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Reverse Drag Revisited: Why Footwall Deformation May Be The Key To Inferring Listric Fault Geometry, Phillip G. Resor, David D. Pollard
Reverse Drag Revisited: Why Footwall Deformation May Be The Key To Inferring Listric Fault Geometry, Phillip G. Resor, David D. Pollard
Phillip G Resor
Although reverse drag, the down warping of hanging wall strata toward a normal fault, is widely accepted as an indicator of listric fault geometry, previous studies have shown that similar folding may form in response to slip on faults of finite vertical extent with listric or planar geometry. In this study we therefore seek more general criteria for inferring subsurface fault geometry from observations of near-surface deformation by directly comparing patterns of displacement, stress, and strain around planar and listric faults, as predicted by elastic boundary element models. In agreement with previous work, we find that models with finite planar, …