Page 92 - Microtectonics

80 4 · Foliations, Lineations and Lattice Preferred Orientation

Fig. 4.14. Domainal spaced cleavage with chlorite stacks (Sect. 7.4.2) in microlithons. Collio Formation. Southern Alps, Italy. Width of
view 1.8 mm. PPL

Fig. 4.15. Discrete crenulation cleavage (S subhorizontal) overprinting a slaty cleavage (S steep) that is subparallel to bedding (S white
2
1
0
layer at left). The crenulation cleavage is selectively developed in more pelitic material and changes abruptly over a lithological boundary
(white layer). Note the apparent offset of the white layer in the lower left corner that may reflect fault movement or removal of a flexure by
pressure solution (cf. Fig. 4.21). Leiden Collection. Width of view 4 mm. PPL