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Wyszukujesz frazę "Upper Jurassic" wg kryterium: Temat


Wyświetlanie 1-11 z 11
Tytuł:
Nowe dane o biostratygrafii oksfordu (jura górna) w SW obrzeżeniu Gór Świętokrzyskich na przykładzie kamieniołomów na Górze Maćkowej i Górze Dybkowej (Gnieździska k. Małogoszczy)
Autorzy:
Głowniak, E.
Powiązania:
https://bibliotekanauki.pl/articles/183383.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
biostratygrafia
górna jura
biostratigraphy
Upper Jurassic
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2008, 34, 3/1; 169-170
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foraminiferal biostratigraphy of the Middle and Upper Jurassic of the Polish Lowlands : the state of the art
Autorzy:
Smoleń, J.
Iwańczuk, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059772.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
foraminifers
biostratigraphy
Middle and Upper Jurassic
Polish Lowlands
Opis:
The foraminifera-based biostratigraphy of the Middle and Upper Jurassic of the Polish Lowlands was re-evaluated. Biostratigraphic charts providing ranges of the most important foraminiferal taxa characteristic of individual Jurassic stages are presented in relation to the currently used ammonite-based standard stratigraphic divisions. The study contains the new research on the foraminifera fauna and includes earlier results available in published and archival reports. In the Oxfordian and Lower Kimmeridgian deposits, various foraminiferal assemblages were distinguished with reference to the lithofacies in the individual parts of the Polish Basin and varying influences of the palaeogeographical provinces. Additionally, the foraminiferal zones in the Oxfordian and Lower Kimmeridgian deposits of southeastern Poland are distinguished based on detail study of foraminifers.
Źródło:
Geological Quarterly; 2018, 62, 2; 257--286
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biostratigraphy and palaeoenvironment of the Kimmeridgian-Lower Tithonian pelagic deposits of the Krížna Nappe, Lejowa Valley, Tatra Mts. (southern Poland)
Autorzy:
Jach, R.
Řeháková, D.
Uchman, A.
Powiązania:
https://bibliotekanauki.pl/articles/2060506.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
microfacies
biostratigraphy
calcareous dinoflagellates
calpionellids
Upper Jurassic
Western Carpathians
Opis:
The Upper Jurassic strata of the Krížna Unit in the Tatra Mts. comprises pelagic, fine-grained and well-oxygenated deposits. They are represented by red radiolarites and radiolarian limestones (Czajakowa Radiolarites Formation), red nodular limestones (Czorsztyn Limestones Formation) and wavy, platy or nodular light grey and reddish limestones and marlstones (Jasenina Formation). These deposits are mainly wackestones characterized by a succession of the following microfacies: radiolarian, filament-Saccocoma, Saccocoma and Globochaete–Saccocoma. The section comprises four calcareous dinoflagellate zones, i.e. the Late Kimmeridgian Moluccana Zone, and the Early Tithonian Borzai, Pulla and Malmica zones. In the uppermost part of the studied section, the Early Tithonian Dobeni Subzone of the Chitinoidella Zone has been identified. Using these biostratigraphic data, the sedimentation rate for the Late Kimmeridgian (Borzai Zone) and Early Tithonian (Dobeni Subzone of the Chitinoidella Zone) interval is estimated as 3.7 m/my. This is in accordance with the general trend of increasing sedimentation rate through the Tithonian and Berriasian. The increased supply of clastic material in the Jasenina Formation may have been caused by climate changes and continental weathering. The sedimentation was controlled mainly by eustatic changes and fluctuations in ACD and CCD levels.
Źródło:
Geological Quarterly; 2012, 56, 4; 773--788
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Oxfordian ammonite genus Passendorferia Brochwicz Lewiński and the Tethyan subfamily Passendorferiinae Meléndez: origin and palaeobiogeography
Autorzy:
Mendez, G.
Atrops, F.
Bello, J.
Brochwicz-Lewiński, W.
Darpa, C.
Fozy, I.
Perez-Urresti, I.
Ramajo, J.
Sequeiros, L.
