Record details

Title
    Variscan polyphase tectonothermal record in the West Sudetes (Bohemian Massif) - deduced from Ar-Ar ages
Author
    Kachlík, V.
    Maluski, H.
    Marheine, D.
    Patočka, František
    Zelazniewicz, A.
Conference
    International Conference on Basement Tectonics (15.), Galicia 2000. (04.07.2000-08.07.2000 : La Coruňa, Španělsko)
Language
    anglicky
Publication type
    konferenční příspěvek (zahraniční konference)
Source title - monograph
    15th International Conference on Basement Tectonics, Galicia 2000
Pages
    s. 254-257
Notes
    Projekt: BARRANDE97008, GA AV ČR
    Projekt: KSK1012601, GA AV ČR
    Rozsah: 4 s.
    Výzkumný záměr: CEZ:AV0Z3013912
Subject category
    Ar-Ar geochronology
    HP-LT-; HT- metamorphic rocks
    tectonothermal events
Keyword
    Ages
    Ar-Ar
    Bohemian
    Deduced
    Massif
    Polyphase
    Record
    Sudetes
    Tectonothermal
    Variscan
    West
Abstract (in english)
   The distribution of Ar-Ar ages in the West Sudetes reflects the complexity of the Variscan polyphase deformation and metamorphism ranging from very low-grade to eclogite facies with peaks around 360 Ma (HP-LT-; HP-HT-events), c. 340 Ma (HT-event) and c. 325 Ma (shearing and thrusting). The final juxtaposition of the diversified tectonometamorphic units of the West Sudetes took place in the Late Carboniferous. A comparison of geochronological data obtained from subduction related HP-rocks of the Armorican terrane assemblage reveals the set of broadly contemporaneous latest Devonian HP-events in the West Sudetes, Armorican Massif and NW Iberian Massif.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012