Two populations of secondary faults are associated with oblique-slip normal faulting.  The first set consists of normal faults that are subperpendicular to the displacement direction.  The second set consists of oblique-slip normal faults that are subparallel to the trend of the master fault.  This trend becomes more prominent at depth within the clay layer.  The master-fault trend also becomes more prominent as the thickness of the clay layer decreases.  Fault lengths initially follow a power-law size distribution but exhibit an exponential size distribution with increasing strain.  Increasing displacement rate results in a decrease in fault size, an increase in the number of faults, a decrease in the spacing between faults, and a decrease in the width of the deformed zone; fault trends are unaffected.  The deformation pattern in cross section consists of a highly faulted extensional forced fold.  Antithetic faults are most numerous near the top surface of the model and decrease in number with depth.

The map views of the oblique-slip models closely resemble those formed in left-lateral strike-slip models (i.e., two secondary fault populations).  These map views, however, differ considerably from those formed in models of dip-slip normal faulting, which show a single secondary fault trend.  Alternatively, the cross-sectional views of the oblique-slip models are similar to those formed in dip-slip models (i.e, a highly faulted extensional forced fold).  These cross-sectional views are dissimilar to those formed in strike-slip models, which show no appreciable or consistent vertical offsets along the secondary faults.  Thus, it is necessary to use both map and cross-section data to distinguish among the fault patterns produced by strike-slip, oblique-slip, and dip-slip faulting.

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