Record details

Title
    Relations and Tectonic Setting of Emsian-Eifelian (Devonian) Basins : Implication for Early Variscan Configuration of the Bohemian Massif. 2
Statement of responsibility
    Jindřich Hladil, Petr Čejchan
Author
    Čejchan, Petr
    Hladil, Jindřich, 1953-
Language
    anglicky
Source title - monograph
    Theophrastus' Contributions to Advanced Studies in Geology
Pages
    s. 149-179
Notes
    14 obr., 6 tab., 6 s.bibl.
Subject group
    analýza faktorová
    Český masiv
    devon
    eifel
    ems
    pánev sedimentační
    rotace
    rychlost sedimentace
    tektonika desková
    vrásnění variské
    zóna subdukční
Geographical name
    Česká republika
    Evropa
    Svět
Keyword
    Basins
    Bohemian
    Configuration
    Devonian
    Early
    Emsian-Eifelian
    Implication
    Massif
    Relations
    Setting
    Tectonic
    Variscan
Abstract (in english)
   Relations among the Emsian-Eifelian basins were studied quantitatively, primarily by factor analysis of basin fills. The main focus was the Bohemian Massif but surroundings regions were also considered. Emsian-Eifelian basins between Gondwana and Laurussia were arranged in vast triangle consisting of patchy oceanic and thinned continental crust. Although the Rheic Ocean was gradually reduced, a sequel to this ocean appeared along the former Morocco-Kaczawa shear-fault. Mediterranean basins were separed from eastermost Laurussia areas also by another prominent ocean tract. Evidence for Prototethys channel in the south increased. Minor development of island arcs or accretionary prisms was typical for the entire Emsian-Eifelian interval. The basic Emsian-Eifelian scenarion accords with a broad right-handed shear-zone with rotated domains. Tectonic wedging and sporadic underthrusting decreased former dimensions.
   Incipient opening of a long line of basins occurred posterior to the Rheic subduction beneath the Laurussian margin. Mutual relations and evolution of the basins are documented sequentially time-slice by time-slice
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    18. 2. 2008
Import date
    8. 8. 2012