Podrobnosti záznamu

    Geochemistry and composition of the Middle Devonian Srbsko Formation in Barrandian Area, Bohemian Massif: A trench or fore-arc strike-slip basin fill with material from volcanic arc of continental margin?
    Hladil, Jindřich
    Strnad, L.
    Meeting of the Czech Tectonic Studies Group (6. : 03.05.2001-06.05.2001 : Donovaly - Nízké Tatry, Slovensko)
Typ dokumentu
    článek v odborném periodiku
Zdrojový dokument - seriál
    Roč. 13, -
    s. 111-114
    Projekt: KSK3012103, GA AV ČR
    Rozsah: 4 s.
    Výzkumný záměr: CEZ:AV0Z3013912
Předmětová kategorie
    Srbsko Formation of the Barrandian area
    tectonic setting
Klíčové slovo
Abstrakt (anglicky)
   An extreme sedimentary starving combined with dissolution characterises the Kačák Member, which covers the limestones of depths of several hundreds of meters. The siliciclastic sediments of Srbsko Fm. contained pelagic carbonate ooze, which was significantly dissolved. Distal turbiditite siltstones/sandstones of Roblín Member contain, beside quartz, also small lithic and feldspar grains. The TM contain garnet and zircon, pyroxene, tourmaline, apatite, Fe-Ti oxides, spinel, Fe-sulphides, and rarely Mg-olivine and Mg-biotite. Long prismatic, dipyramidal and oval zircons were found. The least mobile elements were used for tectonic-setting proxies (e.g., La-Sc-Th, Th-Sc-Zr/10 or Th-Co-Zr/10), where CIA-ACM settings were indicated. The pull-down of the seafloor into the abyss was followed by shedding of continental material, then, the tectonic thickening and shallowing suggest formation of accretionary prism.
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
Datum importu
    8. 8. 2012