Figure F52. Photomicrograph of serpentine-chlorite schist from a semibrittle shear zone. Fibrous chlorite defines the strong planar to slightly anastomosing foliation. An early generation of fibrous chlorite (top of image) is folded as a consequence of later deformation (Sample 209-1271B-11R-1, 55–57 cm) (plane-polarized light: blue filter; field of view = 5.5 mm; image 1271B_101).