źródło:
Przegląd Geologiczny; 2021, 69, 6; 365--373
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zechstein marine deposits in the Wleń Graben (North Sudetic Synclinorium, SW Poland) : new insights into the palaeogeography of the southern part of the Polish Zechstein Basin
Autorzy:
Kowalski, A.
Durkowski, K.
Raczyński, P.
Powiązania:
https://bibliotekanauki.pl/articles/973706.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Polish Zechstein Basin
dolomites
Permian
Triassic
Transitional Terrigenous Series
PZt
North Sudetic Synclinorium
Wleń Graben
Opis:
This paper presents the results of sedimentological studies of Zechstein marine deposits occurring in the Wleń Graben, a tectonic unit located in the southeastern part of the North Sudetic Synclinorium (NSS; Western Sudetes, SW Poland). Owing to poor exposure, small thickness, and lack of palaeontological data, the stratigraphy and age of these rocks were determined solely on the basis of analogies with adjacent areas. New findings described here, including faunal remains (remains of bivalves, including Liebea sp.), geopetal structures, clastic fills of halite crystals, moulds and bioturbation, shed new light on the environmental interpretations of the Zechstein in this part of the NSS. It should be assumed that at least two types of deposit may be assigned to the marine Zechstein in the Wleń Graben area, namely sparitic and microsparitic dolomite (PZ3) and the overlying deposits of the heterolithic series (PZt). These deposits were formed during the late Zechstein transgression, when the study area was in the marginal southwesternmost part of a newly formed shallow-marine bay of the Polish Zechstein Basin. In the central part of the present-day Wleń Graben, a shallow-marine bay (lagoon?) was dominated by carbonate sedimentation. A north-dipping mud plain, periodically flooded by a shallow sea, occurred in the southern part of the area. The paper summarises the present state of research on Permian deposits in the Wleń Graben, the first comprehensive lithostratigraphic scheme is suggested, and a new concept of the palaeogeographic evolution of the area in the Early and Late Permian is proposed.
Źródło:
Annales Societatis Geologorum Poloniae; 2018, 88, 4; 321-339
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oil- and gas-bearing sediments of the Main Dolomite (Ca2) in the Międzychód region: a depositional model and the problem of the boundary between the second and third depositional sequences in the Polish Zechstein Basin
Autorzy:
Jaworowski, K.
Mikołajewski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2066024.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Polskie Zagłębie Cechsztyn
stratygrafia
dolomit główny
Polish Zechstein Basin
Main Dolomite
depositional model
sequence stratigraphy
Opis:
The Polish Zechstein Basin was a tideless sea dominated by storms. Main Dolomite deposits of the Miedzychód region were deposited: a) on the carbonate platform (in the environments of the outer barrier, inner barrier and high- and low-energy platform flat); b) on the platform slope; c) at the toe-of-slope; d) on the basin floor. The best reservoir properties are recorded in shallow-marine deposits of the outer and inner barriers and in deep-sea sediments of the toe-of-slope (turbidites and debrites). Rich reserves of crude oil and natural gas were discovered both on the carbonate platform (the Miedzychód and Grotów deposits) and at its toe-of-slope (the Lubiatów deposit). The Main Dolomite sediments are wholly included in the second depositional sequence (PZS2 sensu Wagner & Peryt, 1997). The maximum flooding surface of the PZS2 sequence within the platform, its slope and toe-of-slope, runs along the A1g/Ca2 boundary. In the basinal zone, its correlative equivalent is a hard ground observed within the Main Dolomite carbonate rhythmites. The boundary between the second and third (PZS2/PZS3) depositional sequences (corresponding to the ZS3/ZS4 sequence boundary in the German Basin) runs on top of the Main Dolomite carbonates (on the platform slope, at the toe-of-slope and on the basin floor) and above top of the Main Dolomite carbonates, within the lower part of the Basal Anhydrite (on the platform).
Źródło:
Przegląd Geologiczny; 2007, 55, 12/1; 1017-1024
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Paleogene-Neogene tectonic evolution of the lignite-rich Szamotuły Graben
Autorzy:
Widera, Marek
Stawikowski, Wojciech
Uścinowicz, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/138663.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Palaeozoic Platform
Polish Basin
salt diapirism
synsedimentary tectonics
lignite compaction
platforma paleozoiczna
basen polski
diapiryzm solny
wysad solny
tektonika synsedymentacyjna
zagęszczanie węgla brunatnego
Opis:
The Szamotuły Graben covers the southernmost part of the Permo-Mesozoic Poznań–Szamotuły Fault Zone. Along this regional discontinuity there are several salt structures, including the Szamotuły diapir, over which an extensional graben formed in the Paleogene and Neogene. The graben is located north of Poznań in central-western Poland, and is NW–SE-trending, ~20 km long, 3–5.5 km wide, and up to 160 m deep. It is filled with Lower Oligocene and Neogene sediments, including relatively thick lignite seams. Data from boreholes allow the assignment of the graben-fill sediments to appropriate lithostratigraphic units. Furthermore, analysis of changes in the thickness of these units provides evidence for periods of accelerated graben subsidence or uplift relative to its flanks. As a result, two distinct stages of tectonic subsidence and one inversion in the Paleogene–Neogene evolution of the Szamotuły Graben have been distinguished. Thus, relatively significant subsidence occurred in the Early Oligocene and the middle Early–earliest Mid-Miocene, while slight inversion took place in the middle part of the Mid-Miocene.
Źródło:
Acta Geologica Polonica; 2019, 69, 3; 387-401
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł

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