Record details

Title
    Gorstian palaeoposition and geotectonic setting of Suchomasty Volcanic Centre (Silurian, Prague Basin, Teplá-Barrandian Unit, Bohemian Massif)
Author
    Čížková, Kristýna
    Frýda, J.
    Janoušek, V.
    Manda, Š.
    Pruner, Petr
    Rapprich, V.
    Schnabl, Petr
    Štorch, Petr
    Tasáryová, Z.
    Trubač, J.
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    GFF
Vol./nr.
    Roč. 136, č. 1
Pages
    s. 262-265
Year
    2014
Notes
    Projekt: GAP210/10/2351, GA ČR3cav_un_auth*0263318
    Rozsah: 14 s. : P
Subject category
    basalt geochemistry
    Gorstian
    palaeolatitude
    Prague Basin
    Silurian
    Suchomasty Volcanic Centre
Keyword
    Basin
    Bohemian
    Centre
    Geotectonic
    Gorstian
    Massif
    Palaeoposition
    Prague
    Setting
    Silurian
    Suchomasty
    Teplá-Barrandian
    Unit
    Volcanic
Abstract (in english)
   A multidisciplinary palaeomagnetic, whole-rock geochemical and volcanological study was carried out in Gorstian deposits of the Suchomasty Volcanic Centre in the western segment of the Prague Basin (Teplá-Barrandian Unit, Bohemian Massif). Phreato-Strombolian eruptions of alkali basalts, transitional between enriched mid-ocean rift basalt and ocean-island basalt, associated with effusions of lava flows within the lower-middle Scanicus chimaera graptolite Biozone at the Vinařice locality, yield a mean palaeomagnetic direction that allows for computation of a palaeolatitude of 24.4°S. Present data support that the Prague Basin was a continental rift basin, situated on presumed Perunica microplate. The Perunica microplate drifted at southern subtropical palaeolatitudes of 24.4° in Gorstian time and experienced either 170° counter-clockwise or 190° clockwise rotation during the Variscan Orogeny.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    23. 10. 2014