Record details

    Diagenesis, Magnetic Overprint and Tectonics near Mokrá (E of Brno)
Statement of responsibility
    Jindřich Hladil, Petr Pruner, Miroslav Krs
    Hladil, Jindřich, 1953-
    Krs, Miroslav, 1928-
    Pruner, Petr
Source title - serial
    Exploration, geophysics, remote sensing and environment
    Vol. 5, no. 2
    p. 24-28
    2 obr., 1 diagr., 11 bibl.
    Zkr. název ser.: Explor. Geophys. remote Sens. Environm. (Brno)
Subject group
    moravskoslezské prevariské paleozoikum
    tektonika bloková
    vrásnění variské
Geographical name
    Mokrá (Brno-venkov)
Abstract (in english)
   The color alternation index (CAI) for conodonts indicates a notable difference between shallow and deep Variscan burial conditions in southern and central part of the Moravian Karst, respectively. An analysis of the structures in question shows that at maximum depths in the middle of the Carboniferous the Mokrá Devonian must have been in a huge column of Culm (flysch) nappes where, as in each compression crust thickening with prevailing sedimentary units, rather low thermal gradients can be expected. A distinctive crystallization and magnetic overprint in carbonate rocks is not related with orogenic deformation as it was formerly assumed, but is evidently post-orogenic. It corresponds with isostatic Carboniferous/Permian cropping of rocks from greater depths to shallow layers (in our case of the partial Mokrá-Horákov nappes). This assumption is confirmed by the B-component of remanent magnetization of rocks, common for various localities within orogen.
   It corresponds to the diagenetic and magnetic overprint at the time when Variscan orogenic deformations ceased to generate differences in movement of slices or rock blocks
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    25. 3. 2008
Import date
    8. 8. 2012