Počet záznamů: 1  

AMS record of brittle dilation, viscous-stretching and gravity-driven magma ascent in area of magma-rich crustal extension (Vosges Mts., NE France)

  1. 1.
    0381744 - GFÚ 2013 RIV DE eng J - Článek v odborném periodiku
    Kratinová, Zuzana - Schulmann, K. - Edel, J.-B. - Tabaud, A.-S.
    AMS record of brittle dilation, viscous-stretching and gravity-driven magma ascent in area of magma-rich crustal extension (Vosges Mts., NE France).
    International Journal of Earth Sciences. Roč. 101, č. 3 (2012), s. 803-817. ISSN 1437-3254. E-ISSN 1437-3262
    Grant CEP: GA AV ČR KJB300120702
    Výzkumný záměr: CEZ:AV0Z30120515
    Klíčová slova: anisotropy of magnetic susceptibility * crustal extension * magmatic fabrics * carboniferous
    Kód oboru RIV: DB - Geologie a mineralogie
    Impakt faktor: 2.261, rok: 2012

    Orogenic compression-related fabrics were reworked during regional extensional deformation in a large anatectic crustal domain of the Central Vosges (NE France). The extension was first accommodated by brittle dilation affecting vertically anisotropic high-grade rocks associated with emplacement of subvertical granitic sheets. The AMS fabric of granitoids is consistent with highly partitioned transtensional deformation marked by alternations of flat and steep foliations and development of orthogonal lineations. This deformation passes to top-to-the-southwest ductile shearing expressed in southerly migmatitic middle crust. The AMS fabric revealed moderately west-dipping foliations bearing subhorizontal NNW–SSE-trending lineations and predominantly plane strain to prolate shapes. This fabric pattern is interpreted as a viscous response of stretched partially molten crust during continuous ductile extension.
    Trvalý link: http://hdl.handle.net/11104/0212143

     
     
Počet záznamů: 1  

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