Record details

Title
    Single zircon U-Pb ages and geochemistry of granitoid gneisses from SW Poland: evidence for an Avalonian affinity of the Brunian microcontinent
Author
    Hanžl, Pavel
    Kröner, Alfred
    Mazur, Stanisław
    Melichar, Rostislav
    Paderin, Ilya
    Rodionov, Nickolay
    Sergeev, Sergey
    Szcepański, Jacek
    Turniak, Krzysztof
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Geological Magazine
Vol./nr.
    Roč. 147, č. 4
Pages
    19
Year
    2010
Thesaurus term
    Sudetes, Bohemian Massif, zircon dating, geochemistry, Proterozoic,Gondwana,Avalonia.
Keyword
    Affinity
    Ages
    Avalonian
    Brunian
    Evidence
    Geochemistry
    Gneisses
    Granitoid
    Microcontinent
    Poland
    Single
    SW
    U-Pb
    Zircon
Abstract (in english)
   Seven granitoid gneisses from the contact zone between the eastern margin of the Variscan belt and the Brunian microcontinent in SW Poland have been dated by ion-microprobe and 207Pb/206Pb single zircon evaporation methods. The zircons define two age groups for the gneiss protoliths:(1) late Neoproterozoic c. 576-560 Ma and (2) early Palaeozoic c. 488-503 Ma granites. The granitoid gneisses belonging to the basement of the Brunian microcontinent contain abundant Mesoproterozoic to latest Palaeoproterozoic inherited material in the range of 1200-1750 Ma.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014