Record details

Title
    Granite landforms in South Moravia (Czech Republic)
Statement of responsibility
    Antonín Ivan, Karel Kirchner
Other titles
    Trends and achievements in physical geography, Veszprém, April 9-12, 1999 (Variant.)
Author
    Ivan, Antonín
    Kirchner, Karel
Language
    anglicky
Source title - serial
    Geografia Fisica e Dinamica Quaternaria
Vol./nr.
    Vol. 21, no. 1
Pages
    p. 23-26
Year
    1998
Notes
    2 obr., 12 bibl.
    Italské resumé
    Zkr. název ser.: Geogr. Fis. Dinam. Quat.
Subject group
    brněnský masiv
    dyjský masiv
    granitoidy
    kaňon
    kvartér
    kvartér moravských úvalů
    miocén
    reliéf
    svědecká hora
    zvětrávání
Geographical name
    ČR-Morava
    Havraníky (Znojmo)
    Hnanice (Znojmo)
    Konice (Znojmo)
    Nový Šaldorf (Znojmo)
    Popice (Znojmo)
    Šatov (Znojmo)
Keyword
    Czech
    Granite
    Landforms
    Moravia
    Republic
    South
Abstract (in english)
   The pre-Variscan Dyje and Brno Massifs were unmantled and deeply eroded already before the Devonian. The massifs were strongly affected by Variscan nappe tectonics, accompanied by cataclasis and mylonitisation. These process were not favourable for the evolution of typical granite topography. On the extensive regional planation surface the only remarkable featuresare relics of a very trick kaoline weathering crust (80-100 m). Although tropical weathering was the primary process in formation of kaolines, the importance of Variscan nappe tectonics is undisputable. Granite landforms are more frequent in the Dyje Massif, probably owing to the deep level of denudation and less intense shattering. They occur on the southeastern marginal slope of the Bohemian Massif and in the deep river valleys, especially in the Dyje canyon. On the marginal slope, the most conspicuous forms are inselbergs. Some of them were buried under Miocene sediments and later partly exhumed.
   Tors and microforms (weathering pits, exfoliation) are rare. In the meandering Dyje canyon the granite forms arenumerous and in general they are also younger. Most common are the valley-side granite tors and block fields. Microforms, e.g. tafoni and pseudolapiés, mainly occur on the south-facing slopes
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    19. 2. 2008
Import date
    8. 8. 2012