Geology Reference
In-Depth Information
Fig. 2.25.
Intersection between topo-
graphic contours and a planar
marker horizon. Contour in-
terval 20 ft.
a
Structure con-
tours on a geologic horizon
(
within shaded rectangle
) and
topographic contours. The out-
crop trace of the contact is the
thick line
.
b
Oblique 3-D view
to
E
.
c
Geologic map of the
outcrop trace (
thick line
) with
the structure contours of the
plane removed
