Thirteen pictures separated by time steps of 3 minutes were used for analysis
of movie
4). 100 markers were digitised for the thirteen
pictures. The Rf values increase locally to 1.5 along the shear bands and the
microlithons are characterised by unstrained areas, although these areas shrink
with the time and the strain gradient increases from the microlithons to the
shear bands (C'). On the left side a strain concentration is visible with
increasing deformation. The contour plots of Wn show super-simple
shear in two directions in the S-C' fabric. At the start of the
movie Wn varies along the shear bands. Wn at shear
band tips show an anticlockwise rotation and that in the center a clockwise
rotation. Values of 1 were localised around the shear bands and with progressive
deformation the areas of super-simple shear shrink at the expense of a simple
shear.