Podrobnosti záznamu

Název
    Metamorphosed carbonates of Krkonoše Mountains and Paleozoic evolution of Sudetic Terranes (NE Bohemia, Czech Republic)
Údaj o odpovědnosti
    Jindřich Hladil, František Patočka, Václav Kachlík, Rostislav Melichar, Martin Hubačík
Autor
    Hladil, Jindřich, 1953-
    Hubačík, Martin
    Kachlík, Václav
    Melichar, Rostislav
    Patočka, František
Jazyk
    anglicky
Zdrojový dokument - seriál
    Geologica carpathica
Svazek/č.
    Vol. 54, no. 5
Strany
    p. 281-297
Rok
    2003
Poznámky
    5 obr., 3 pl., 1 tab., 3 s. bibl.
    il.
    Zkr. název ser.: Geol. carpath.
Předmětová skupina
    Archaeocyatha
    Barrandien
    Brachiopoda
    dolomitizace
    Gondwana
    krkonošsko-jizerské krystalinikum
    metamorfóza
    mramor
    ooid
    paleotektonika
    paleozoikum-spodní
    pražská pánev
    prekurzor
    prvky stopové
    sedimenty karbonátové
    Trilobita
    vzácné zeminy
Geografické jméno
    Bozkov (Semily)
    Chýnice (Praha-západ)
    ČR-Čechy
    Horní Albeřice (Trutnov)
    Horní Lánov (Trutnov)
    Horní Maršov (Trutnov)
    Jesenný (Semily)
    Koněprusy (Beroun)
    Polsko - jihozápad
    Poniklá (Semily)
    Praha-Velká Chuchle
    SRN-Sachsen
    Svoboda nad Úpou (Trutnov)
    Štěpanická Lhota (Semily)
Klíčové slovo
    Bohemia
    Carbonates
    Czech
    Evolution
    Krkonoše
    Metamorphosed
    Mountains
    NE
    Paleozoic
    Republic
    Sudetic
    Terranes
Abstrakt (anglicky)
   The metamorphosed carbonate bodies structurally embedded in the East and South Krkonoše Complexes (ESKC - N Bohemian Massif, Krkonoše Mountains, Czech Republic) have principally two types of sedimentary precursors. The first precursor corresponds to Early Cambrian dolomitized oolites and microbialites (Dolní Albeřice) and provides practically the same fauna and geochemical features on residues as observed in Lusatia (Doberlug-Torgau Syncline). The Cadomian calc-alkaline meta-igneous rock sources, geochemically observed on this Early Cambrian, were also found in the Early Devonian of the Barrandian. The second precursor consists of open-sea calcitic wackestones/packstones and dolomitized packstones/grainstones (Poniklá and Horní Lánov, part) and yields fossil remnants, which are widely comparable with N Gondwanan carbonate sediments of the Bohemian type.
   The Middle-Late Devonian sedimentary continuation in the ESKC was likely absent (or restricted), and this was preceded by increased geochemical variation of insoluble residues in the marble precursors. Successively diversified compositions of trapped weathering products (regional to inter-regional background sediment, close to Post-Archean Average Australian Sedimentary distribution in REE, with a significant proportion of atmospheric depositions) suggest, that area precursors of the ESKC, Lusatia, Barrandian and Polish Central Sudetes were well separated and expanded to a great extent. The residues from carbonate rocks of the Sudetes correspond to a complex paleotectonic evolution - from Cambrian intracontinental rifting to Devonian arcs. However, there is a trend toward the East and with time toward the Middle Devonian, that Sudetic carbonatic residues indicate a variety of sources posing a wide spectrum of tectonic setting types
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    31. 3. 2008
Datum importu
    8. 8. 2012