Record details

    Accretion of first Gondwana-derived terranes at the margin of Baltica
Statement of responsibility
    Z. Belka, P. Valverde-Vaquero, Wolfgang Dörr, Hans Ahrendt, K. Wemmer, Jürgen Schäfer
Other titles
    Palaeozoic Amalgamation of Central Europe (Variant.)
    Ahrendt, Hans
    Belka, Z.
    Dörr, Wolfgang
    Franke, Werner
    Schäfer, Jürgen
    Valverde-Vaquero, P.
    Wemmer, K.
Source title - serial
    Geological society special publication
    Vol. 201
    p. 19-36
    7 obr., 2 tab., 4 s. bibl.
    Zkr. název ser.: Geol. Soc. spec. Publ. (London).
Subject group
    datování K/Ar
    datování U/Pb
    klastické částice
    oblast snosová
    vrásnění kadomské
    vrásnění variské
    zóna suturová
Geographical name
Abstract (in english)
   In central Europe, three crustal units, i.e. the Malopolska, the Lysogóry and the Bruno-Silesia, can be recognized by basement data, faunas and provenance of clastic material in the Cambrian clastic rocks. They are now situated within the Trans-European Suture Zone, a tectonic collage of continental terranes bordering the Tornquist margin of the palaeocontinent of Baltica, but during the Cambrian their position in relation to each other and to Baltica was different from today. These units are exotic terranes in respect to Baltica and are interpreted as having been derived from the Cadomian margin of Gond-wana. Their detachment is probably related to the final break-up of the supercontinent Rodinia at c. 550-590 Ma. New detrital zircon and muscovite age data provide evidence that Malopolska was derived from the segment of the Cadomian orogen that bordered the Amazonian Craton.
   It must have already separated from Gondwana in Early Cambrian time (some 40-50 Ma before Avalonia became detached and began its rapid drift). The accretion of Malopolska to Baltica occurred between late mid-Cambrian and Tremadocian times. Both palaeonto-logical and provenance evidence demonstrate that Malopolska and not Avalonia was the first terrane to join the Baltica palaeocontinent. This event initiated the progressive crustal growth of the European lithosphere, which continued during Phanerozoic times and led to the formation of modern Europe
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    24. 10. 2007
Import date
    8. 8. 2012