Podrobnosti záznamu

Název
    Intrusion of lamprophyre dyke and related deformation effects in the host rock salt: A case study from the Loulé diapir, Portugal
Autor
    Dědeček, Petr
    Henry, B.
    Machek, Matěj
    Marques, F. O.
    Petrovský, Eduard
    Roxerová, Zuzana
    Silva, P. F.
    Závada, Prokop
Jazyk
    anglicky
Typ dokumentu
    článek v odborném periodiku
Zdrojový dokument - seriál
    Tectonophysics
Svazek/č.
    Roč. 629, August
Strany
    s. 165-178
Rok
    2014
Poznámky
    Rozsah: 14 s. : P
Předmětová kategorie
    AMS
    CPO
    lamprophyre dyke
    microstructure
    paleomagnetism
    rock salt
Klíčové slovo
    Case
    Deformation
    Diapir
    Dyke
    Effects
    Host
    Intrusion
    Lamprophyre
    Loulé
    Portugal
    Related
    Rock
    Salt
    Study
Abstrakt (anglicky)
   A rock salt-lamprophyre dyke contact zone (sub-vertical, NE-SW strike) was investigated for its petrographic, mechanic and physical properties by means of anisotropy of magnetic susceptibility (AMS) and rock magnetic properties, coupled with quantitative microstructural analysis and thermal mathematical modelling. The quantitative microstructural analysis of halite texture and solid inclusions revealed good spatial correlation with AMS and halite fabrics. The fabrics of both lamprophyre and rock salt record the magmatic intrusion, "plastic" flow and regional deformation (characterized by a NW-SE trending steep foliation). AMS and microstructural analysis revealed two deformation fabrics in the rock salt: (1) the deformation fabrics in rock salt on the NW side of the dyke are associated with high temperature and high fluid activity attributed to the dyke emplacement; (2) On the opposite side of the dyke, the emplacement-related fabric is reworked by localized tectonic deformation.
   The paleomagnetic results suggest significant rotation of the whole dyke, probably during the diapir ascent and/or the regional Tertiary to Quaternary deformation.
Přispěvatel
    AV ČR Brno, Geofyzikální ústav
Kód přispěvatele
    AV ČR, GFÚ
Zdrojový formát
    U
Datum importu
    23. 10. 2014