Podrobnosti záznamu

Název
    Influence of melt induced mechanical anisotropy on the magnetic fabrics and rheology of deforming migmatites, Central Vosges, France
Autor
    Cosgrove, John
    Edel, Jean-Bernard
    Hasalová, Pavlína
    Ježek, Josef
    Lexa, Ondrej
    Schulmann, Karel
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Structural Geology
Svazek/č.
    Roč. 31, č. 10
Strany
    15
Rok
    2009
Výraz tezauru
    AMS
    fabric modeling
    melt
    migmatite rheology
    migmatites
    Vosges
Klíčové slovo
    Anisotropy
    Central
    Deforming
    Fabrics
    France
    Induced
    Influence
    Magnetic
    Mechanical
    Melt
    Migmatites
    Rheology
    Vosges
Abstrakt (anglicky)
   In the Central Vosges (France), we describe and model the structural relationships existing between orthogneiss domains and their surrounding viscous migmatites. These domains show a structural and anisotropy of magnetic susceptibility (AMS) zonation associated with an increasing amount of melt from the core to their margins. A pre-extension oblate to plane strain fabric is preserved in the core of the orthogneiss domains where the granite veins were emplaced along a dilated mechanical anisotropy. This systematic fabric and structural succession is due to contrasting rheological evolution between orthogneiss and metasedimentary migmatites during progressive melting and continuously evolving degree of mechanical anisotropy in the stronger orthogneiss. Numerical modeling confirms the role of the relationship between initial mechanical anisotropy and superimposed deformation overprints on finite AMS fabrics in migmatites.
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012