Figure F35. (A) Total degree of alteration (vol% secondary phases) compared with (B) the total abundance of veins per section. The shaded areas represent a zone of intense crystal-plastic deformation that terminates at the base of a reverse shear zone at 960 mbsf (lowest arrow). The two upper arrows indicate fault zones at 550 and 690 mbsf. Note that the abundance of veins is low in the zone of high crystal-plastic deformation between 800 and 960 mbsf.