Record details

Title
    Post-Variscan sedimentary record of the SW margin of the Bohemian massif: a review
Statement of responsibility
    Bernt Schröder, H. Ahrendt, A. Peterek, K. Wemmer
Other titles
    The German deep drilling project, KTB (Variant.)
Author
    Ahrendt, H.
    Peterek, A.
    Schröder, Bernt
    Wemmer, K.
Language
    anglicky
Source title - serial
    Geologische Rundschau
Vol./nr.
    Vol. 86
Pages
    p. 178-184
Year
    1997
Notes
    3 obr., 2 s.bibl.
    Zkr. název ser.: Geol. Rdsch.
Subject group
    chebská pánev
    Český masiv
    mesozoikum
    oblast snosová
    perm
    pokryv sedimentární
    proces synsedimentární
    sedimentologie
    tektonika bloková
    terciér
Geographical name
    ČR-Čechy
    SRN-Bayern
Keyword
    Bohemian
    Margin
    Massif
    Post-Variscan
    Record
    Review
    Sedimentary
    SW
Abstract (in english)
   The late-Palaeozoic to Cenozoic stratigraphic and structural record of the southwestern margin of the Bohemian massif and its extension beneath the southward adjacent Molasse basin shows that it is controlled by a system of basement-involving faults which came into evidence during Stephanian-Autunian times and which were subsequently repeatedly reactivated. Thick Permo-Carboniferous clastics accumulated in fault-bounded transtensional basins aligned with the southwestern Bohemian border zone (SWBBZ). Following late-Autunian deformation of these basins, the SWBBZ was overstepped by late-Permian to Late Jurassic platform sediments, reflecting tectonic stability. During the early Cretaceous the SWBBZ was strongly reactivated causing disruption and erosion of its Mesozoic sedimentary cover. Sedimentation resumed in the area of the SWBBZ during late Early and Late Cretaceous with clastic influx from the Bohemian massif reflecting gradually increasing tectonic activity along the SWBBZ.
   During the Late Senonian and Paleocene transpressional deformations resulted in upthrusting of major basement blocks. In the Molasse basin such structures are sealed by transgressive Late Eocene marine strata. Mio-Pliocene uplift of the Bohemian massif, involving mild reactivation of the SWBBZ, is related to the development of the volcano-tectonic Eger zone. The structural configuration of the SWBBZ is largely the result of Late Senonian-Paleocene compressional intraplate tectonics which play a major role in the structural framework of the northern Alpine and Carpathian foreland
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    25. 3. 2008
Import date
    8. 8. 2012