Settling of particles in homogeneous shear turbulence

The settling of (inertial) particles is studied in homogeneous shear turbulence. A drift velocity perpendicular to gravity is measured due to the interplay between the homogeneous shear turbulence and gravity acting on the particles. We introduce a model to predict and understand this phenomenon.

A low greenschist facies retrogressive reaction couple controlling Sb mineralisations in the Massif Central, France

This presentation will present the preliminary results of the research, conducted by Hanno de Wijs and myself at the University of Utrecht in the Netherlands, on Sb deposits in the Massif Central in France. The research consists of two parts. One concerning whh the origin of the Sb and the mechanims of release and transport. The second theme is...