Počet záznamů: 1

Fabric transpositions in granite plutons - an insight from non-scaled analogue modelling

  1. 1.
    0337771 - GFU-E 2011 RIV IN eng J - Článek v odborném periodiku
    Kratinová, Zuzana - Machek, Matěj - Kusbach, V.
    Fabric transpositions in granite plutons - an insight from non-scaled analogue modelling.
    Journal of the Geological Society of India. Roč. 75, č. 1 (2010), s. 267-277 ISSN 0016-7622
    Grant CEP: GA AV ČR KJB300120702
    Výzkumný záměr: CEZ:AV0Z30120515
    Klíčová slova: analogue modelling * magmatic fabrics * granite intrusions * rheology * AMS
    Kód oboru RIV: DB - Geologie a mineralogie
    Impakt faktor: 0.396, rok: 2010

    Investigations on a set of experimental models of highly viscous intrusions were carried out in order to study the internal strain pattern during vertical ascent and emplacement of granite intrusions. The strain pattern was determined by means of anisotropy of magnetic susceptibility resulting from the orientation of magnetite particles in a liquid plaster medium. The modelled intrusions show distinct fabrics reflecting the flow of a rheologically complex, non-Newtonian material. During the vertical growth of the intrusion, constrictional vertical fabrics are transposed into flattening fabrics, and along with the development of low-intensity fabric domains are passively transported upwards. Vertical growth takes place along subvertical thrust shear zones that satisfactorily explain the discordant magmatic fabrics in granites along intrusion sides.
    Trvalý link: http://hdl.handle.net/11104/0181695