Powiązania:
https://bibliotekanauki.pl/articles/2061354.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Upper Jurassic
ammonites
paleobiogeography
West Tethys
biostratigraphy
evolution
Mediterranean Province
Opis:
The Oxfordian ammonite group Passendorferiinae (known as "Mediterranean perisphinctids") forms a group of perisphinctids characterized by strongly evolute serpenticone coiling and subcircular to subquadrate whorl section, and forms a lateral divergent branch of the main stem Perisphinctidae. They originated probably from Late Callovian Grossouvriinae (Alligaticeras) and spread mainly in the Mediterranean (Tethyan) Province along the southern margin of Tethys, occasionally reaching the outer areas of epicontinental platforms. Their particular morphological features make them somewhat homoeomorphic with Tethyan Kimmeridgian Nebrodites. The phyletic link might be represented by the genus Geyssantia Meléndez, known from the Late Oxfordian Planula Chronozone. Separate biogeographic distribution in relation to the Perisphinctinae might reflect a progressive differentiation of western Tethyan faunas at the Callovian-Oxfordian boundary and at the onset of the Middle Oxfordian Transversarium Chronozone. Their rapid evolution gives them a biostratigraphic value similar to that of the Perisphinctinae. At the turn of the Middle-Late Oxfordian they gave rise to early Ataxioceratinae (Orthosphinctes), which replaced the Perisphinctinae in epicontinental areas, and colonised the marginal epicontinental blocks of northern Tethys. The taxonomy of this group is based upon the recognition of sexual dimorphism, using a single generic and specific name for both (M) and (m), and hence rejecting the use of former subgeneric ames for both dimorphs. A new species within this line: Passendorferia nodicostata sp. nov. from the Plicatilis Biozone (Paturattensis Subbiozone) is defined and described for the first time.
Źródło:
Volumina Jurassica; 2009, 7, 1; 113-134
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The foraminiferal assemblages of the uppermost Kimmeridgian-Volgian succession of Western Siberia and their correlation potential 157 INTRODUCTION During the last few decades, the stratigraphy of the uppermost Jurassic-lowermost Cretaceous (scope, sequen
Autorzy:
Podobina, V.
Gabysheva, E.
Tatyanin, G.
Powiązania:
https://bibliotekanauki.pl/articles/2061369.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Western Siberia
Upper Jurassic
Volgian
marine deposits
biostratigraphy
correlation
foraminifera
Opis:
The present study summarizes the data on the continuous stratigraphic sequence of foraminiferal assemblages from the Volgian deposits of the south-east of Western Siberia. Microfaunal analyses of 650 core samples from 18 boreholes of Volgian deposits were performed. Eighty two foraminiferal species, identified from the samples, were combined into the Volgian assemblages. On the basis of these assemblages, four biostratigraphic units were established in the range of foraminiferal zones and foraminiferal beds with characteristic species. These biostratigraphic units correspond to the upper part of the Kimmeridgian/ lower part of the Volgian, the Middle Volgian (lowermost and uppermost beds), and the Upper Volgian. A detailed biostratigraphic analysis of the Volgian beds was carried out, which enabled a correlation scheme to be developed for major regions of Russia. West-Siberian foraminiferal assemblages were correlated with those of Europe and North America within the Panboreal Superrealm. The species composition of foraminiferal assemblages was analyzed, and correlatable species ere established. This provided an opportunity to correlate coeval strata from Western Siberia, East European (Russian) Platform, northern territories of Siberia and Arctic Islands, Canada, Spitsbergen and England. The possibility was established for correlating Volgian-Tithonian deposits of the Panboreal and Tethys-Panthalassa Superrealms through the Dnieper-Donets Basin where faunas of both southern and Boreal-Arctic types are met.
Źródło:
Volumina Jurassica; 2009, 7, 1; 157-172
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykształcenie i biostratygrafia wybranych profili górnej jury i dolnej kredy sukcesji braniskiej i pienińskiej pienińskiego pasa skałkowego Polski, na podstawie wapiennych dinocyst i kalpionellidów
Autorzy:
Hejnar, J.
