Record details

    Modified Jeffery model: Influence of particle concentration on mineral fabric in moderately concentrated suspensions
    Ježek, J.
    Paterson, Scott
    Schulmann, Karel
Publication type
    článek v periodiku
Source title - serial
    Journal of Geophysical Research-Solid Earth
    Roč. 118, č. 3
Thesaurus term
    mineral fabric, Jeffery, numerical modeling
Abstract (in english)
   Amodified Jeffery model involving particle interactions allows the simulation of preferred orientation of crystals and the anisotropy of magnetic susceptibility in magmatic flow with up to 40% of rigid particle fraction. Numerical simulations are compared to analogue and natural fabrics. A study of the role of particle concentration shows that the increasing percentage of crystal fraction in dilute suspensions leads to progressive attenuation of the fabric intensity and cyclicity. At high strains in simple shear flow, the lineation converges to a constant value close to the shear plane. With increasing particle concentration, the fabric diverges from the shear direction reflecting the effect of increased crystal tiling. The model can be applied to quantify mineral preferred orientations of crystal mushes in magmatic fabric studies.
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
Import date
    15. 10. 2014