Record details

    A Study of the Dětaň Locality (Oligocene, Doupovské Hory Mts. Volcanic Complex, Czech Republic): Collection of Field Data and Starting Points for Interpretation
Statement of responsibility
    Radek Mikuláš, Oldřich Fejfar, Jaromír Ulrych, Eva Kadlecová, Vladimír Cajz
Other titles
    HIBSCH 2002 Symposium, Teplá near Třebenice, Ústí nad Labem, Mariánské Lázně, Czech Republic, June 3-8, 2002 (Variant.)
    Cajz, Vladimír
    Fejfar, Oldřich, 1931-
    Kadlecová, Eva
    Mikuláš, Radek
    Ulrych, Jaromír
    Žigová, Anna
Source title - serial
    Vol. 15
    p. 91-97
    2 pl., 3 tab., 4 bibl.
    Zkr. název ser.: Geolines (Praha)
Subject group
    datování K/Ar
    lokalita geologická
    půda fosilní
    trace fossils
    vulkanity Doupovských hor
    zóny biostratigrafické
Geographical name
    Dětaň (Louny)
Abstract (in english)
   During the Early Oligocene, a limiting factor for subaerial vegetation at southern margin of the Doupovské hory Mts. was a repeated fall of basaltic tuffs. Because no tuff level provided a record of pedogenesis, intervals between the eruptions must have been very short (tens ofyears al maximum). Subsequently, the locality was lying on a flood plain of a watercourse bringing volcanic material; at that time, the ecosystems were at least twice destructed by pyroclastic flows, which left violet, sharply bounded strata. The age of the basaltic lava flow overlying the tuffs and tuffites was determined by K/Ar method (bulk sample) at 32.6+-1.7 Ma. According to relative paleontological dating, the locality belongs to mammalian Zone MP 21. These data point to the conclusion that all the volcaniclastic series appeared in a relatively short time in the Early Oligocene
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    15. 6. 2007
Import date
    8. 8. 2012