Podrobnosti záznamu

    Differential subsidence in the Variscan foreland of Moravia, biostratigraphy, facies and conodont reworking in Mississippian gravity-flow carbonate breccias
    Bábek, Ondřej
    Kalvoda, Jiří
Typ dokumentu
    článek ve sborníku
Zdrojový dokument - monografie
    Koelner Forum fuer Geologie und Palaeontologie
    Akce: 2006/10/04 ; Koeln
Výraz tezauru
    foreland basin
    synsedimentary tectonics
Klíčové slovo
Abstrakt (anglicky)
   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.
    MU Brno, Přírodovědecká fakulta
Kód přispěvatele
    MU, PřF
Zdrojový formát
Datum importu
    8. 8. 2012