Abstract - Faulting imposes strains on wall-rock volumes. In
suitably bedded sequences, wall-rock strains are partly accommodated by
bed-parallel slip. Bed-parallel slip may displace fault zone margins, giving
rise to fault-surface asperities that are sheared-off during subsequent
fault slip. The removal of asperities formed by bed-parallel slip can make
a significant contribution to fault zone thickness.
Geology 26, 71-74, 1998.