Record details

    Geochemistry of volcaniclastic rocks of the Carpathian Neogene Foredeep
Statement of responsibility
    Marie Adamová, Slavomír Nehyba
Other titles
    Výsledky geochemického studia vulkanoklastických hornin karpatské předhlubně
    Adamová, Marie
    Nehyba, Slavomír
Source title - serial
    Zemní (zemný) plyn a nafta
    Vol. 43, no. 2
    p. 303-312
    10 diagr., 1 tab., 21 bibl.
    České resumé
    Zkr. název ser.: Zem. Plyn Nafta.
Subject group
    asociace minerální
    chemismus hornin
    karpatská neogenní předhlubeň
    vzácné zeminy
Geographical name
    Chrlice (Brno-město)
    Ivančice (Brno-venkov)
    Otmarov (Brno-venkov)
    Rousínov (Vyškov)
    Únanov (Znojmo)
Abstract (in english)
   Detailed mineralogical and geochemical studies on horizons of volcaniclastics from the Lower Miocene (Upper Eggenburgian, Eggenburgian-Ottnangian, Ottnangian) and Lower Badenian deposits of the Carpathian Neogene Foredeep in the Czech Republic are presented in the article. Both Lower Miocene and Lower Badenian volcaniclastics are products of acid volcanism. Their volcanic material was derived from the calc-alkaline volcanic suite of a volcanic arc. the priincipal differences between Lower Miocene and Lower Badenian volcaniclastics were recognised both in the content and distribution of Rare Earth elements (REE). Lower Badenian samples generally have a higher content of REE, clearly defined negative Eu-anomaly and generally a steep REE profile. This can ve explained by a source of volcanic material from a more differentiated magmatic source than Lower Miocene volcaniclastics.
   Although the Lower Badenian volcaniclastics form a relativly more homogenous sequence than the Lower Miocene ones, some geochemical criteria can be used for their correlations (especially REE distribution patterns). Recognition of various tephra horizons can be used for the very detailed correlational studies of the almost uniform "tegel" deposits
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    25. 3. 2008
Import date
    8. 8. 2012