Geology Reference
In-Depth Information
Fig. 8.46.
Evolution of the structure contour map of reverse faults having equal and opposite dips.
North-south
dashed contours
are on faults
A
and
B
.
Thin solid lines
are contours on the marker hori-
zon.
Wide lines
are fault traces. Contours are
dotted
where hidden.
a
Fault
A
strikes north-south and
is displaced 100 units up due west.
b
Fault
B
strikes north-south and is displaced 200 units up due
east.
c
Final map, enlarged to show detail.
Arrow
shows the displacement direction of fault
B
It should be noted that all the previous examples of crosscutting faults are based
on the simplest possible fault geometries. The faults are planar and so the attitude
of the marker horizon is not changed by displacement on the faults. The displace-
