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    Wyświetlanie 1-16 z 16
    Tytuł:
    Integrated biostratigraphy of Upper Maastrichtian chalk at Chełm (SE Poland)
    Autorzy:
    Dubicka, Z.
    Peryt, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/191439.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    biostratigraphy
    foraminifers
    ammonites
    belemnites
    chalk
    Upper Maastrichtian
    Border Synclinorium
    SE Poland
    Opis:
    A 40-m-thick section of chalk exposed in the Chełm quarry (SE Poland) contains a rather poor assemblage of macrofauna and a well diversified assemblage of foraminifers. The planktonic foraminifer assem- blages characterized by a considerable number of representatives of Globigerinelloides and Heterohelix and the presence of Guembelitria cretacea indicate the lowest part of the Guembelitria cretacea Zone sensu Peryt (1980). Benthic foraminifers point out that the strata of the Chełm quarry section can be attributed to the lower part of the Upper Maastrichtian: i.e., the Gavelinella danica/Brotzenella preacuta Zone of the European Boreal Province or the Anomalinoides pinguis Zone distinguished in Poland (except the Carpathians). The occurrence of ammonites, such as Hoploscaphites constrictus lviviensis Machalski, Hoploscaphites schmidi (Birkelund), and Acanthoscaphites varians blaszkiewiczi Jagt & al. indicates that the Chełm succession belongs to the lower part of the Belemnitella junior Zone, i.e., to the Belemnitella junior–Spyridoceramus tegulatus Zone sensu Schulz & Schmid (1983). The correlation of the Chełm quarry section and the Middle Vistula River Valley section indicates that the equivalent interval of the former section is not exposed in the Middle Vistula River Valley and that it would occur between the Chotcza and Lucimia villages within the lower part of the Belemnitella junior Zone, i.e., within the Belemnitella junior-Spyridoceramus tegulatus Zone distinguished in NW Germany (Schulz & Schmid,1983).
    Źródło:
    Annales Societatis Geologorum Poloniae; 2011, 81, No 2; 185-197
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated biostratigraphy across the Aalenian/Bajocian boundary of the Central High Atlas, Morocco
    Autorzy:
    Sadki, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077320.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Aalenian/Bajocian boundary
    Central High Atlas
    Morocco
    integrated biostratigraphy
    Aalen
    Bajos
    Atlas Wysoki
    Maroko
    biostratygrafia
    Opis:
    This work presents an integrated biostratigraphic study across the Aalenian/Bajocian boundary of the Central High Atlas of Morocco. The data that are the basis for this study were obtained from the region of Rich that is located in the center of the basin of the Moroccan High Atlas. This region presents a thick Aalenian–Bajocian succession with continuous marine sedimentation, which offers a rich and varied fauna whose analysis enables the compilation of an integrated biostratigraphy based on the different paleontological groups: ammonites, belemnites, brachiopods, bivalves, gastropods, calcareous nannofossils, foraminifera and ostracods.
    Źródło:
    Volumina Jurassica; 2015, 13, 1; 27--42
    1896-7876
    1731-3708
    Pojawia się w:
    Volumina Jurassica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated biostratigraphy of the Santonian through Maastrichtian (Upper Cretaceous) of extra-Carpathian Poland
    Autorzy:
    Walaszczyk, I.
    Dubicka, Z.
    Olszewska-Nejbert, D.
    Remin, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/139026.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Upper Cretaceous
    Extra-Carpathian Poland
    biostratigraphy
    correlation
    chronostratigraphy
    górna kreda
    Karpaty
    Polska
    biostratygrafia
    korelacja
    chronostratygrafia
    Opis:
    The biostratigraphic importance, current zonations, and potential for the recognition of the standard chronostratigraphic boundaries of five palaeontological groups (benthic foraminifers, ammonites, belemnites, inoceramid bivalves and echinoids), critical for the stratigraphy of the Santonian through Maastrichtian (Upper Cretaceous) of extra-Carpathian Poland, are presented and discussed. The summary is based on recent studies in selected sections of southern Poland (Nida Synclinorium; Puławy Trough including the Middle Vistula River composite section; and Mielnik and Kornica sections of south-eastern Mazury-Podlasie Homocline) and of western Ukraine (Dubivtsi). The new zonation based on benthic forams is presented for the entire interval studied. Zonations for ammonites, belemnites and inoceramid bivalves are compiled. All stage boundaries, as currently defined or understood, may easily be constrained or precisely located with the groups discussed: the base of the Santonian with the First Occurrence (FO) of the inoceramid Cladoceramus undulatoplicatus; the base of the Campanian with the Last Occurrence (LO) of the crinoid Marsupites testudinarius and approximated by the range of the foraminifer Stensioeina pommerana; and the base of the Maastrichtian approximated by the FO of the inoceramid bivalve Endocostea typica and the FO of the belemnite Belemnella vistulensis. The positions of substage boundaries, as currently understood, are constrained in terms of the groups discussed.
