Record details

Title
    Modified Jeffery model: Influence of particle concentration on mineral fabric in moderately concentrated suspensions
Author
    Ježek, J.
    Paterson, Scott
    Schulmann, Karel
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Journal of Geophysical Research-Solid Earth
Vol./nr.
    Roč. 118, č. 3
Pages
    11
Year
    2013
Thesaurus term
    mineral fabric, Jeffery, numerical modeling
Keyword
    Concentrated
    Concentration
    Fabric
    Influence
    Jeffery
    Mineral
    Model
    Moderately
    Modified
    Particle
    Suspensions
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.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014