In the case of reverse drag of normal faulting, the
displacement and horizontal extension are determined based on the established
equations for the three mechanisms: rigid body, vertical shear and inclined
shear. There are three sub-cases of basal detachment for the rigid body model:
horizontal detachment, antithetic detachment and synthetic detachment. For the
rigid body model, the established equations indicate that the total
displacement on the synthetic base (Dt2)
is the largest, that on the horizontal base (Dt1) is moderate, and that on the antithetic base (Dt3) is the smallest. On the other hand,
the value of (Dt1) is
larger than the displacement for the vertical shear (Dt4). The value of (Dt1)
is larger than or less than the displacement for the inclined shear (Dt5) depending on the
original fault dip δ0,
bedding angle θ, and the angle of
shear directionβ.
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