    Źródło:
    Acta Geologica Polonica; 2016, 66, 3; 313-350
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated biostratigraphy of the Jurassic strata of the Wagad Uplift, Kachchh, western India
    Autorzy:
    Rai, J.
    Garg, S.
    Gupta, M.
    Singh, A.
    Pandey, D. K.
    Fürsich, F. T.
    Alberti, M.
    Garg, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077328.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Jurassic
    calcareous nannofossils
    dinoflagellate cysts
    ammonites
    Oxfordian
    Kimmeridgian
    Wagad Uplift
    Kachchh
    jura
    wapienie
    bruzdnice
    amonity
    Oksford
    Kimeryd
    Opis:
    An integrated study based on calcareous nannofossils, organic-walled dinoflagellate cysts, and ammonites from the Washtawa and Kanthkot formations of the Wagad Uplift have allowed a detailed documentation of the stratigraphic position of these formations within the Oxfordian and Kimmeridgian sediments of the Kachchh Basin, western India. The nannofossil assemblages from the lower part of the Nara Shale Member exposed in the Nara and Washtawa domes, the Kanthkot Ammonite Beds along the Trambau River section, and the Patasar Shale Member exposed along the Trambau River section and the Patasar Tank section in the eastern part of the Wagad Uplift belong to the NJ 14 Cyclagelosphaera margerelli Zone of the Early Oxfordian, the NJ 15a Lotharingius sigillatus Zone of the Middle Oxfordian, and the NJ 15b Cretarhabdus conicus of Early Kimmeridgian age, respectively. Zonation schemes, based on calcareous nannofossils, dinoflagellate cysts, and ammonites were calibrated highlighting their biostratigraphic potential. These studies may represent a reference biochronology for Oxfordian–Kimmeridgian age strata applicable to the Tethyan realm of which India was a part during Late Jurassic times.
    Źródło:
    Volumina Jurassica; 2015, 13, 2; 55--80
    1896-7876
    1731-3708
    Pojawia się w:
    Volumina Jurassica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated biostratigraphy and palaeoenvironments of the Upper Cretaceous in the Petrich section (Central Srednogorie Zone, Bulgaria)
    Autorzy:
    Pavlishina, Polina
    Dochev, Docho
    Wagreich, Michael
    Koukal, Veronika
    Powiązania:
    https://bibliotekanauki.pl/articles/24024712.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Upper Cretaceous
    campanian
    calcareous nannofossil
    dinoflagellate cysts
    inoceramids
    biostratigraphy
    palaeoenvironments
    górna kreda
    kampan
    nanoplankton wapienny
    cysty bruzdnicowe
    inoceramy
    biostratygrafia
    paleośrodowisko
    Opis:
    The Upper Cretaceous succession (Coniacian to lowermost Maastrichtian, with focus on the Campanian) at Petrich, Central Srednogorie Zone in Bulgaria, is described and calibrated stratigraphically based on nannofossils, dinoflagellate cysts and inoceramids. The following standard nannofossil zones and subzones are identified: UC10-UC11ab (middle to upper Coniacian), UC11c-UC12-UC13 (uppermost Coniacian to Santonian), UC14a (lowermost Campanian), UC14bTP-UC15cTP (lower Campanian to ‘middle’ Campanian), UC15dTP-UC15eTP (upper Campanian), UC16aTP (of Thibault et al. 2016; upper part of the upper Campanian), and UC16b (Campanian-Maastrichtian boundary). The base of the Campanian is defined by the FO of Broinsonia parca parca (Stradner) Bukry, 1969 and Calculites obscurus (Deflandre) Prins and Sissingh in Sissingh, 1977 (a morphotype with a wide central longitudinal suture). The Areoligera coronata dinoflagellate cyst Zone (upper lower Campanian to upper upper Campanian) is identified, corresponding to the UC14bTP-UC16aTP nannofossil subzones. The inoceramid assemblage indicates the ‘Inoceramus’ azerbaydjanensis-‘Inoceramus’ vorhelmensis Zone, correlated within the interval of nannofossil subzones UC15dTP-UC15eTP. The composition of the dinoflagellate cyst assemblages and palynofacies pattern suggest normal marine, oxic conditions and low nutrient availability within a distal shelf to open marine depositional environment during the Campanian.
