Record details

Title
    Evidence for high-temperature diffusional creep preserved by rapid cooling of lower crust (North Bohemian shear zone, Czech Republic).
Author
    Dorr, Wolfgang
    Fiala, Jiří
    Kotková, Jana
    Maluski, Henri
    Valverde-Vaquero, Pablo
    Zulauf, Gernold
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Terra Nova
Vol./nr.
    Roč. 14, č. 5
Pages
    11
Year
    2002
Thesaurus term
    Ar-Ar mica dating
    diffusional creep
    Erzgebirge crystalline complex
    granulites
    high temperature
    microfabric
    North Bohemian shear zone
    orthogneisses
    rapid cooling and exhumation
    structures
    U-Pb monazite dating
Keyword
    Bohemian
    Cooling
    Creep
    Crust
    Czech
    Diffusional
    Evidence
    High-temperature
    Lower
    North
    Preserved
    Rapid
    Republic
    Shear
    Zone
Abstract (in english)
   Diffusional creep structures in orthogneisses and granulites of the North Bohemia shear zone (eastern part of the Erzgebirge crystalline complex)imply high interfacial free energy that has been preserved from equilibration as a result of rapid cooling. U-Pb dating of monazite and Ar-Ar dating of muscovite of Kadan orthogneisses result in a high cooling rate. This is consistent with a rapid tectonic movements, resulting in the juxtaposition of upper crustal rocks of the Tepla-Barrandian unit against lower crustal rocks of the Erzgebirge crystalline complex.
Contributor
    MU Brno, Přírodovědecká fakulta
Contributor code
    MU, PřF
Source format
    R
Import date
    8. 8. 2012