Powiązania:
https://bibliotekanauki.pl/articles/183379.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
biostratygrafia
górna jura
kreda dolna
Pieniński Pas Skałkowy
biostratigraphy
Lower Cretaceous
Upper Jurassic
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2008, 34, 3/1; 174-175
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeobiogeography, palaeoecology, and sequence stratigraphy of the Upper Jurassic carbonate succession of the Lar Formation, central Alborz Zone, Iran
Autorzy:
Saleh, Zahra
Reháková, Daniela
Powiązania:
https://bibliotekanauki.pl/articles/27324245.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Upper Jurassic
microfacies
foraminifera
ammonites
calcareous dinoflagellates
biostratigraphy
sequence stratigraphy
Alborz Zone
Iran
Opis:
Foraminifera, ammonites, and calcareous dinoflagellates were used for stratigraphy and, together with microfacies, for the assessment of the palaeoenvironmental conditions of the Upper Jurassic deposits in the central Alborz Zone of northern Iran. The Lar Formation (Lar Fm.) in the Polur section is of latest Oxfordian to early Kimmeridgian age. The ammonite Subnebrodites planula and the calcareous dinoflagellate Colomisphaera nagyi have been introduced as new biomarkers of the lower Kimmeridgian in the central Neo-Tethys. The distribution of calcareous dinoflagellates reflects possible dispersal routes along a narrow seaway between the western Neo-Tethys and the Alborz Zone in the central Neo-Tethys. The Terebella-Crescentiella associations of the Lar Fm. represent a low-energy setting under dysoxic conditions in the Central Neo-Tethys Ocean. The benthic foraminiferal assemblages in this formation show a high dominance of infaunal taxa and r-selected strategists. This assemblage is reminiscent of eutrophic conditions and low oxygen levels in the lower part of the Lar Fm. Good preservation of the hexactinellid sponges in the upper part of the Lar Fm. also indicates an oxygen-minimum zone. Three third-order depositional sequences can be distinguished in the study area based on six microfacies. Depositional sequence 1 (DS1) is composed mainly of argillaceous limestone and medium- to thick-bedded limestone, corresponding to an outer ramp-to-middle ramp environment. Depositional sequence 2 (DS2) comprises breccia limestone and thick-bedded limestone facies in its lower part and thin-bedded limestone to massive limestone in its upper part. The breccia limestone facies may be associated with subaerial exposure and reworking of previously deposited sediment during a relative sea level fall. The thin-bedded limestone to massive limestone of DS2 consists mainly of bioclastic mudstone to wackestone (outer ramp). These represent an deep-water outer homoclinal ramp facies. Depositional sequence 3 (DS3) consists mainly of massive limestone to thick-bedded limestone with a bioclastic peloidal microbial Crescentiella packstone (middle ramp). The relative stratigraphic positions of DSs1–3 and sequence boundaries in the uppermost Oxfordian to lower Kimmeridgian of the Polur area show a fair match to the upper Oxfordian to lower Kimmeridgian sequences (JOx7, JOx8, JKi1 and JKi2) on the global sea level curve.
Źródło:
Geological Quarterly; 2023, 67, 2; art. no. 15
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Korelacja podziałów amonitowych i dinocystowych przy granicy oksfordu i kimerydu na podstawie profilów wierceń Bartoszyce IG 1 i Kcynia IG IV
The ammonite-dinocyst subdivisions correlation at the Oxfordian/Kimmeridgian boundary in the Bartoszyce IG 1 and Kcynia IG IV cores from northern Poland
Autorzy:
Barski, M.
Matyja, B. A.
Wierzbowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2077306.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Upper Jurassic
ammonite biostratigraphy
dinocyst
biostratigraphy
correlations
jura górna
biostratygrafia amonitowa
biostratygrafia
korelacje
Opis:
Detailed study of ammonite and Dinoflagellata assemblages from the Bartoszyce IG 1 and Kcynia IG N cores in northern Poland comprises the stratigraphical interval at the Oxfordian/Kimmeridgian boundary. Correlations along well defined biostratigraphical horizons between the particular ammonite subdivisions typical of different biogeographical provinces and subdivisions based on Dinoflagellate cysts are discussed.
Źródło:
Volumina Jurassica; 2005, 3, 1; 87--96
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated biostratigraphy and carbon isotope stratigraphy of the Upper Jurassic shallow water carbonates of the High-Tatric Unit (Mały Giewont area, Western Tatra Mountains, Poland)
Autorzy:
Pszczółkowski, A.
Grabowski, J.
Wilamowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2060534.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
biostratigraphy
carbon isotope stratigraphy
Raptawicka Turnia Limestone Formation
Upper Jurassic
High-Tatric Succession
Tatra Mts.