    Źródło:
    Acta Geologica Polonica; 2023, 73, 1; 33--62
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Turonian-Coniacian (Upper Cretaceous) of the Babadag Basin (North Dobrogea, Romania) : integrated biostratigraphy and microfacies succession
    Autorzy:
    Lodowski, Damian Gerard
    Walaszczyk, Ireneusz Piotr
    Grădinaru, Eugen
    Powiązania:
    https://bibliotekanauki.pl/articles/2058617.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    microfacies
    petrology
    inoceramids
    ammonites
    foraminifera
    palaeoenvironment
    Opis:
    The Upper Turonian to Middle Coniacian (Upper Cretaceous) succession of the Babadag Basin (North Dobrogea, Romania) constitutes an apparently continuous fossiliferous carbonate succession. The presence of moderately rich inoceramid, ammonite and foraminiferal assemblages allows for the application of a precise biostratigraphic subdivision. The palaeoenvironmental conditions and evolution of the Babadag Basin during the Late Turonian-Middle Coniacian are inferred using microfacies analysis and foraminiferal spectra. Together, these suggest the Turonian-Coniacian Badabag Basin reflects relatively shallow-water conditions in a near-shore environment, punctuated by two regression events in the Late Turonian and in the Middle Coniacian.
    Źródło:
    Geological Quarterly; 2019, 63, 1; 39--64
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Upper Campanian calciclastic turbidite sequences from the Hacımehmet area (eastern Pontides, NE Turkey): integrated biostratigraphy and microfacies analysis
    Autorzy:
    Sari, B.
    Kandemır, R.
    Özer, S.
    Walaszczyk, I.
    Görmüş, M.
    Demırcan, H.
    Yilmaz, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/138655.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Late Campanian
    Calciclastic Turbidite
    biostratigraphy
    Eastern Pontides
    kampan
    biostratygrafia
    Turcja
    Opis:
    The upper Campanian (Cretaceous) of the Hacımehmet area (south of the city of Trabzon; Eastern Pontides) is mainly composed of calciclastic turbidites. The basinal unit of the 119 m thick succession includes thin red pelagic limestone interlayers and conglomerates dominated by volcanic clasts. The overlying upper slope and lower slope units of the sequence consist of an alternation of allochthonous calcarenite/calcirudite beds and pelagic marls and mudstones. Calcarenite/calcirudite beds dominate the upper slope unit of the succession and are composed of transported material, including benthic foraminifers, red algae, bryozoan, crinoid and rudist fragments, inoceramid bivalve prisms and neritic and pelagic carbonate lithoclasts. The occurrence of Helicorbitoides boluensis (Sirel) extracted from the calcarenite/calcirudite beds indicates a Campanian age. Identifiable rudists such as Joufia reticulata Boehm, Bournonia cf. anatolica Özer, Biradiolites cf. bulgaricus Pamouktchiev and ?Biradiolites sp. from the upper slope unit of the succession indicate a late Campanian–Maastrichtian age. The planktonic foraminifers within the red pelagic limestone beds, marls and mudstones throughout the succession consist mainly of Campanian–Maastrichtian forms and suggest mainly basinal depositional conditions. The presence of Radotruncana cf. calcarata (Cushman) accompanied by Globotruncanita elevata (Brotzen) in the basinal unit of the succession indicates an early late Campanian age for the lower part of the succession. Inoceramid bivalves have been collected from the upper part of the succession. The fauna is dominated by ‘Inoceramus’ tenuilineatus Hall and Meek, 1854 and Cataceramus haldemensis (Giers, 1964); other taxa recognised are: ‘Inoceramus’ algeriensis Heinz, 1932, Platyceramus vanuxemi (Meek and Hayden, 1860), ‘Inoceramus’ cf. nebrascensis Owen, 1852, Cataceramus aff. barabini (Morton, 1834), Cataceramus gandjaensis (Aliev, 1956), and ‘Inoceramus’ sp.; the assemblage indicates the ‘Inoceramus’ tenuilineatus Zone; corresponding to the middle–late Campanian boundary interval. The uppermost part of the succession is characterized by the presence of the trace fossils Scolicia strozzii and Scolicia isp., indicating a mixed Skolithos-Cruziana ichnofacies. This ichnofacies suggests a well-oxygenated environment.
