Record details

Title
    Känozoische Hebungs- und Abtragungsgeschichte im Umfeld des westlichen Egergrabens
Statement of responsibility
    Bernt Schröder, Andreas Peterek
Other titles
    Cenozoic degradation history of basement units in the surroundings of the western Eger (Ohře) Rift
Author
    Peterek, Andreas
    Schröder, Bernt
Language
    německy
Source title - serial
    Zeitschrift der Deutschen geologischen Gesellschaft
Vol./nr.
    Jg. 152, Nr. 2-4
Year
    2001
Notes
    5 obr., 6 s.bibl.
    Anglické resumé
    il.
    Zkr. název ser.: Z. Dtsch. geol. Gesell.
Subject group
    denudace
    kontrola tektonická
    oblast snosová
    paleolimnologie
    pánev sedimentační
    pleistocén
    podkrušnohorské pánve
    saxothuringikum
    terciér
    těžké minerály
    topaz
    transport
    výzdvih klenbový
    zóna zlomová
Geographical name
    Cheb
    ČR-Čechy
    Most
    Sokolov
    SRN-Bayern
    SRN-Sachsen
Keyword
    Abtragungsgeschichte
    Egergrabens
    Hebungs-
    Känozoische
    Umfeld
    Westlichen
Abstract (in english)
   The source areas of Cenozic sediments of the Ohře (Eger) Rift subbasins in the S and the Leipzig and Lausitz Lowland area (comp. fig.1) can be substantiated by heavy mineral signals. The occurence of topaz derived from exposed late-Variscan magmatites (Fichtelgebirge-Erzgebirge/Krušné Hory in the N; Kaiserwald/Slavkovský les - Karlsbad/Karlovy Vary massif in the S) is very diagnostic (comp. fig. and 3). it is apparent from the stratigraphic record of the topaz bearing Cenozoic sediments (comp. fig.2 and 3) that intense denudation of the Fichtelgebirge - Erzgebirge/Krušné hory source areas began in the late Eocene and lasted till the middle Miocene (comp. fig. 4, 5). Plio-/Pleistocene sediments occur only along the NNW-SSE trending Marienbad/Mariánské Lázně fault (comp. fig.5). The input of detritus to the basins seems to be mainly under tectonic control.
   Laterally and temporally differentiated uplift to the Erzgebirge/Krušné Hory fault block subunits started earliest in the W (late Eocene; comp. fig. 4). Its northward tilting as a coherent unit of present configuration and the development of its southern escarpment came into existence since the early Miocene (-20 Ma; comp. fig. 4,5). Plio-/Pleistocene uplift may have caused intensified erosion and long distance transport of topaz as a marker mineral reaching as far as the eastern Netherlands
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    25. 3. 2008
Import date
    8. 8. 2012