Record details

Title
    Sheared metagranitoids in the Ještěd Range Mts.: the role in the westward propagation of the Variscan orogenic wedge in the West Sudetes
Author
    Fajst, Miroslav
    Kachlík, V.
    Patočka, František
Conference
    Zelazno 2002. Meeting of the Czech Tectonic Studies Group (7. : 09.05.2002-12.05.2002 : Áelazno, Polsko)
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Geolines
Vol./nr.
    Roč. 14, -
Pages
    s. 43-44
Year
    2002
Notes
    Projekt: IAA3111102, GA AV ČR
    Rozsah: 2 s.
    Výzkumný záměr: CEZ:AV0Z3013912
    Výzkumný záměr: CEZ:MSM 113100005
Subject category
    Krkonoše-Jizera Terrane
    metagranitoids
    Variscan orogeny
Keyword
    Ještěd
    Metagranitoids
    Mts
    Orogenic
    Propagation
    Range
    Role
    Sheared
    Sudetes
    Variscan
    Wedge
    West
    Westward
Abstract (in english)
   The Krkonoše-Jizera Terrane nappe stacking post-dated the Late Devonian according to structural position of the metagranitoid bodies (thrust over the Ještěd Ridge Unit Middle to Late Devonian limestones) and may correspond to Early Carboniferous times. Rheological inhomogenities along boundaries of the metagranitoid bodies and greenschist grade complexes were convenient places ready for initiation and development of the Variscan thrust planes. Access of fluids during the greenschist facies metamorphism made the deformation of metagranitoids more effective due to deformation softening in higher crustal levels. According to this explanation the metagranitoids acted as important horizons for channelling of strain and played an important role during tectonic stacking of the Krkonoše-Jizera Terrane in a regional scale.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012