    Źródło:
    Acta Geologica Polonica; 2014, 64, 4; 393-418
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Towards an integrated Jurassic biostratigraphy for eastern Greenland
    Autorzy:
    Kelly, S. R. A.
    Gregory, F. J.
    Braham, W.
    Strogen, D. P.
    Whitham, A. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077318.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Jurassic
    integrated biostratigraphy
    ammonites
    palynology
    micropalaeontology
    Greenland
    Jur
    biostratygrafia
    amonity
    palinologia
    mikropaleontologia
    Grenlandia
    Opis:
    The thick and relatively complete Jurassic succession of eastern Greenland provides a unique biostratigraphic record for the North Atlantic region. The main biostratigraphic control for the succession has been provided by molluscs, especially ammonites and to a lesser extent by bivalves and belemnites. The late John Callomon and colleagues recognised 93 Boreal ammonite-bearing horizons in the Mid to Late Jurassic. This provides a reliable backbone to the biostratigraphy of these strata, prompting a palynological colleague to comment that they are the “Policemen of Jurassic Stratigraphy”. Other biostratigraphically significant microfossil and palynological groups, can be calibrated against this standard, but on their own cannot achieve the same precision. The Early Jurassic of eastern Greenland does not have such fine control as later parts of the period. No single biostratigraphic group can be used successfully throughout the interval, and there are only three significant ammonite faunas during this period. Reliance on various different organisms is necessary to cope with the changing range of marine to non-marine environments. CASP field-work from 1990 to 2012 has resulted in the collection of much biostratigraphic material. In this article, published data are summarised together with previously unpublished data in the form of a unified table. The integrated chart shows detailed columns for the whole eastern Greenland Jurassic. It demonstrates the ammonite, palynological and microfossil events/biozones and horizons which are correlated by time. More limited information is available on belemnites, bivalves and macroflora. This is the first time such an integrated biostratigraphic scheme has been assembled for the Jurassic of eastern Greenland. It will be of value to the offshore oil-industry in the northern North Atlantic and on the Barents Shelf as well as to field geologists in Greenland.
    Źródło:
    Volumina Jurassica; 2015, 13, 1; 43--64
    1896-7876
    1731-3708
    Pojawia się w:
    Volumina Jurassica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The microcrinoid taxonomy, biostratigraphy and correlation of the upper Fredericksburg and lower Washita groups (Cretaceous, middle Albian to lower Cenomanian) of northern Texas and southern Oklahoma, USA
    Autorzy:
    Gale, Andrew Scott
    Rashall, Jenny Marie
    Kennedy, William James
    Holterhoff, Frank Koch
    Powiązania:
    https://bibliotekanauki.pl/articles/1835606.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Roveacrinida
    integrated biostratigraphy
    ammonites
    planktonic foraminifera
    biostratygrafia
    amonity
    otwornice planktoniczne
    Opis:
    The stratigraphy of the upper Fredericksburg and lower Washita groups of northern Texas and southern Oklahoma is described, and biostratigraphical correlation within the region, and further afield, using micro-crinoids, ammonites, planktonic foraminiferans and inoceramid bivalves is summarised. The taxonomy of the roveacrind microcrinoids is revised by the senior author, and a new genus, Peckicrinus, is described, with the type species Poecilocrinus porcatus (Peck, 1943). New species include Roveacrinus proteus sp. nov., R. morganae sp. nov., Plotocrinus reidi sp. nov., Pl. molineuxae sp. nov., Pl. rashallae sp. nov. and Styracocrinus thomasae sp. nov. New formae of the genus Poecilocrinus Peck, 1943 are Po. dispandus forma floriformis nov. and Po. dispandus forma discus nov. New formae of the genus Euglyphocrinus Gale, 2019 are E. pyramidalis(Peck, 1943) forma pyramidalis nov., E. pyramidalis forma radix nov. and E. pyramidalis forma pentaspinusnov. The genera Plotocrinus Peck, 1943, Poecilocrinus and Roveacrinus Douglas, 1908 form a branching phylogenetic lineage extending from the middle Albian into the lower Cenomanian, showing rapid speciation, upon which a new roveacrinid zonation for the middle and upper Albian (zones AlR1-12) is largely based. Outside Texas and Oklahoma, zone AlR1 is recorded from the lower middle Albian of Aube (southeastern France) and zones AlR11-CeR2 from the Agadir Basin in Morocco and central Tunisia. It is likely that the zonation will be widely applicable to the middle and upper Albian and lower Cenomanian successions of many other regions.
