Kinematics of transform and transcurrent faults

The geometrical consequences of displacements along strike-slip faults with respect to the associated deformation, terminal and otherwise, is discussed in detail. It is demonstrated that transform and transcurrent faults are two distinct geometrical, let alone mechanical, types of strike-slip faults. Transform faults are boundaries of solid crustal plates which always terminate at extensional or shortening structures, and as a rule are straight. Transcurrent faults are internal features of crustal deformation which terminate by splaying or bending, and are usually curved throughout. The results of the geometrical analysis are substantiated by model experiments and by field examples.