Record details

    Characteristics of palynospectra of the Upper Cenomanian-Lower Turonian (anoxic facies) of the Bohemian and Vocontian Basins
Statement of responsibility
    Marcela Svobodová, Henriette Méon, Blanka Pacltová
    Méon, Henriette
    Pacltová, Blanka
    Svobodová, Marcela
Source title - serial
    Věstník Českého geologického ústavu (Bulletin of the Czech Geological Survey)
    Vol. 73, no. 3
    p. 229-251
    7 obr., 1 fot., 2 tab., 7 pl., 2 s.bibl.
    České resumé
    Zkr. název ser.: Věst. Čes. geol. Úst. (Bull. Czech geol. Surv.)
Subject group
    česká křídová pánev
    prostředí anoxické
    prostředí mělkovodní
    vltavo-berounský faciální vývoj
Geographical name
    Pecínov (Rakovník)
    Vergons (Francie)
Abstract (in english)
   The results of a palaecological, biostratigraphical and palaeogeographical analysis of the Late Cretaceous palynomorphs from Central Bohemia, the Czech Republic (Bohemian Cretaceous basin) and SE France (Vocontian basin) are presented. The shallow-, marginal- to open marine deposits of the Cenomanian-Turonian (Peruc-Korycany and Bílá Hora Formations) at the Pecínov locality and deeper open marine deposits of the Vergons locality yielded a diverse palynomorph assemblage, which have been analysed from many points of view. 25 samples from Pecínov and 41 samples from Vergons yielded different percentages of marine, brackish and freshwater (or continental) species (see palynograms Figs. 5, 6), which reflected temporal and spatial changes.
   In accordance with other sedimentological, geochemical, paleobotanical and macrofaunal data, the palynomorphs moreover provide some new ideas concerning the origin of different environments (such as "black shale"), and niches or to monitor changes during fluctuationi in sea level and contribute to biostratigraphy. We recognised the anoxic events in the above mentioned basins which seem to be of varying ages. Sedimentation of the oxygen depleted layers at Pecínov started earlier (in the Late Cenomanian, the Pecínov Member of the Peruc-Korycany Formation) and later in the Vergons, most probably during the hiatus in the latest Cenomanian and earliest part of the Turonian at Pecínov
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    18. 2. 2008
Import date
    8. 8. 2012