    Źródło:
    Acta Geologica Polonica; 2021, 71, 1; 1-52
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zintegrowana biostratygrafia węglanowych osadów warstw cieszyńskich w polskich Karpatach Zachodnich
    Integrated biostratigraphy of carbonate deposits of the Cieszyn Beds in the Polish Western Carpathians
    Autorzy:
    Olszewska, B.
    Szydło, A.
    Jugowiec-Nazarkiewicz, M.
    Nescieruk, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/952744.pdf
    Data publikacji:
    2008
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    biostratygrafia
    tintinidy
    wapienne dinocysty
    wapienny nanoplankton
    otwornice
    tyton-hoteryw
    warstwy cieszyńskie
    Karpaty Zachodnie
    Polska
    biostratigraphy
    tintinnids
    calcareous dinocysts
    calcareous nannoplankton
    foraminifers
    Tithonian-(?Late) Hauterivian
    Cieszyn Beds
    Western Outer Carpathians
    Polska
    Opis:
    W pracy przedstawiono charakterystykę stratygraficzną dolnych łupków i wapieni cieszyńskich w oparciu o zróżnicowane spektrum mikroskamieniałości. Rozmieszczenie i migracja tych mikroorganizmów do basenu cieszyńskiego, usytuowanego na południowej krawędzi Platformy Zachodnioeuropejskiej, były określone jego geotektoniczną transformacją. Pozycję niefliszowych, węglanowych utworów basenu (dolne łupki cieszyńskie i dolna część wapieni cieszyńskich) określają zespoły tytońskich mikroskamieniałości z pojedynczymi elementami późnego kimerydu. Natomiast sedymentacja węglanowych turbiditów (wyższa część wapieni cieszyńskich) miała miejsce głównie w okresie berias - walanżyn z prawdopodobną kontynuacją do (?późnego) hoterywu.
    Microfossils from the Tithonian-(?Late) Hauterivian carbonate deposits of the Cieszyn Beds (Lower Cieszyn Shales and Cieszyn Limestones) are reviewed. The distribution and migration of microorganisms into the Carpathian (Cieszyn) Basin were determined by geotectonic transformation of the Cieszyn Basin situated on the southern margin of the Western European Platform. The age of the nonflysch carbonate deposition in the Cieszyn basin (Lower Cieszyn Shales, and lower part of the Cieszyn Limestones) is documented by Tithonian calcareous microfossils accompanied by Late Kimmeridgian elements whereas the development of carbonate turbidite deposition in the Beriassian - Valanginian time (Cieszyn Limestones), probably continued up to the (?Late) Hauterivian.
    Źródło:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2008, 34, 3/1; 33-59
    0138-0974
    Pojawia się w:
    Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    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:
    The lower and middle Berriasian in Central Tunisia: Integrated ammonite and calpionellid biostratigraphy of the Sidi Kralif Formation
    Autorzy:
    Maalaoui, K.