Opis:
New biostratigraphical and carbon isotope data are presented for the Upper Jurassic limestones of the Raptawicka Turnia Limestone Formation (High Tatric unit, Western Tatra Mountains, Poland) from the Mały Giewont area. The Kimmeridgian, lower Tithonian and lower part of the upper Tithonian have been identified on the basis of calcareous dinocysts and calpionellids. Eight microfossil biozones are distinguished: acme Fibrata, acme Parvula, Moluccana, Borzai, Tithonica acme Pulla(?), Malmica, Chitinoidella and Crassicollaria (pars). The Kimmeridgian/Tithonian boundary is indicated at the top of the Borzai Zone 76 m above the base of the Raptawicka Turnia Limestone Formation. The microfossil stratigraphy suggests the late Early Kimmeridgian age (acme Parvula Zone) of the ammonites described by Passendorfer (1928). The taxon Taramelliceras ex gr. compsum found 14 m above those ammonites is Late Kimmeridgian in age. Seven microfacies types (MF) are identified in the Upper Jurassic limestones of the Mały Giewont area. The Bositra-Saccocomidae MF occurs across the Lower-Upper Kimmeridgian boundary. The planktonic and benthic foraminifera occur in the Upper Jurassic deposits of the Raptawicka Turnia Limestone Formation. The genera Lenticulina Lamarck and Spirillina Ehrenberg are common in the Kimmeridgian and Tithonian limestones. The palaeobathymetric evolution of the Kimmeridgian-Tithonian deposition recorded in the Mały Giewont sections reveals: the transgressive episode at the Lower/Upper Kimmeridgian boundary interval, the transgression peak during the Early Tithonian (Malmica Zone) and gradual shallowing of the High-Tatric swell in the Late Tithonian. Integrated isotope stratigraphy and biostratigraphy enabled correlation with the pelagic section of the Sub-Tatric succession in the Długa Valley section. The middle part of the Raptawicka Turnia Limestone Formation (Upper Kimmeridgian) might be correlated with the upper part of the Czajakowa Radiolarite Formation (red radiolarites) and Czorsztyn Formation in the Długa Valley section. The upper part of the Raptawicka Turnia Limestone Formation of Early Tithonian age corresponds mostly to the Jasenina Formation. The overall similarity of the δ13C decreasing values recorded in the Kimmeridgian–earliest Tithonian interval of the Mały Giewont (this study) and Długa Valley sections indicates that the generally shallow-water deposits of the Raptawicka Turnia Limestone Formation accumulated below the zone influenced by changes in the composition of marine water caused, for instance, by intense rainfalls.
Źródło:
Geological Quarterly; 2016, 60, 4; 893--918
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lower Tithonian microconchiate simoceratins from eastern Mexico: Taxonomy, biostratigraphy, and palaeobiogeography
Autorzy:
Villasenor, A.
Oloriz, F.
Gonzalez-Arreola, C.
Powiązania:
https://bibliotekanauki.pl/articles/22008.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
biostratigraphy
paleobiogeography
paleontology
taxonomy
Mexico
Eastern Mexico
Ammonitina
Pseudovolanoceras
Tithonian
Upper Jurassic
Jurassic
deposit
Pseudovolanoceras aesinense
Pseudovolanoceras aesinense chignahuapense
new subspecies
ammonite
microconchiate simoceratin
simoceratin
Opis:
The precise record of simoceratins sampled bed−by−bed is first reported from Mexico (Mazatepec area in Puebla, central−eastern Mexico), as well as the existence of lappeted peristomes in these ammonites. Both Pseudovolanoceras aesinense and the subspecies Pseudovolanoceras aesinense chignahuapense are shown to occur among Mexican simoceratins. The European species and the Mexican subspecies share the same stratigraphic range in the studied sections, yet they differ in ephebic sculpture. Ecological adaptation to neritic seas corresponding to eastern Mexico areas is interpreted, forcing phenotypic deviation with geographic significance, i.e., subspeciation. The new subspecies would indicate stratigraphic horizons within the Semiformiceras semiforme/Haploceras verruciferum Chronozone in the Mediterranean Tethys. A revision of contemporaneous simoceratins in the Americas is founded on a comparative analysis with respect to the European species P. aesinense.
