Record details

    Magnetostratigraphy susceptibility of the Přídolian-Lochkovian (Silurian-Devonian) GSSP (Klonk, Czech Republic) and a coeval sequence in Anti-Atlas Morocco
Statement of responsibility
    R.E. Crick, B.B. Ellwood, Jindřich Hladil, El hassani, František Hrouda, Ivo Chlupáč
    Chlupáč, Ivo, 1931-2002
    Crick, R. E.
    El hassani, A.
    Ellwood, B. B.
    Hladil, Jindřich, 1953-
    Hrouda, František
Source title - serial
    Palaeogeography, palaeoclimatology, palaeoecology
    Vol. 167, no. 1-2
    p. 73-100
    10 obr., 4 tab., 2 s.bibl.
    Zkr. název ser.: Palaeogeogr. Palaeoclimatol. Palaeoecol.
Subject group
    magnetická susceptibilita
    Milankovičova teorie
    pražská pánev
    proces cyklický
    profil vrtný
    sedimenty karbonátové
    zóny biostratigrafické
Geographical name
    Suchomasty (Beroun)
    Tmaň (Beroun)
Abstract (in english)
   The magnetosusceptibility event and cyclostratigraphy (MSEC) record for the Přídolian-Lochkovian (Silurian-Devonian) Global Boundary Stratotype Section and Point (GSSP) (Klonk, Prague Basin, Czech Republic) is described and used to establish a magnetostratigraphy susceptibility profile for the GSSP, GSSP MSEC data are summarized into three magnetozones (MSZ). The Tmaň MSZ (Late Přídolian) with 13 MSSZs (MSSZ), the Klonk MSZ (latest Přídolian and earliest Lochkovian) with 17 MSSZs, and the Voskop MSZ (Early Lochkovian) with 17 MSSZs. The base of Klonk MSSZ 2 is coincident with the base of Lochkovian and the Devonian. The proposed magnetostratotype for the Přídolian-Lochkovian boundary is supported by MS data from a nearby core through the GSSP sequence and into the upper Ludlow. Three additional MSZs are recognized for proportion of the core sequence older than the GSSP boundary sequence.
   The extension of the MSZs and MSSZs away from the proposed magnetostratotype is tested by comparison with a Lochkovian seqeunce in the western Sahara of southeastern Morocco. MSZs are result of global sea level fluctuations that alter base elevel and the pattern of ersion and influx of detrial paramagnetic mineral components into the marine environment. Large-scale transgressive and regressive patterns interpreted from the MSEC data establish that the Silurian-Devonian boundary in the Barrandian region falls between a short-lived transgressive pulse in the latest Přídolian and an equally short-lived regressive pulse in the earliest Lochkovian
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    31. 3. 2008
Import date
    8. 8. 2012