    Zargouni, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/138976.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ammonite
    calpionellids
    Berriasian
    bioevents
    biostratigraphy
    Tunisia
    amonit
    kalpionellidy
    berias
    biostratygrafia
    Tunezja
    Opis:
    The lower and middle Berriasian sedimentary succession of the Sidi Kralif Formation has been a subject of biostratigraphic study in two key sections in Central Tunisia. Our contribution is an attempt to better define the basal Berriasian interval, between the Berriasella jacobi Zone and the Subthurmannia occitanica Zone. Zonal schemes are established using ammonites and calpionellids, and these permit correlation with other regions of Mediterranean Tethys and beyond. The use of biomarkers afforded by microfossil groups has allowed characterization and direct correlation with four widely accepted calpionellid sub-zones, namely Calpionella alpina, Remaniella, Calpionella elliptica and Tintinopsella longa. The two ammonite zones of Berriasella jacobi and of Subthurmannia occitanica are recognised on the basis of their index species. The parallel ammonite and calpionellid zonations are useful as a tool for correlation and calibration in time and space, thus allowing a better definition of a J/K boundary. The presence of four Berriasian calpionellid bioevents is recognised: (1) the ‘explosion’ of Calpionella alpina, (2) the first occurrence of Remaniella, (3) the first occurrence of Calpionella elliptica and (4) the first occurrence of Tintinopsella longa. The last is here documented as coeval with the presence of Subthurmannia occitanica, which marks the lower/middle Berriasian boundary.
    Źródło:
    Acta Geologica Polonica; 2016, 66, 1; 43-58
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated stratigraphy of the Campanian-Maastrichtian boundary succession of the Middle Vistula River (central Poland) section; introduction
    Autorzy:
    Walaszczyk, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/139092.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    biostratygrafia
    kampan
    korelacja
    mastrycht
    Polska
    Wisła
    biostratigraphy
    Campanian-Maastrichtian boundary
    Central Poland
    correlation
    Middle Vistula River section
    Opis:
    The Campanian-Maastrichtian boundary interval of the Middle Vistula River valley section (central Poland) represents a continuous, lithologically monotonous, fossiliferous succession, with a good stable isotope and palaeomagnetic signal. It yields all the biostratigraphically critical macro- and microfossil groups: ammonites, belemnites, inoceramid bivalves, foraminifera, nannofossils and dinoflagellates. Additionally, it is located in the transitional zone between the Boreal and Tethyan biogeographic provinces, as well as between the western and eastern biogeographic areas of Europe. The section supplements the data on the interval acquired recently from the basal Maastrichtian stratotypic section in Tercis, south-west France, and from the interval reference section in Kronsmoor, northern Germany.
    Źródło:
    Acta Geologica Polonica; 2012, 62, 4; 485-493
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated palaeontological characteristics (ammonites, ostracods, foraminifers, dinocysts) of the Berriasian deposits of central Crimea
    Autorzy:
    Savelieva, J.
    Feodorova, A.
    Shurekova, O.
    Arkadiev, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2061034.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Berriasian
    biostratigraphy
    ostracods
    foraminifers
    spores
    pollen
    dinoflagellates
    ammonites
    palaeoecology
    correlation
    central Crimea
    biostratygrafia
    małżoraczki
    otwornice
    zarodniki
    pyłek
    wiciowce
    amonity
    paleoekologia
    Krym centralny
    Opis:
    The Berriasian deposits of the central Crimea have been studied in order to compose a composite sequence of the stage with detailed palaeontological characterization. The Berriasian includes the Bedenekyrskaya Formation (packstones), Bechku Formation (siltstones, sandstones) and Kuchkinskaya Formation (sponge packstones, clays, siltstones, and coral-algal bioherm framestones). The Jacobi, Occitanica and Boissieri zones were identified based on ammonites found in the sections. A micropalaeontological analysis determined the following: 6 foraminiferal assemblages, the Costacythere khiamii – Hechticythere belbekensis and Costacythere drushchitzi – Reticythere marfenini ostracod assemblages, and a Phoberocysta neocomica dinocyst assemblage. Palaeoecological analysis of the ostracod and foraminiferal associations indicates a moderately warm marine basin with normal salinity and shallow depths (tens of meters). Only the sponge horizon was probably deposited in a deeper-water environment.
    Źródło:
    Volumina Jurassica; 2014, 12, 1; 129--162
    1896-7876
    1731-3708
    Pojawia się w:
    Volumina Jurassica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Early Aptian bay deposits at the southern margin of the Lower Saxony Basin : Integrated stratigraphy, palaeoenvironment and OAE 1a
    Autorzy:
    Lehmann, J.
