Record details

Title
    Exhumation, strain localization, and emplacement of granitoids along the western part of the Central Bohemian shear zone (Bohemian Massif)
Statement of responsibility
    Dirk Scheuvens, Gernold Zulauf
Author
    Scheuvens, Dirk
    Zulauf, Gernold
Language
    anglicky
Source title - serial
    International journal of Earth sciences (Geologische Rundschau)
Vol./nr.
    Vol. 89, no. 3
Pages
    p. 617-630
Year
    2000
Notes
    8 obr., 2 fot., 2 tab., 2 s.bibl.
    dříve Geol Rdsch.
    il.
    Zkr. název ser.: Int. J. Earth Sci. (Geol. Rdsch.)
Subject group
    amfiboly
    Barrandien
    biotit
    datování K/Ar
    datování U/Pb
    exhumace
    foliace
    geobarometrie
    granitoidy
    moldanubikum Šumavy
    plagioklasy
    proces syntektonický
    proterozoikum
    středočeský pluton
    vmístění
    vrásnění variské
    zirkon
    zóna střižná
Geographical name
    ČR-Čechy
    Janovice nad Úhlavou (Klatovy)
    Klatovy
    Nýrsko (Klatovy)
Keyword
    Along
    Bohemian
    Central
    Emplacement
    Exhumation
    Granitoids
    Localization
    Massif
    Shear
    Strain
    Western
    Zone
Abstract (in english)
   Emplacement of granitoid magmas and simultaneous exhumation of deeply burried rocks has been investigated along the western part of the Central Bohemian shear zone (CBSZ, Bohemian Massif). Combined structural, petrological and geochronological data of the steeply dipping shear zone suggest complex uplift and exhumation of deeply buried, high-temperature Moldanubian rocks, resulting in the juxta-position against the supracrustal Teplá-Barrandian unit. Uplift of Moldanubian rocks from depths of probably more than 30 km was initiated after crustal stacking in Upper Devonian times. Syntectonic Lower Carboniferous emplacement of the Klatovy pluton into the pre-existing shear zone led to melt-controlled strain softening and localization. However, the major part of the total displacement of the CBSZ was accommodated within a late- to post-intrusive high-temperature shear zone in the uprising Moldanubian unit and a post-intrusive unexposed fault zone in the Klatovy pluton, respectively.
   During uplift of the Moldanubian rocks, strain was strongly partitioned into melt-bearing zones (Klatovy pluton, migmatites of the Moldanubian unit) resulting in a repeated shift of defromation in space and time
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    7. 4. 2008
Import date
    8. 8. 2012