At progressive deformation and
a magnification of 20x in cross- polarised light
(Movie 4) a S-C'
Type cleavage is now well developed with foliated microlithons (M)
and C'-shear bands. Strongly elongated grains define the shear bands,
which are wavy, anastomosing and short. The shear bands (Movie
4) were not >
all active at the same time. First the shear bands 1, 2, 3 were activated
and with progressive deformation, the movement around the S-C' cleavage was
concentrated along shear band 4.
Microlithons have an asymmetric shape and rotated with
development of a sigmadoidal shape foliation (s) between the shear bands (C').
In the microlithon core the foliation is less intensive as inside the shear
bands (C').