    Friedrich, O.
    Bargen, D.
    Hemker, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/138789.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    APT
    biostratygrafia
    chemostratygrafia
    facja
    Niemcy
    kreda wczesna
    Aptian
    biostratigraphy
    chemostratigraphy
    Early Cretaceous
    facies
    NW Germany
    OAE 1a
    Opis:
    The present study establishes a lithostratigraphic subdivision, a bio- and chemostratigraphy and describes the sedimentology of the Alstatte Bay at the southern margin of the Lower Saxony Basin in northern Germany. The socalled Fischschiefer is developed in the lower part of the section, a 2.1 m thick laminated interval that shows TOC values of up to 2 % and is interpreted as local expression of the global Oceanic Anoxic Event 1a (OAE 1a). The basal part of the Fischschiefer is fairly continuously laminated, whereas its upper part is characterized by an alternation of laminated and non-laminated beds. Stable carbon isotopes ([delta^13]C[carb]) show a characteristic pattern for the Fischschiefer interval that can be correlated with sections from the Tethyan Realm. Immediately above the Fischschiefer, however, the studied section might reveal a diagenetic overprint as indicated by very negative carbon stable isotope values. The remaining part of the section is characterized by a rather monotonous claystone succession, terminated by a greenish layer rich in glauconite overlain by glacial till of Pleistocene age. The fauna is typically Boreal in the lower part of the section, but changes around 2 m above the Fischschiefer towards an assemblage indicating a distinct Tethyan influx. The faunal shift is considered to be due to the maximum flooding of the continuous, long-term sea level rise of the Early Aptian which led also to a supposed shift from a restricted to open bay environment.
    Źródło:
    Acta Geologica Polonica; 2012, 62, 1; 35-62
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated stratigraphy of the Oxfordian global stratotype section and point (GSSP) candidate in the Subalpine Basin (SE France)
    Autorzy:
    Pellenard, P.
    Fortwengler, D.
    Marchand, D.
    Thierry, J.
    Bartolini, A.
    Boulila, S.
    Collin, P.
    Enay, R.
    Galbrun, B.
    Gardin, S.
    Huault, V.
    Huret, E.
    Martinez, M.
    Smith, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/2061042.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Callovian-Oxfordian boundary
    biostratigraphy
    ammonites
    dinoflagellate cysts
    calcareous nannofossils
    cyclostratigraphy
    chemostratigraphy
    biostratygrafia
    amonity
    cyklostratygrafia
    Opis:
    An integrated biostratigraphic approach, based on ammonites, calcareous nannofossils, dinoflagellates, combined with sedimentology, carbon-isotope and physical stratigraphy, is proposed for the Subalpine Basin (Thuoux and Saint-Pierre d’Argençon sections). Within the expanded marl deposits of the Terres Noires Fm., the Callovian-Oxfordian boundary is particularly well defined by ammonite taxa from different families (i.e. Cardioceratidae, Oppeliidae, Aspidoceratidae and Perisphinctidae), calcareous nannoplankton (first occurrence of large-sized Stephanolithion bigotii) and dinoflagellate cysts (first occurrence of Wanaea fimbriata). This precise biostratigraphy and diversity of ammonites permit long-range correlations with Boreal and Pacific domains. The exceptional outcrop conditions and continuous sedimentation allow high-resolution chemostratigraphy and cyclostratigraphy to be used. Variations of the δ13C record (1.5‰ increase during the Lamberti Zone), consistent with data from other sections of the Subalpine Basin and with the Paris Basin, provide additional markers to characterise the Callovian-Oxfordian boundary. Promising results from cyclostratigraphy should serve to constrain the duration of biostratigraphic units and thus improve the Late Jurassic Geologic Time Scale. Comparisons are made with the two other candidates for an Oxfordian GSSP, Redcliff Point (UK) and Dubki (Russian Platform). Finally, the advantages of the Subalpine Basin sections support the proposal of Thuoux as a suitable GSSP candidate for the base of the Oxfordian Stage
    Źródło:
    Volumina Jurassica; 2014, 12, 1; 1--44
    1896-7876
    1731-3708
    Pojawia się w:
    Volumina Jurassica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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