Record details

Title
    Differential subsidence in the Variscan foreland of Moravia, biostratigraphy, facies and conodont reworking in Mississippian gravity-flow carbonate breccias
Author
    Bábek, Ondřej
    Kalvoda, Jiří
Language
    anglicky
Publication type
    článek ve sborníku
Source title - monograph
    Koelner Forum fuer Geologie und Palaeontologie
Pages
    1
Notes
    Akce: 2006/10/04 ; Koeln
Thesaurus term
    breccias
    foreland basin
    sedimentology
    stratigraphy
    synsedimentary tectonics
Keyword
    Biostratigraphy
    Breccias
    Carbonate
    Conodont
    Differential
    Facies
    Foreland
    Gravity-flow
    Mississippian
    Moravia
    Reworking
    Subsidence
    Variscan
Abstract (in english)
   Breccias with phosphorites constitute a distinct lithology in Lower Carboniferous of the Moravo-Silesian basin. This facies constitutes lens-like bodies sandwiched between preorogenic sediments and younger synorogenic turbidites ("Culm" facies). This facies represents a key lithology in our understanding of the transition from the passive margin to the foreland basin stage of the MSB. Detailed description of facies, allochem composition and biostratigraphy indicate that the breccias were deposited on toes of submarine slopes and contain significant proportion of reworked material. The onset of breccia sedimentation was diachronous within the interval from middle Tournaisian to early Viséan. The breccias are always underlain by Famennian carbonates suggesting there is always a distinct hiatus associated with their basal surface. The breccias are in places accompanied by neptunian dikes filled with upper Tournaisian detrital sediments.
Contributor
    MU Brno, Přírodovědecká fakulta
Contributor code
    MU, PřF
Source format
    R
Import date
    8. 8. 2012