I was not sure 
could use when 
there may be a 
presentation. 
tions and skip 
design and not 
exactly what proprietary information I 
I prepared this text a few weeks ago. Thus, 
few discrepancies between this text and my 
Also, if I appear vague as to exact loca- 
some obvious anomalies, it will be by 
oversight. 
The exploration approach for finding areas of interest 
is illustrated by the following figures. Figure 2 illus 
trates the normal view and Figure 3 the edge-enhanced view 
of a seaside area, offshore of which oil/gas is known to 
occur. The areas of conjugate fracture "loci", better 
seen by using Figure 4 (from a vertical view on the X-Y 
monitor), have been projected offshore. Although this 
admittedly gives only one dimension for picking the 
drilling site, other variables such as lease boundaries, 
rules and regulations, or money are considerable help. 
The use of these methods in mining exploration, 
particularly for mineralized veins or fracture intersec 
tions which exhibit a high incidence of mineralization, 
have been successful. For example, Figure 5 illustrates 
a normal view of an area with some bedrock structure, the 
two main intersecting faults being particularly obvious: 
Figure 6 shows the edge-enhanced view. Even more helpful, 
however, is the high oblique view shown from the X-Y 
monitor (Fig. 7) which, with Figure 6, illustrates the 
productive fault intersections. 
Figure 8 illustrates a similar example whereby the 
low-level aerial photograph view gives little indication 
of the mineralized veins. However, as Figure 7 shows, 
several strong northeast-southwest fractures exist in the 
area. Figure 10 illustrates a density slice of the same 
area but at a somewhat different scale, whereby the 
vegetation (spinifex and mulga) distribution is found to 
terminate against mineralized zones. 
CONCLUSIONS 
Although there is no available substitution for a 
competent, experienced photo-interpreter during the ini 
tial phases of exploration for economic mineral deposits, 
the use of the density slicer, edge-enhancer and the 
X-Y monitor to electronically enhance imagery provides 
that extra "something." For instance, not only is the