Record details

Title
    Calcareous nannofossils of the Upper Karpatian and Lower Badenian in the Carpathian Foredeep, Moravia (Czech Republic)
Statement of responsibility
    Lilian Švábenická
Author
    Švábenická, Lilian, 1953-
Language
    anglicky
Source title - serial
    Geologica carpathica
Vol./nr.
    Roč. 53, č. 3
Pages
    s. 197-210
Year
    2002
Notes
    7 obr., 3 pl., 2 s. bibl.
    il.
    Zkr. název ser.: Geol. carpath.
Subject group
    baden
    biostratigrafie
    karpat
    karpatská neogenní předhlubeň
    korelace stratigrafická
    miocén
    nannofosílie
    paleoekologie
    Paratethys
Geographical name
    ČR-Morava
    Hrušovany nad Jevišovkou (Znojmo)
    Kuřim (Brno-venkov)
    Olomouc-Slavonín
    Opatovice (Znojmo)
    Slatinice (Olomouc)
    Šatov (Znojmo)
    Velký Týnec (Olomouc)
    Žopy (Kroměříž)
Keyword
    Badenian
    Calcareous
    Carpathian
    Czech
    Foredeep
    Karpatian
    Lower
    Moravia
    Nannofossils
    Republic
    Upper
Abstract (in english)
   Calcareous nannofossils were studied in the Karpatian and Lower Badenian deposits of the Carpathian Foredeep, Moravia in view of their use in biostratigraphy. The following nannofossil horizons were recognized: 1. "helicolith" horizon with common Helicosphaera ampliaperta in sandy clays ("schlier") of the Laa Formation, 2. Helicosphaera waltrans horizon in clays and siliciclastic sediments of the Grund Formation and in the basal siliciclastic sediments of the Lower Badenian, and 3. Sphenolithus heteromorphus horizon in clays ("tegel") of Lower Badenian (Moravian) age. In its upper part, oval forms of Coronocyclus nitescens and 5-rayed symmetrical discoasters appear. The occurrence of species H. waltrans is limited to a short stratigraphic interval approximately corresponding to the range of planktonic foraminiferal species Globigerinoides bisphericus and includes the first appearances of Praeorbulina ssp. and Orbulina suturalis.
   The dominance of helicoliths in the Laa and Grund formations and the basal siliciclastic sediments of the Lower Badenian gives evidence for a shallow epicontinental sea. Nannofossil enrichment above the Helicosphaera waltrans horizon evidences deepening of depositional area, open-sea conditions, and reflects the Lower Badenian transgression. The problem of correlation of the Central Paratethys regional stages either with the Mediterranean chronostratigraphic scale or with NN zones was discussed
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    13. 7. 2007
Import date
    8. 8. 2012