Źródło:
Acta Palaeontologica Polonica; 2011, 56, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki badań mikropaleontologicznych utworów jury górnej, kredy górnej i miocenu w otworach wiertniczych Trojanowice 2 i Cianowice 2 (południowo-wschodnia część Wyżyny Krakowsko-Częstochowskiej)
Results of micropaleontological investigations of the Upper Jurassic, Upper Cretaceous and Miocene sediments in the Trojanowice 2 and Cianowice 2 boreholes (south-eastern part of the Kraków-Częstochowa Upland)
Autorzy:
Olszewska, B.
Powiązania:
https://bibliotekanauki.pl/articles/2061889.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
biostratygrafia
mikroskamieniałości
miocen
kreda górna
jura środkowa i górna
Trojanowice 2
Cianowice 2
Wyżyna Krakowsko-Częstochowska
biostratigraphy
microfossils
Miocene
Upper Cretaceous
Middle-Upper Jurassic
Trojanowice 2 and Cianowice 2 boreholes
Kraków-Częstochowa Upland
Opis:
Z otworów wiertniczych Trojanowice 2 i Cianowice 2 opracowano mikropaleontologicznie utwory miocenu, kredy górnej, jury górnej i stropu jury środkowej. Miocen (otwór Trojanowice 2) jest reprezentowany przez utwory ogniwa iłów spirialisowych formacji z Machowa z charakterystyczną Velapertina indigena (Łuczkowska) (późny baden) oraz przez warstwy skawińskie z Praeorbulina glomerosa (Blow) (wczesny baden). Utwory kredy górnej z uwagi na obecność w zespołach form zbliżonych do Stensioeina exculpta (Reuss) wiekowo odniesiono do późnej kredy. Utwory jury górnej zawierają trzy zróżnicowane gatunkowo zespoły mikroskamieniałości: 1 – z Protomarssonella jurassica (Mityanina) i Colomisphaera carpathica (Borza) (późny oksford), 2 – z Ophthalmidium strumosum (Gümbel) i Paalzowella turbinella (Gümbel) (?środkowy–wczesny oksford); 3 – Globuligerina oxfordiana Grigelis, Colomisphaera fibrata (Nagy) i Comittosphaera czestochowiensis Rehánek (wczesny oksford). Wapienie krynoidowe i piaskowce allochemiczne stropu jury środkowej zawierały ubogi zespół otwornic aglutynujących keloweju z Verneuilinoides minimus (Kosyreva), Protomarssonella osowiensis Bielecka et Styk i Dorothia insperata Bułynnikova. W utworach tych stwierdzono również obecność gatunku Bosniella croatica (Gušić) związanego z obszarami płytkowodnej sedymentacji węglanowej.
Miocene, Upper Cretaceous and Middle/Late Jurassic sediments from the Trojanowice 2 and Cianowice 2 boreholes were studied for microfossils. Miocene sediments (Trojanowice 2 borehole only) are represented by the “Spirialis Clays” member of the Machów Formation (Late Badenian) with Velapertina indigena (Łuczkowska), and by the Skawina Beds (Early Badenian) with Praeorbulina glomerosa (Blow). Upper Cretaceous (Senonian) sediments are documented by the occurrence of forms similar to Stensioeina exculpta (Reuss). Upper Jurassic sediments contain three different assemblages: 1 – with Protomarssonella jurassica (Mityanina) and Colomisphaera carpathica (Borza) (Late Oxfordian); 2 – with Ophthalmidium strumosum (Gümbel) and Paalzowella turbinella (Gümbel) (?Middle–Early Oxfordian); 3 – with Globuligerina oxfordiana Grigelis, Colomisphaera fibrata (Nagy) and Comittosphaera czestochowiensis Rehánek (Early Oxfordian). Crinoidal limestone and allochemic sandstone of the uppermost Middle Jurassic sediments containan impoverished assemblage of agglutinated foraminifers: Verneuilinoides minimus (Kosyreva), Protomarssonella osowiensis (Bielecka et Styk) and Dorothia insperata Bułynnikova. Additionally, a typical carbonate platform foraminifer Bosniella croatica (Gušić) is observed.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2014, 459; 109--131
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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