Record details

    Cenozozoic intraplate volcanic rock series of the Bohemian Massif: a review
Statement of responsibility
    Jaromír Ulrych, Edvín Pivec, Miloš Lang, Kadosa Balogh, Vladimír Kropáček
Other titles
    Magmatism and Rift Basin Evolution (Variant.)
    Balogh, Kadosa
    Kropáček, Vladimír
    Lang, Miloš
    Pivec, Edvín
    Ulrych, Jaromír
Source title - serial
    Vol. 9
    p. 123-129
    8 obr., 1 tab., 2 s.bibl.
Subject group
    alkalický typ
    chemismus hornin
    datování K/Ar
    kenozoické vulkanity Českého masivu
    zóna riftová
Geographical name
    Česká republika
Abstract (in english)
   The young intraplate volcanism of the Bohemian Massif is an integral part of the Cenozoic central European Volcanic Province associated with a rift system originated as a repercussion of the Hercynian foreland to the collision of the African and Euroasian plates. The alkaline volcanism was initiated by adiabatic decompression of updomed asthenospheric mantle developed in association with the Alpine Orogeny. The continuous Late Cretaceous to Quaternary volcanism of 79(87?) to 0.26 (0.11?) Ma ages of the Bohemian Massif displays two principal maxima: (i) the pre-rifting event producing ultra-alkaline volcanism (79-49 Ma) and (ii) riftogenic event with alkaline volcanism (42-0.26 Ma). The bimodally distributed riftogenic volcanisms is formed by two coexisting differentiation series: olivine nephelinite/basanite-trachyte and nephelinite/tephrite-phonolite.
   The volcanism of the Bohemian Massif is concentrated (more than 99vol.%) in the Ohře (Eger) Rift (ENE-WSW) in addition to transverse structures such as the labe and Odra Tectono-Volcanic Zones (WNW-ESE) and the Cheb-Domažlice Graben (NNW-SSE). Approximate volume and areal extent of the preserved volcanic products is about 180 km3 and 1,100 km2, respectively
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    14. 2. 2008
Import date
    8. 8. 2012